I've played one, from here, that's a tank game which was quite fun.
Need to have a browse and see which ones look good...
I guess I'm kinda in a different time-zone to most of the regulars, but I'm an insomniac so I have a lot of free time.
It'd be well good to check out the Freeware multi-player stuff some time!
[ed]
btw, doubler -if ye read this- I found a server for Left 4 Dead that has a chat command to play as an infected. Apart from being amazing fun, it's good for practising as the bad guys.
And a (hard!) map for playing as a Hunter. I've been doing pretty well in Vs. mode since discovering these.
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