My experience so far
1.Start up the game
2.Notice the game defaults to 4:3 800x600
3.Well I'll change that later in the options menu
4.Skip intro all good so far
5.Do you want to play the tutorial ?
6.Yes,I do.
7.Loads up the level then crashes....
8.ok maybe it's a one time bug
9.open up the game again
10.go to settings menu to change the resolution
11.notice the V-sync option off but the game still runs at 60 fps locked ?
12.Load up the tutorial
13.Then crashes.....again

Specs(pretty low but I don't care :)
Windows 8.1 pro
Intel Core 2 Quad 4 x 2.4 Ghz (4 cores 4 threads)
ATI Radeon HD 3850 HIS Custom Cooling 512 Mb Vram(core clock 820Mhz Mem clock 1020 Mhz OC of course)
4 Gb of kingston 800 Mhz RAM
And i'm running it off a 320 Gb sata drive form WD

EDIT:
Changed to Windows 10 PRO and exchanged my GPU for a GTX 650 MSI v1 1 GB DDR5
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Now it doesn't even boot up :D

EDIT 2:
After some reinstalls I got it work just fine on medium-high,with 60+ fps

My experience so far 1.Start up the game 2.Notice the game defaults to 4:3 800x600 3.Well I'll change that later in the options menu 4.Skip intro all good so far 5.Do you want to play the tutorial ? 6.Yes,I do. 7.Loads up the level then crashes.... 8.ok maybe it's a one time bug 9.open up the game again 10.go to settings menu to change the resolution 11.notice the V-sync option off but the game still runs at 60 fps locked ? 12.Load up the tutorial 13.Then crashes.....again Specs(pretty low but I don't care :) Windows 8.1 pro Intel Core 2 Quad 4 x 2.4 Ghz (4 cores 4 threads) ATI Radeon HD 3850 HIS Custom Cooling 512 Mb Vram(core clock 820Mhz Mem clock 1020 Mhz OC of course) 4 Gb of kingston 800 Mhz RAM And i'm running it off a 320 Gb sata drive form WD EDIT: Changed to Windows 10 PRO and exchanged my GPU for a GTX 650 MSI v1 1 GB DDR5 . . . . . Now it doesn't even boot up :D EDIT 2: After some reinstalls I got it work just fine on medium-high,with 60+ fps