Co-op Half-Life 1 !!
 

I found a mod on steam called Sven Co-op, it allows you to play half life 1 on co-op mode. you don't need HL1 to play and its 100% free. so if anyone wants to play let me know :D

how is no one interested in this.... half life 1 is still one of the best games ever.

I might be interested but my computer is disassembled right now and will not be reassembled until this weekend :(