Great immerse survival shooter. In the same vein as the Fallout series but with much less hand holding (compared to Fallout 3 & NV). I installed the Stalker SOC Complete Mod 2009. This mod really takes advantage of newer PCs and keeps the game pretty vanilla but is a huge boost to graphics, sounds, lighting, and enemy AI. If you are a fan of Fallout and Half-Life check this game out.