Urban Chaos isn't bad. It's fast as hell with some nice fighting and a lot of timed stuff but little in the way of strategy.
Yikes, I'm pretty bad at time trials. But checking out the demo is a good idea, thanks!
I've played through that one already, and to tell the truth I didn't like it very much, but that was also due to the lack of a savegame function which I believe has been fixed in a more recent update. :)
Free Orion - its free - and inspired by masters of orion
I sank hours into it on my old system - though its a work in progress
Finding free games that are great isn't that hard; I bet it's easier than finding good ones for $3. I know it must sound kind of weird that someone is looking for a way to spend $3 when you can play all these cool games for free, heh. :D
Anyway, it's a common strategy game, right? I may take a look at it but it's not that likely that I will enjoy it.
The Legacy of Kain games ...
I already have all of these. I really like Startopia, btw, that's one of the few sim games that I actually enjoy, and short means good in my book. ;)
Anyway, thanks for all these suggestions, keep them coming!