The AvernumDemo.exe file you have requested: Official Demos / Avernum: Escape From the Pit v1.0 Demo - 153.91mb is not available. Perhaps try browsing all files for the game Avernum: The Great Trials Trilogy and upload any files you want to share or are missing. This is the only information we could locate:
Avernum: Escape From the Pit is the first chapter in an Indie fantasy role-playing saga, the tale of desperate exiles and their battle for survival and a land to call their own. This is the first version of the demo for Avernum.