Did it again (0.12.33 steam):

Im not really sure how another app can cause a memory leak.

I noticed though I left the game going (not the menu) for 4 hours came back and it's sucked up 12GB. This was on a new game (attached SS).

It is locking the computer when I walk away (log in screen), could this be an issue?

Attached, although its happened on more than 1 save.

Still happening on 0.12.31

Also noticed it causes my pagefile to blow out to 44GB and fill up my hard drive.

How long did you leave it running for? Did you test with the Steam version?

Attached

Ok, tried 0.12.30, happened again. Didn't get a screen shot this time though as it crashed out.

Same process, load a game, played for 5 minutes, quit to title screen, left it open when I went to bed.

I don't really want to "enable experimental updates in Steam".

Is 0.12.30 going to be released as stable?

This bug seems to happen every time which causes all my other open programs to also crash. Quite annoying.

Its installed through Steam, should it not update automatically?

There seems to be a memory leak when the game is left for a long time.

I started Factorio, loaded a save game, played for about 5 mins, quit to main menu, and left my PC for about 2 hours. Came back and Factoria was using 12GB RAM. Happened twice.