Build a Meridian4 Megabundle http://groupees.com/bamm
Lots of games, 3 game minimum for 1$.
Wow, what a selection! I'll be checking here for recommendations since hardly know any of these titles. And I only have two of them already, Nikopol and Robin Hood. Looks like a real bargain, thanks!
Well lots of mediocre stuff at best.
As FNord said stay away from Stalin. Tank Universal has also quite some compatibility problems, unfortunately, since it's a nice Tron-Style Shooter.
as for the recommendations
Chrome + SpecForce are OK SciFi Shooters, you can try them but if you don't liking them quickly you can stop playing because it won't change from beginning to end. BTW Chrome has a really annoying stealth mission.
Crash Time II is also not that bad, worth a try.
The (arguably) good stuff ;)
PAM is very nice Post-Apoc Racer, nothing dramatic but easy fun.
Chosen Well of Souls, does not look like much but has very good Hack n Slash with a very free camera and lots of neatly scripted events and it refuses to just throw treasures at you, so add. you have to manage you resources, too. Underrated GEM IMHO.
Deadly 30 is an interesting mix between base defense, survival and run n gun. You need to scavage put a emphasis on resource management, too.
For these 3 are favs, but I already have them all.
Oh, and Scratches is a must if you are into horror adventures. It's 1st P. Myst-Style.
The rest is pretty much neglectable.