Difference between revisions of "Aggro"

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−	* Transcribed from http://www.lethalitygaming.com/threads/hate-aggro-threat-how-it-all-works.1952/	+	'''Aggro''' (noun) is a behavioral state of most NPCs in Everquest which generally describes an aggressive pursuit and attack of players or other NPCs. When used as a verb, it refers to the action of putting an NPC in that state. Players can accomplish this in many ways, primarily by dealing melee, ranged or spell damage, casting other detrimental spells, or using detrimental skills. Pets can also cause aggro if directed to attack an NPC. NPCs will also attack players without provocation under a number of circumstances and conditions.
−	{{Cleanup Needed}}	+	In contrast, an NPC's initial state (before aggro) can be classed in several ways. The most common is a static spawn, where an NPC simply stands exactly where he spawned without moving. Most citizens of cities and monsters within dungeons behave this way. A patrolling spawn (pat) will move from where he spawned along a predictable or random path of fixed nodes. Most dungeons feature a minority of pats, and most animals in outdoor zones also act this way. A scripted spawn will behave in some other, more dynamic way, based on other conditions.
−	In Everquest mobs are semi intelligent in combat and do not merely respond to “Hate”.	+	When aggroed, the NPC is assigned a hate table (which is opaque to the player) that ranks players primarily based on a numerical value called '''hate''' or '''threat''', but also on other factors. '''Very generally,''' most NPCs will pursue the top-ranked player (who is said to have '''hard aggro''', '''top hate''' or '''top aggro''') on this table until they are within range, often using a straight-line path towards the player in outdoor zones and fixed routes within indoor zones and many parts of cities. Once in range, they attack the player with melee or spells. However, this pursuit can be hindered, slowed, delayed, or stopped by a number of crowd-control methods, and such methods are significant gameplay features of Everquest and following MMORPGs. Many players also informally or imprecisely refer to hate (a.k.a. threat) as aggro. Though related concepts, it is useful to distinguish between them. Hate is a number used to rank players, and this article will refer to the player or NPC with top ranking as having '''top hate.'''
−	Hate meaning Threat + Damage + Healing = Hate (how most MMOs now a days work, WOW, EQ2, FF14)	+	== Eliminating Aggro ==
		+	To eliminate aggro and return an NPC to its initial state (either standing peacefully at a static location, or patrolling on a route) all players must be removed from its hate table. Probably the most common methods of losing aggro are zoning (changing zones) or camping (sitting and logging out), either will remove the acting player from all hate tables of any number of NPCs. This can also be accomplished with skills or spells such as [[Memory Blur]], [[Blanket of Forgetfulness]], and [[Atone]] which may remove all players from targeted NPC(s)' hate table, or [[Feign Death]] which may remove the Monk/caster from all NPCs' hate tables. Mez spells (such as [[Mesmerize]] and [[Screaming Terror]]) also have a chance to eliminate aggro, but not for Bards ([[Kelin's Lucid Lullaby]], [[Crission's Pixie Strike]], and [[Song of Twilight]]). All spells and skills that eliminate aggro have a chance to fail, and camping and zoning will always work (if all affected players do so).
−	They factor in things like Faction, Distance, Damage Done, Implied Damage Done, Healing Done, CC Attempts, CC Lands, etc.	+	In some zones, NPCs may '''leash'''; eliminating aggro on players who have run very far away, outside of '''leash range'''. This mechanic was implemented relatively recently on P99, and can be unpredictable. Some zones where leashing can occur are [[Temple of Veeshan]], [[Western Wastes]], [[Kael Drakkel]], and [[Plane of Sky]]. NPCs which successfully [[Gate]] may also leash. Sometimes NPCs will leash instantly, other times they seem to require some unknown or variable period of time. The precise conditions and range of leashing are still being explored by the author.
		+	== Body Aggro ==
−	Faction - What the mob thinks of you, discussed below under Social Aggro Section.	+	When a player (or NPC) is close to an NPC the target will make several checks on every server tick (6 seconds) to determine if it should aggro. This is called body aggro, in contrast to attacking or provoking the NPC in some way, which is called initial aggro. Because body aggro can be slow, and generally requires a short distance, it is usually unintentional. Initial aggro also caps the offending action's hate to about 300 or so.
