I don't like First Person Shooters (even the original Wolfenstein gave me motion sickness, and I don't have great motor skills), that's why I forgot about those.

I've always liked turn-based strategy games, or real time strategy games (at medium or slow speeds, I get destroyed on online matches), puzzle games, point-and-click graphic adventure games, etc... and I distinctly remember searching for those and not finding much back then.

I definitely need to give Linux another try, but I don't manage to convince myself to set aside the time (it might be a good investment, though :) )

Sid Meier's Alpha Centauri is a favourite of mine, not sure how easy it is to get a copy of these days though.

DEFCON, Darwinia: http://introversion.co.uk/

Wesnoth is a great turn-based strategy game and has an unusual amount of polish for a FOSS game.

SpringRTS is a really fun RTS, if you can look past the many bugs in the launcher/lobby: http://springrts.com/