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).

Packages are available for the following releases:
Ubuntu 13.10:
Ubuntu 14.04: 0.8.2-1~getdeb1
Ubuntu 12.04:
Ubuntu 14.10: 0.8.2-1~getdeb1
Ubuntu 12.10: 0.8.0-1~getdeb1
Ubuntu 13.04:

Package downloads per version:
Version 0.8.0: 1
Version 133
Version 0.8.2: 377

Install the application manually with the following command:
sudo apt-get update && sudo apt-get install gemrb

Uninstall the application with the following command:
sudo apt-get remove gemrb