		+	* [[Faction]]: A player who /cons scowling or threatening may be attacked by an NPC. This check is skipped for invisible players when the NPC cannot see invisible, for players who [[Sneak]] behind an NPC, or for charmed or merchant NPCs. Pets do not body aggro, but rather attack whatever their master is aggroed on.
		+	* Line of Sight: NPCs must have line of sight with the player to aggro them. Since line of sight generally goes both ways, a player can begin to cast a spell on an NPC, then duck it if desired. If the player received a line of sight error, then the NPC will never aggro them from that position. Note: casting on an underwater NPC while you are on land or vice-versa may block spells, but probably won't block line of sight checks for aggro purposes.
		+	* Distance: A distant NPC will never aggro. The threshold distance is different depending on the NPC, and can be reduced with spells like [[Lull]] or [[Harmony]]. A sitting player may be aggroed from much further away. Players who are many levels lower compared to an NPC, or who are less levels higher than an NPC, will also be aggroed from longer distances.
		+	* Level: In addition to distance penalties described above, higher level players may never be attacked by many lower level NPCs. Sitting often negates this bonus, and some monsters such as many undead simply ignore this check altogether.
		+	* Luck: There does seem to be some random chance to avoid body aggro entirely on a given server tick. Individuals within a large group of NPCs perform this check independently, so you're more likely to aggro a large group quickly.
−	Distance - How far you are from the mob, discussed below in Proximity Aggro Section.	+	== Social Aggro ==
−	Damage Done - This is raw damage, be it from Melee or Spells.	+	When one NPC is close to another on the same faction (or perhaps on a list of related or allied factions) they will aggro if their comrades are aggroed. Unlike body aggro, social aggro checks occur much more frequently, many times per second. Social aggro can be controlled through a similar list of checks:
		+	* Faction: Humanoid NPCs will check the faction of their peer. If they share the same primary faction, they will probably social aggro. If they have related factions, they might or might not. For example, live frogloks will not assist undead frogloks, but they will assist each other. [[Sontalak]] ([[Claws of Veeshan]]) will assist [[Esorpa of the Ring]] ([[Ring of Scale]]), [[Kromzek]] and [[Kromrif]] giants will always assist each other. [[Invisibility]], [[Sneak]], and other player faction adjustments no longer prevent social aggro on P99. NPCs never check YOUR faction standing with them when they social.
		+	* Type: In absence of a primary faction, NPCs may social with other NPCs of the same type, model, race, or species. Undead will tend to assist all other undead. Elementals will assist other elementals. Animals will assist other animals if they are the same or related species. Pets only social on their master's aggro table.
		+	* Line of sight: An NPC must have line of sight with another NPC to gain social aggro. The NPC's line of sight with you is not checked. Pets do not check their line of sight to their master.
		+	* Distance: NPCs must be close together to social aggro with each other. This required distance seems to generally be shorter than body aggro thresholds. Pets will social on their master's attackers from any distance.
		+	* Level: If an NPC is sufficiently lower level relative to the player, then they may not social. Higher level players will be more likely to single pull an NPC from certain sparse packs. This check might not be independent from the distance check but rather reduces the distance threshold.
		+	* <strike>Luck:</strike> Social aggro tends to be much more predictable than body aggro. If you gained social aggro in a situation, it's likely to occur every time in the same circumstances.
		+	* <strike>Pets:</strike> NPCs never social with pets on Project 1999 servers (even though they did on live, RIP PoD battles).
−	Implied Damage Done - This is how much you can potentially hit for. A 2 hander that can potentially hit a mob for 200 damage but misses, generates more hate than a 2 hander that can potentially hit a mob for 100 damage but misses.	+	== FD Re-aggro ==
