Will be cool if in game we can play with friend on same pc and half screen mode. What about this idea? Sorry for my English
First off, your English is easily understandable. Second, I agree completely with this! I'm sick and tired of games coming out with Multiplayer but no split-screen support.. (Or the console version has it but PC's are left in the dust) I would also like to suggest multi-monitor support for multiplayer as well, since two controllers can easily be plugged in and I don't see why each player should be forced to the same monitor if you have multiple.
Your English seems fine, its fairly good and it can be easily understood. A split screen mode is acceptable. The main bulk of the game's problems with performance are from physics calculations. Rendering in split screen is something most PC's can handle, and we need only compute physics just once.