I was wrong. Playing without Steam makes the game playable but there's still lag, just not as bad. I'll keep trying things.

I found out where the problem is coming from. It's Steam that's the problem. I ran it from the exe file and had absolutely no problem. Maybe I should reinstall Steam.

Also the information requested in https://forums.factorio.com/viewtopic.php?f=7&t=68653 might be useful.


I do not use any mods. I do not use multiplayer. I have the problem with new games I start, so it can't be a problem with factory size. It slows down my whole computer when the game is ...

Zavian wrote: Fri Apr 03, 2020 8:56 pm Also the information requested in viewtopic.php?f=7&t=68653 might be useful.

The UPS and FPS are in the 20's and 30's. This happens even when I start a new game so it's not because of a large factory.

I have been playing Factorio for many, many hours with no problems. All of a sudden I started getting a lot of lag during play. I ran CCleaner and that seemed to fix the problem. Then I accidentally closed the game without going through the exit procedure. Now it's lagging again. I've tried running ...