Intel Core 2 Duo 3.06ghz (2 core) 4gb ram GeForce 9600 gt 512mb Multithread: on Shaders: no Lights: low FPS-lock: 30 Resolution: 1024x768 FRAPS Indoors at night walking (no lightning effects) fps around 15~22 Indoors doing nothing at night 22-23 Outdoor at day light walking: 15~21 Outdoor fighting a zombie at day light : 15~21 Outdoor fighting 3+ zombies at day light: 10~18 Running at day light near zombies 10~15 @Edit I ran the game in compability mode. With steam community disabled the game runs with a greater fps, but no playable though I have a question, Why in the earlier versions of the game, it is fully playable with the same specs? ( i am saying of 2.9.9.17 and something.) Sorry for my english.