fix game does not initialize when OS runs for longer than 30 days or so.

Special thanks to Yshxod for having the patience and debugging the game with me!

(cherry picked from commit a04a1b697b742c0fbf1c7c4bf032bba5b304b56e)
fix typo in english translation

(cherry picked from commit 1e359bddf9cf5784facc4bb688c9f1918672c7b2)
fix typo in documentation (#1023)

(cherry picked from commit 1ed6521565a061a60895ab7d82d923ab5ef74a54)