Marc Laidlaw had a number of novels published before and after going to work for Valve and doing the Half Life thing.
"The Third Force" novel and the associated game "Gadget" are probably not well known - but if you liked Myst you might like them. It's a bit more of a visual story than a puzzle game - a bizarre psychological/psychedelic story with stunning for the time graphics (1993 or 1997 depending on the version).
"The Third Force" novel and the associated game "Gadget" are probably not well known - but if you liked Myst you might like them. It's a bit more of a visual story than a puzzle game - a bizarre psychological/psychedelic story with stunning for the time graphics (1993 or 1997 depending on the version).