GemRB (Game engine made with pre-Rendered Background) is a portable open-source implementation of Bioware’s Infinity Engine.
It was written to support pseudo-3D role playing games based on the Dungeons & Dragons ruleset (Baldur’s Gate and Icewind Dale series, Planescape: Torment). It should run on GNU/Linux, Microsoft Windows, OS X, possibly other UNIX derivatives and more. It is licensed under the GPL.
Changes:
Changes in version 8 of 0.7.2: i) Built openal and switched audio to using that. This fixes the volume controls.