Game description: I made this game great detail, the steps, the characters, everything, even if not see, I create zombies, headcrabs, still did not make those big bugs that make a wave, not the vortigrounds (I think they are ... (more)

Game description:

I made this game great detail, the steps, the characters, everything, even if not see, I create zombies, headcrabs, still did not make those big bugs that make a wave, not the vortigrounds (I think they are called so) soon makes a sandbox to create your own 2D games with the Source engine!. Valve created games list:
Cs2d, Css2d, hl.
Valve upcoming games:
hl2, tfc, tf2, gmod, dod, dods, portal, l4d, l4d2, cscz