This is for very powerful 64 bit pc otherwise even if you have a 64 bit pc you may lag or crash quite often. If you think your pc is below average get the low res version it is much more optimized and thus have less lag. But this one have better graphics.
Fixing style that this version is old & outdated. Do not download this early version, as you will find no servers for it. Current version is Full Invasion 2 v0121 released December 25th, 2014. This is a multiplayer only modification.