Z80-Pascal will be a cross-platform Pascal compiler for Z80 based devices, such as MSX, Spectrum-ZX, etc. Despite that it will be designed for old Z80 home devices (i.e. retro-programming) it will be useful for modern devices too.
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.