Zones

This page lists zone info and the changes made to zones in PD2 relative to the vanilla game. For info about new zones, see Maps.

General
Regular monsters have a monster level equal to the level of the zone they're found in and champion/unique monsters have a monster level that is +2/+3 higher than that. A monster's level determines which treasure classes it can drop items from. Monsters drop items with item levels equal to their monster level, which influences the affixes and sockets those items can get.

Non-Level Changes

 * The 3 red portal zones in Act 5 (Abaddon, Pit of Acheron, Infernal Pit) have had their density increased by 40-50%, and Mausoleum & Crypt have had their density increased by 9%
 * The Maggot Lair and Arcane Sanctuary in Act 2 have wider pathways
 * Lower Kurast no longer has super chests due to their mismatched risk/reward

Zone Levels

 * Many zones have had their zone level increased
 * Zone levels are now included after the zone name in the upper right corner

Level 85 Zones (including immunities)
Level 85 zones are the zones in which the highest level items (TC 87) can be found from both champion and unique monsters since 85+2 and 85+3 are both at least 87. This means the highest level items can also be found in level 84 zones from unique monsters.

Many zone levels were increased to 85 so there are more endgame places to farm. Keep in mind that some zones are still worth farming even if they aren't level 85. Even if all items can't be found within lower level zones, they may have other advantages such as higher monster density, fewer immune/resistant monsters, more monster types that have better drop chances for valuable non-equipment items like runes, or the zones themselves may be closer to waypoints so they can be cleared faster. For example, both the cow level and Arcane Sanctuary are quite worthwhile despite being level 81 and level 79.

The following chart lists all level 85 zones with the amount of monster types in those zones that have immunities. Some monster types have multiple immunities and contribute toward the amounts in multiple columns. Unique monsters may still have other immunities since they have random bonuses. For example, "2 + 1" means there are 2 normal monster types that spawn with immunities and 1 super unique pack that spawns with immunities.

These immunities haven't changed in PD2 so the Amazon Basin wiki has more comprehensive color-coded resistance/immunity charts for each zone.