Factorio Forums

This one time I come home and my roommate gets the door for me, saying "don't ask any questions". I say sure, I guess, and coming into the room he's on the PC, but I can't see the screen. Coming closer, I see he is playing Factorio, apparently for 3 hours prior to my arrival. He said he wanted to know what's so interesting about the game that I play it so much, and by the time I left for work next morning, he was still playing.