[TheTacoMerchant]

Well, to be technical, it says in the Factorio about page that it's heavily inspired by a Minecraft mod called Buildcraft, so you could trace the genre back to there.

[ejj28]

That's super cool, I never knew this but I always thought that it was very similar to Buildcraft.

[slim]

minecraft was inspired by infiniminer

https://notch.tumblr.com/post/227922045/the-origins-of-minec...

[Kiro]

Buildcraft is a Minecraft mod that is completely different from the vanilla game. Saying Factorio can be traced back to Infiniminer is a stretch.