−	Healing Done - This is raw healing from spells / potions.	+	This is a special case for players who [[Feign Death]]. FD, when successful, will immediately remove all aggro on all NPCs. However, if the player stands, or if a spellcasting NPC lands or is resisted by the player (dispell spells excluded) the FD is '''broken''' and all NPCs will re-engage. If the player is not cast on, and waits for every NPC to return to their spawn points, the NPCs '''reset'''. At that point, the player may stand up without re-aggroing them. Rarely, the FD performs a silent critical success, allowing the player to stand up before the NPCs reset. This is rare however, and the player receives no notification when it happens, often coming as an unexpected, minor annoyance.
−	CC Attempts - This is your attempt at slowing, mezzing, stunning, rooting, etc regardless of if it lands or is resisted, it generates hate.	+	== Wife Aggro ==
−	CC Lands - This is your successful slowing, mezzing, stunning, rooting, etc.	+	'''The elimination, avoidance, and management of this type of aggro is left as an exercise for the reader.'''
−	There are 3 types Aggro you can have when you are fighting any mob in Everquest:	+	See [[Wife Faction]]
		+	== Hate Management ==
−	Social Aggro - “I don’t like the way this guy looks, I’mma eat him”	+	The general concepts of Everquest hate mechanics are very common in MMORPGs. The following example illustrates a simple case and demonstrates the mechanics of hate:
−	Social Aggro is triggered merely from your faction standing with a mob, Assuming another player doesn’t have hard aggro on that mob Faction standing being:​	+	''Three players approach a froglok. The froglok, being ornery and scowling to all of these adventurers, immediately aggroes and begins attacking. Cerate Salve, a barbarian shaman, Pint, a dwarf paladin, and Calias Darkstar, a high elf wizard. Calias, being a typical wizard, decides to quickly retaliate with [[Sunstrike]], dealing 1615 damage. Cerate, underestimating the froglok, forgoes casting a slow and also nukes with [[Ice Strike]], but only for 675. Pint slashes the beastly amphibian for 200 damage. In this scenario, the froglok was already in melee range of all three adventurers, so Calias gains top hate and gets smacked by a slimy fist. He immediately dies, because wizards are basically made of glass. The froglok now turns to Cerate, who caused the second most damage and is now top hate.''
−	Scowls at you ready to attack - Biggest aggro range from faction multiplied by the mobs con color to you. Red mobs get a higher multiplier than green mobs, gray mobs in most situations will ignore you entirely unless they are scripted to not care about their own well being.	+	=== Range ===
−	Glares at you threateningly - Lowest aggro range from faction multiplied by the mobs con to you. Same rules apply with con, but there is a much lower base aggro range for this faction level.	+
−	Glowers at you dubiously - Not KOS, does not apply here and is the bubble of the KOS line.	+
−	​	+
−	Proximity Aggro - “This A hole is really close to me and I’m kind of lazy and tired and don’t want to walk... I hate him so I’mma smack him”.	+	If Cerate were wiser, they would have cast their spells from afar. Players who are within melee range of a monster have their hate directly compared, but when they are some distance away, this value is effectively reduced. The exact reduction isn't documented but it's probably divided in half or something similar. ''(Please revise if an exact reduction is demonstrated or better estimated.)'' Calias probably would have drawn aggro even if he were far away because of the recklessly large nuke he cast. Besides, a mob will wipe its hate toward a player if the distance from the mob to said player is more than 1300 units.
−	Proximity Aggro is generated by your distance from the mob. There are various distance “rings” that exist for a mob. Based on how high you are up on the aggro list, you may be able to “pull aggro” off of the tank that lost aggro to a giant nuke or a chanter pet going crazy, if he simply is not close enough.​	+	=== Abilities ===
−	This mechanic allows melee classes to “joust aggro” on a mob they pulled hard aggro on.​	+	If Calias were wiser, he would have waited for Pint to do more damage first before engaging. When the tank has a head-start, his hate number will be higher when you land your nuke. Warriors are especially slow at generating hate since their damage is primarily melee damage, which has reduced hate overall (see [[Sakuragi's Warrior Guide]] for specifics). Paladins do have additional tools for generating hate: such as the [[Taunt]] skill, and blind and stun spells, which deal hate equivalent to hundreds of points of damage that spells can do. Other spells, such as debuffs, snares, slows, and poison DoTs also generate large amounts of hate, over and above any damage they might do (if any). Resisted spells and spells which do not take hold seem to generate the same hate as landed spells, if not more. Healing usually generates very little aggro, although an early [[Complete Healing]] can certainly draw an NPC on the cleric.
