Steam bug fixed

After the last update, there was an error in the communication with Steam. Game saves were not loaded into the Steam cloud, and achievements, statistics, and leaderboards were not transferred to Steam.

The problem has now been fixed. You should now be able to use all Steam features again.

Sorry for the inconvenience.
If there are still problems, please contact us in the Steam Community.

Also added a "friends" highscore list.