KOFFE is a 2D fighting game engine compatible with KOF'91. Written in Object Pascal, it's very configurable: it's possible to change all character definitions, backgrounds, sounds and graphics.
PJPlib is an easy to use 2D game development library for the Pascal language. It aims at compatibility with both Delphi and Lazarus.
It uses JEDI-SDL and OpenAL as core components for graphics and sound.