−	This mechanic also makes it impossible for a tank to easily pull a mob out of a group of people once it goes loose into them, even if he has hard aggro in the pile.​	+	Players who have too much hate can reduce it through a variety of skills and spells such as [[Hide]], [[Feign Death]], [[Concussion]] and [[Cinder Jolt]].
		+	=== Root ===
−	Hard Aggro - “This guy is the biggest A hole here and is close to me so I’ll smack him”	+	''Pint sighs, knowing Calias and Cerate too well, and casts [[Root]] on the froglok and steps as close to the beast as he can. The beast turns from Cerate to Pint who is now much easier to reach.''
−	Hard Aggro is your typical MMO hate mechanic (Damage Done + Implied Damage Done + Healing Done + CC Attempts + CC Lands + whatever other minor mechanics exist that generate hate = Hate)​	+	While rooted, NPCs behave differently. They temporarily ignore (but do '''not''' forget!) their hate table and simply attack whichever player is the closest to them, if any are in melee or spell range. Root can be an excellent tool for the temporary control of aggro, but your tank must either expect, notice, or be notified of the NPC being rooted in order to ensure they step closer than other melee characters in the fight.
−	Is MT Hate > Your Hate?​	+	=== Other ===
−	Yes? = Tank has aggro​	+	Some other factors to consider are sitting, which temporarily generates large amounts of hate (sit hate seems to be forgotten immediately when the player stands). Faction and level differences also are rumored to have effects on hate. Passive differences between classes which affect hate generation are also unconfirmed (given the wide differences between the abilities and damage bonuses of various classes, it would be difficult to test).
−	No? = Based on how far you are from the mob and how much more your Hate is than the MT, you may have a mob beating on you.​	+	== Agro Changes ==
		+	===Dec 23rd 2022 ===
		+	[https://project1999.com/forums/showthread.php?t=412540]
−	What the no means in this situation is, Melee classes have a harder time with not pulling aggro for various reasons due merely to distance (although belly casters evens the playing field a bit on this). Melee classes are in melee range, thus they are max possible Hate from the Proximity Aggro mechanic which means they need to know what to do because they are literally only competing for Hate with Hard Aggro. Casters / Healers could also overly piss off a mob, well beyond the MT’s Hate level and not only pull aggro, but totally ruin the position of the mob. But do not worry, there are things you can do if you pay attention and react properly.​	+	Rogean: Adjusted aggro formula calculations for spell SPAs: AC/Atk Debuff, Snare, Slow, Blind, Stun, Fear, Spinstun, Charm, Mez.
		+	Rogean: The SPA above are capped at 1200 aggro, or 400 if the player is not high enough level to use the spell (Ex: Procs).
−	I’m a Tank or a Melee DPS and I pulled aggro off the MT… What do I do?	+	Rogean: Removed an overall spell cap of 400 aggro if player was not high enough level for the spell. This is instead capped per SPA Above.
−	Well what is really cool about Everquest is that tanks have a “rescue” ability on a very short recast timer.	+	Rogean: Bards are now capped at 140 aggro per song/spell/proc in all circumstances.
−	What this means is that pending a successful taunt, whoever lands the taunt will jump to the top of the aggro list + 2% above whatever that Hate value was. So let’s assume the Hate generated was an arbitrary number of 1000 hate. A successful taunt would put the caster (hopefully the MT) at 1020 Hate instantly, even if they were only at 600 or 700 Hate prior to taunt landing.	+	Rogean: Various spells in our database had erroneous bonus hate values that should not exist in any of our eras. The code handling that is now removed. This affected various spells in the Tashan line and Ykesha proc.
−	(For Tanks Only)	+	[[Category: Player Guides]]
−		+
