In preparation for the release of our early access build of the game through GamersGate. We are releasing some system specifications which should allow you to play the game with no noticeable lag.
You can of course play with lower specs, and would love for those people to give us feedback about performance.
Our recommended specifications based on our tests so far are as follows:
Windows 7 - 64 Bit
Intel Quad Core 3.1 GHZ
4 GB Memory Minimum, 8GB Recommended
GeForce GTX 660 2GB Video Ram
Now these specs are not final, and will be much lower on release. But these are the specs we feel confident posting regarding playing this version of the game.
A Discussion group on Steam has been started regarding gameplay specs and feedback for system performance. Please go there to lets us know how things are for you.