It's also just a game. No one needs it to be productive.
Edit, ok actually looked at Mindustry. It looks fun, but it's also nothing like Factorio. Don't know why you brought it up.
Besides, even if Factorio isn't open source, it is available for Linux as a DMR free download. We should be supporting it.
Open source is more important for productivity software. Servers, Office Suites, Graphics and Game Engines. The game itself isn't as important for opensource, as a game company changing the play mechanics wont effect someone's income.
I spend too much time on lemmy: I immediately assumed your comment was a meta-joke about lemmy, since every post about a software has a comment about its foss analogue. But now I'm unsure whether you were serious or not.
Anyway it made me lol.