IRE is an attempt to create a cross-platform computer role-playing-game engine similar to Ultima 6 but with more modern features such as rooftops, special effects and Ogg-vorbis music.
The engine is BSD licensed.

The engine runs in 640x480 at 15 bpp upwards. It is controlled by scripts which are compiled into interpreted code for extra portability.

License: free

Additional System Requirements:

• Allegro graphics library
• NASM or Alogg (if you want to recompile)