Upon first launch, the Launcher application calculates the game files' checksums, for the purpose of keeping track of potential file corruption. This can take up to a few minutes, during which your computer's processor and memory will be under a high load. This will only happen on the first launch, and afterwards you will be able to play normally. We apologize for the inconvenience.
Do you have more questions?

Didn't find the answer you were looking for?
We will do our best to respond as quickly as possible. On weekdays, we normally reply within 24 hours, but during weekends we can only respond that quickly to high-priority, time-sensitive cases. All other cases will be looked into first thing next week.
Contact us

Want to get help and maybe make some new friends?
We’ve got a great community here on GOG, which is always eager to help out. Please make sure not to share private data on public forums, though!
Ask our community