If you're looking for extensions or modules that work with the 2E ruleset they'll be listed here.
Official Extensions and Modules:
TBD
Unofficial Extensions and Modules:
- AD&D 1E Extension, Tweaks some behaviors (ability bonuses, initiative dice, attack matrix to hits) for AD&D 1E style.
- Disable SingleWindow feature Extension (only used for Window7 and earlier systems with problems using navigation arrows in ref-manuals.).
- Franky's NPC Generator - AD&D 2E NPC Generator
- Frank's Pre-generated Characters
- OSRIC Classes Part 2
- Tomb of the Serpent Kings - Adventure Module
- Generic CoreRPG Modules - Community Modules
- CoreRPG - Community Extensions
- Sterno's Player’s Option crits, weapon vs armor to-hit automation, and more!
- Sterno's OSRIC - Races, Classes, non-Magic Weapons/Armor, Spells and Monsters
- AlterZwerd's OSRIC - Magic Items
- AD&D Options and House Rules - extension that changes some things in the 2E ruleset to more closely match the way things should be done in 1E and/or OSRIC.