AFnord: I wonder if the good people at GOG can fix that game. It is notoriously unfriendly to modern OSs, with a certain graphical effect (when cultists shoot) crashing the game. It is playable in a virtual machine running Win 98 though (but not compatibility mode).
Even then, I think Games workshop might be the big stopping block here. Chaos Gate was based on second edition Warhammer 40 000, and I wonder if they would really want to promote the game (40k is at 5th, soon 6th edition now). Also, it was released by SSI, and unless THQ currently holds the licence to the old SSI titles, that might also be an issue, as THQ currently has exclusive rights to the 40k licence in video game format.
Does anyone know who actually does own the rights to the old SSI titles these days?