−	What this also means is that tanks can artificially ramp aggro off of each other in 2% increments if it is done correctly. This should only ever be done early on in the fight and only if it is coordinated or you could ruin the CH rotation and wipe the raid. If you don’t know if you should be taunting, do not taunt. The only other time you should ever press taunt without thought as a tank that is not MT, is if the mob is loose in the raid. Besides that, stay away from this button.	+
−		+
−	(For Tanks Only)	+
−		+
−	Now that I got taunt mechanics out of the way, what do you do when you pulled aggro as a tank or a melee DPS?	+
−		+
−	Well assuming you did not want the aggro (you were not saving someone squishy from dying or ramping Hate for the MT) You should simply back up 4 steps (this could be more based on how big the mob is, but just target the mob and watch him) to put yourself out of Proximity Aggro and allow the MT a few seconds to pass you on the hate list and establish more Hard Aggro than you have.	+
−		+
−	If you have backed up 4 steps and the mob moves with you, you are well beyond the MT with Hard Aggro and now can drag the mob around, drag it back to where it should be and wait a few seconds and try again. NEVER back up into the casters / healers when doing this, or you could move the mob and then lose it to proximity aggro of a caster and wipe the raid or at the very least ruin positioning.	+
−		+
−	I’m an Enchanter with a charmed pet and I pulled aggro off the MT… What do I do?	+
−		+
−	As an enchanter, your charmed pets will be doing upwards of 4 to 5x raw damage / implied damage over anyone else in the raid. On trash mobs this doesn’t matter too much, your pet will just tank and the MT can use your pet’s aggro ramp to his advantage to build Hate way over what a normal PC player can ever generate.	+
−		+
−	If you are fighting a boss though, depending on if it has the mighty buff on it, YOU will be tanking. A good enchanter knows its pets limits and is watching aggro constantly. A good MT is constantly watching for aggro changes and is timing taunt to be instant cast on the second that aggro is switched to take that aggro over and maintain position, heal priority and keep everyone safe. If you back your pet off as soon as you notice your pet’s Hard Aggro has surpassed the tank by enough to rip aggro away and make the mob come to you, you can generally avoid taking any damage because the MT will have either hit it for a bit of damage, procced a weapon or successfully taunted. In this case, wait a few seconds and send the pet back in and just watch carefully for aggro for a bit.	+
−		+
−	If the mob actually makes it to you, do not just stand still. Unlike other MMOs, we have Proximity Aggro. If you are standing in range of the mob, the tank has to actually BEAT you and your pet for Hate before it will switch back to the MT, if you back up slowly (1 - 2 steps at a time and watch the mob’s target) you can take far less damage, or maybe even no damage and get the mob back on the MT.	+
−		+
−	I’m a Ranged DPS and I pulled aggro off the MT… What do I do?	+
−		+
−	Similarly to an Enchanter with a pet… any Ranged DPS (caster or a ranger that is not eating DT’s and wants to pew pew) you should not have a problem unless you generate so much Hard Aggro that you rip the mob away from the MT… but if you do, practice the same method as above and slowly back up 2 steps at a time and watch for an aggro switch. You should never run around in large circles trying to live. You may run out of range of spot heals or drop Proximity Aggro on someone else and not the MT and get them killed. Slow steps are how you transfer aggro back safely.	+
−		+
−	I’m a Healer and I pulled aggro off the MT… What do I do?	+
−		+
−	I’m not really sure how you pulled aggro off the MT but maybe the tank got hit for 90% of his health, got stunned so couldn’t provoke or auto attack and you CHed before he swung a single weapon. In this case the pull is probably pretty messed up so you need to practice the above steps of slowly backing away until you are out of range enough for the MT to get the Hate back and then continue to back away to give him space to pull the mob back to the proper tank spot.	+
−		+
−	FOR EVERYONE	+
−		+
−	If a mob is ever loose in a raid next to you and the MT is there picking up aggro. As soon as you see he / she has aggro back, slowly back up 5 - 10 steps to allow him to pull the mob back to the proper position. This applies to Tanks, Healers, DPS both melee and ranged	+
−		+
−	The MT would have to sit in the group for 45 seconds building uncontested hate to reliably pull the mob out of the Proximity Aggro range… or you could all back up 5 - 10 steps and let him easily just walk back to the correct spot AND the mob will follow without question.	+

