Here's one you might like, then:
http://www.enemynations.com/
Old, free download, some random AI problems that seem system-related (Not everyone has them) and...Number of players only really limited by the computer. Gameplay is fun, steep learning curve, graphics are good. Enemy AI does pretty good - Prepare to be tromped, your first few games.
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If I only could remember half the things I'd forgot, that would be a lot of stuff, I think - I don't know; I forgot!
A* E* Se! Gd! $-- C-^- Ai** M-- S? Ss---- RA Pw? Fq Bb++@ Tcp? L++++
Some of my webcomics. I've got 400+ webcomics at Last count, some dead.
Sig updated to remove non-working links.