This game is from my childhood, and I loved it back then, and I still do. However with latest hardware, and operating systems, it has rendered this epic game completely unplayable (laggy mouse, low resolution, and crash to desktop every 5 minutes). This should have been re-worked, and re-patched, before being allowed on to Steam.
As mentioned on even the positive reviews, Desperados does not work on Windows 7/8. At least, not very well. I have reported this to the developers, but my thread(s) were completely ignored, and we have never received any acknowledgement that these compatibility issues even exist, even though they clearly DO. My current issue is a complete freeze up of the game after 5 minutes, followed either by a crash to desktop, or a BSOD.
It's a BRILLIANT game, but you will likely be put off of it by the performance issues before you have a chance to appreciate it's brilliance. Save your money, and just pray that the developers fix the issues with W7 and W8.
Update 1st Dec 2013: There is a "directdraw" fix available in the forums which fixes mouse lag, however the crashing is still ongoing. It seems that patching has stopped for this game already.
Update 25th Feb 2014: There appears to be an unofficial work around for the crashing issues available in a stickied forum thread. This is not developer supplied, and edging on the side of caution, I would prefer NOT to download random ".dll" files off of the internet - especially those hosted on rapidshare. I am unlikely to ever try the fix for myself, and the "Negative" review stands, as long as the developers fail to patch these aweful compatibility problems.