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Latest revision as of 19:58, 5 August 2023

Aggro (noun) is a behavioral state of most NPCs in Everquest which generally describes an aggressive pursuit and attack of players or other NPCs. When used as a verb, it refers to the action of putting an NPC in that state. Players can accomplish this in many ways, primarily by dealing melee, ranged or spell damage, casting other detrimental spells, or using detrimental skills. Pets can also cause aggro if directed to attack an NPC. NPCs will also attack players without provocation under a number of circumstances and conditions.

In contrast, an NPC's initial state (before aggro) can be classed in several ways. The most common is a static spawn, where an NPC simply stands exactly where he spawned without moving. Most citizens of cities and monsters within dungeons behave this way. A patrolling spawn (pat) will move from where he spawned along a predictable or random path of fixed nodes. Most dungeons feature a minority of pats, and most animals in outdoor zones also act this way. A scripted spawn will behave in some other, more dynamic way, based on other conditions.

When aggroed, the NPC is assigned a hate table (which is opaque to the player) that ranks players primarily based on a numerical value called hate or threat, but also on other factors. Very generally, most NPCs will pursue the top-ranked player (who is said to have hard aggro, top hate or top aggro) on this table until they are within range, often using a straight-line path towards the player in outdoor zones and fixed routes within indoor zones and many parts of cities. Once in range, they attack the player with melee or spells. However, this pursuit can be hindered, slowed, delayed, or stopped by a number of crowd-control methods, and such methods are significant gameplay features of Everquest and following MMORPGs. Many players also informally or imprecisely refer to hate (a.k.a. threat) as aggro. Though related concepts, it is useful to distinguish between them. Hate is a number used to rank players, and this article will refer to the player or NPC with top ranking as having top hate.

Contents 1 Eliminating Aggro 2 Body Aggro 3 Social Aggro 4 FD Re-aggro 5 Wife Aggro 6 Hate Management 6.1 Range 6.2 Abilities 6.3 Root 6.4 Other 7 Agro Changes 7.1 Dec 23rd 2022

Eliminating Aggro

To eliminate aggro and return an NPC to its initial state (either standing peacefully at a static location, or patrolling on a route) all players must be removed from its hate table. Probably the most common methods of losing aggro are zoning (changing zones) or camping (sitting and logging out), either will remove the acting player from all hate tables of any number of NPCs. This can also be accomplished with skills or spells such as Memory Blur, Blanket of Forgetfulness, and Atone which may remove all players from targeted NPC(s)' hate table, or Feign Death which may remove the Monk/caster from all NPCs' hate tables. Mez spells (such as Mesmerize and Screaming Terror) also have a chance to eliminate aggro, but not for Bards (Kelin's Lucid Lullaby, Crission's Pixie Strike, and Song of Twilight). All spells and skills that eliminate aggro have a chance to fail, and camping and zoning will always work (if all affected players do so).

In some zones, NPCs may leash; eliminating aggro on players who have run very far away, outside of leash range. This mechanic was implemented relatively recently on P99, and can be unpredictable. Some zones where leashing can occur are Temple of Veeshan, Western Wastes, Kael Drakkel, and Plane of Sky. NPCs which successfully Gate may also leash. Sometimes NPCs will leash instantly, other times they seem to require some unknown or variable period of time. The precise conditions and range of leashing are still being explored by the author.

