Note: This applies only if you own the original disc and the serial number is legally yours.

Because the official activation servers are dead, preservation communities have created cracks specifically for version 1.0.0.0 that bypass the serial number check. Here is how to do it ethically:

Warning: Do not patch the game to 1.0.4.0 after this—the crack will break.

If you own the disc but lost the manual or sticker, try these recovery steps for version 1.0.0.0:

A: Yes. Steam version is patched to 1.0.5.0+ and uses Steam DRM, not SecuROM. Serial numbers are not interchangeable.