it runs in flash or something, which is not as fast as just writing a shooter/platformer in pure C/C++. I have written some platformer games myself (even an RTS game) and i get better performance on them compared to this HL 2D game.
Yes, this game IS Flash. It should be better if they made it with native code.
btw, you don't need steam to run this game. after downloading it with Steam, you can just backup all the files in your "c:\program files \steam\steamapps\your@email.com\codename gordon" folder with CDRW.
and if your computer is slow don't even think on playing this game
lol, it does wicked bad on my computer, but i play it on my school comp and it works great pretty decent computers here. nice school wide wireless T1 connection...nice. who does school work at school newayz?