LogFAQs > #977088842

If you aren't careful, you'll end up playing Factorio 20 hours a day. It's not a game people have any difficulty racking up significant playtime in, especially once mods come into the mix. A typical first vanilla playthrough is 30-50 hours, but the bulk of the game comes in what you do after "beating" it, whether that's megabasing, challenge runs, mods (several of which each take 500+ hours to beat), or just building a raycasting engine or video codec for funsies. And all of that time is spent solving engineering, logistics, and optimization problems that are right up your alley from what I can tell about the way you like to think.

If you want a taste of what the game's like, it's got an excellent demo. Give it a shot. You've got nothing to lose except time that you're looking to kill already.

Also, there is multiplayer, but that's more a "find a few friends to play with" sort of deal than a "you're surrounded by other people" one.