1 - Fallout 2
Platforms:
PC (Microsoft Windows), Mac
Released on Oct 29th 1998
2 - Fallout
Released on Sep 30th 1997
4 - Giants: Citizen Kabuto
Platforms:
PC (Microsoft Windows), Mac
Released on Dec 06th 2000
5 - Freedom Force
Platforms:
PC (Microsoft Windows), Mac
Released on Jan 09th 2002