Body Aggro

When a player (or NPC) is close to an NPC the target will make several checks on every server tick (6 seconds) to determine if it should aggro. This is called body aggro, in contrast to attacking or provoking the NPC in some way, which is called initial aggro. Because body aggro can be slow, and generally requires a short distance, it is usually unintentional. Initial aggro also caps the offending action's hate to about 300 or so.

• Faction: A player who /cons scowling or threatening may be attacked by an NPC. This check is skipped for invisible players when the NPC cannot see invisible, for players who Sneak behind an NPC, or for charmed or merchant NPCs. Pets do not body aggro, but rather attack whatever their master is aggroed on.
• Line of Sight: NPCs must have line of sight with the player to aggro them. Since line of sight generally goes both ways, a player can begin to cast a spell on an NPC, then duck it if desired. If the player received a line of sight error, then the NPC will never aggro them from that position. Note: casting on an underwater NPC while you are on land or vice-versa may block spells, but probably won't block line of sight checks for aggro purposes.
• Distance: A distant NPC will never aggro. The threshold distance is different depending on the NPC, and can be reduced with spells like Lull or Harmony. A sitting player may be aggroed from much further away. Players who are many levels lower compared to an NPC, or who are less levels higher than an NPC, will also be aggroed from longer distances.
• Level: In addition to distance penalties described above, higher level players may never be attacked by many lower level NPCs. Sitting often negates this bonus, and some monsters such as many undead simply ignore this check altogether.
• Luck: There does seem to be some random chance to avoid body aggro entirely on a given server tick. Individuals within a large group of NPCs perform this check independently, so you're more likely to aggro a large group quickly.

Social Aggro

When one NPC is close to another on the same faction (or perhaps on a list of related or allied factions) they will aggro if their comrades are aggroed. Unlike body aggro, social aggro checks occur much more frequently, many times per second. Social aggro can be controlled through a similar list of checks:

• Faction: Humanoid NPCs will check the faction of their peer. If they share the same primary faction, they will probably social aggro. If they have related factions, they might or might not. For example, live frogloks will not assist undead frogloks, but they will assist each other. Sontalak (Claws of Veeshan) will assist Esorpa of the Ring (Ring of Scale), Kromzek and Kromrif giants will always assist each other. Invisibility, Sneak, and other player faction adjustments no longer prevent social aggro on P99. NPCs never check YOUR faction standing with them when they social.
• Type: In absence of a primary faction, NPCs may social with other NPCs of the same type, model, race, or species. Undead will tend to assist all other undead. Elementals will assist other elementals. Animals will assist other animals if they are the same or related species. Pets only social on their master's aggro table.
• Line of sight: An NPC must have line of sight with another NPC to gain social aggro. The NPC's line of sight with you is not checked. Pets do not check their line of sight to their master.
• Distance: NPCs must be close together to social aggro with each other. This required distance seems to generally be shorter than body aggro thresholds. Pets will social on their master's attackers from any distance.
• Level: If an NPC is sufficiently lower level relative to the player, then they may not social. Higher level players will be more likely to single pull an NPC from certain sparse packs. This check might not be independent from the distance check but rather reduces the distance threshold.
• Luck: Social aggro tends to be much more predictable than body aggro. If you gained social aggro in a situation, it's likely to occur every time in the same circumstances.
• Pets: NPCs never social with pets on Project 1999 servers (even though they did on live, RIP PoD battles).

FD Re-aggro

This is a special case for players who Feign Death. FD, when successful, will immediately remove all aggro on all NPCs. However, if the player stands, or if a spellcasting NPC lands or is resisted by the player (dispell spells excluded) the FD is broken and all NPCs will re-engage. If the player is not cast on, and waits for every NPC to return to their spawn points, the NPCs reset. At that point, the player may stand up without re-aggroing them. Rarely, the FD performs a silent critical success, allowing the player to stand up before the NPCs reset. This is rare however, and the player receives no notification when it happens, often coming as an unexpected, minor annoyance.

