i played factoria about 60hours without problems.
NOW after 2 or 3 months i want to play again but i cant start a new game or old game.
I tried to reinstall the game 2 times, but it dont work again.
i also tried different versions from fctorio (right click on game and then Beta prog.) but it also dont work.
here some screens:
so the norml version without betaa Prog