Wife Aggro

The elimination, avoidance, and management of this type of aggro is left as an exercise for the reader.

See Wife Faction

Hate Management

The general concepts of Everquest hate mechanics are very common in MMORPGs. The following example illustrates a simple case and demonstrates the mechanics of hate:

Three players approach a froglok. The froglok, being ornery and scowling to all of these adventurers, immediately aggroes and begins attacking. Cerate Salve, a barbarian shaman, Pint, a dwarf paladin, and Calias Darkstar, a high elf wizard. Calias, being a typical wizard, decides to quickly retaliate with Sunstrike, dealing 1615 damage. Cerate, underestimating the froglok, forgoes casting a slow and also nukes with Ice Strike, but only for 675. Pint slashes the beastly amphibian for 200 damage. In this scenario, the froglok was already in melee range of all three adventurers, so Calias gains top hate and gets smacked by a slimy fist. He immediately dies, because wizards are basically made of glass. The froglok now turns to Cerate, who caused the second most damage and is now top hate.

Range

If Cerate were wiser, they would have cast their spells from afar. Players who are within melee range of a monster have their hate directly compared, but when they are some distance away, this value is effectively reduced. The exact reduction isn't documented but it's probably divided in half or something similar. (Please revise if an exact reduction is demonstrated or better estimated.) Calias probably would have drawn aggro even if he were far away because of the recklessly large nuke he cast. Besides, a mob will wipe its hate toward a player if the distance from the mob to said player is more than 1300 units.

Abilities

If Calias were wiser, he would have waited for Pint to do more damage first before engaging. When the tank has a head-start, his hate number will be higher when you land your nuke. Warriors are especially slow at generating hate since their damage is primarily melee damage, which has reduced hate overall (see Sakuragi's Warrior Guide for specifics). Paladins do have additional tools for generating hate: such as the Taunt skill, and blind and stun spells, which deal hate equivalent to hundreds of points of damage that spells can do. Other spells, such as debuffs, snares, slows, and poison DoTs also generate large amounts of hate, over and above any damage they might do (if any). Resisted spells and spells which do not take hold seem to generate the same hate as landed spells, if not more. Healing usually generates very little aggro, although an early Complete Healing can certainly draw an NPC on the cleric.

Players who have too much hate can reduce it through a variety of skills and spells such as Hide, Feign Death, Concussion and Cinder Jolt.

Root

Pint sighs, knowing Calias and Cerate too well, and casts Root on the froglok and steps as close to the beast as he can. The beast turns from Cerate to Pint who is now much easier to reach.

While rooted, NPCs behave differently. They temporarily ignore (but do not forget!) their hate table and simply attack whichever player is the closest to them, if any are in melee or spell range. Root can be an excellent tool for the temporary control of aggro, but your tank must either expect, notice, or be notified of the NPC being rooted in order to ensure they step closer than other melee characters in the fight.

Other

Some other factors to consider are sitting, which temporarily generates large amounts of hate (sit hate seems to be forgotten immediately when the player stands). Faction and level differences also are rumored to have effects on hate. Passive differences between classes which affect hate generation are also unconfirmed (given the wide differences between the abilities and damage bonuses of various classes, it would be difficult to test).

Agro Changes

Dec 23rd 2022

[1]

Rogean: Adjusted aggro formula calculations for spell SPAs: AC/Atk Debuff, Snare, Slow, Blind, Stun, Fear, Spinstun, Charm, Mez.

Rogean: The SPA above are capped at 1200 aggro, or 400 if the player is not high enough level to use the spell (Ex: Procs).

Rogean: Removed an overall spell cap of 400 aggro if player was not high enough level for the spell. This is instead capped per SPA Above.

Rogean: Bards are now capped at 140 aggro per song/spell/proc in all circumstances.

Rogean: Various spells in our database had erroneous bonus hate values that should not exist in any of our eras. The code handling that is now removed. This affected various spells in the Tashan line and Ykesha proc.