Games like Factorio you can play in your browser

Factorio isn't on Foundplay, but these original games are about the same thing, free in a browser tab: build machines, chain them into production lines and keep scaling up. In Zombies Per Minute you grow a small outpost into an automated zombie-killing factory and keep the ammunition flowing, scored by zombies killed per minute. The Seeding lands you on a dead planet, where extractors and tracks run ore through Processors, Assemblers and Reactors to upgrade the Genesis Engine.

Solhex grows a space station from one hex: burners, smelters and constructors make plates, wire and data cards, belts link them into chains that keep running while you're out mining, and you defend the station from machine sieges. ScrapWorks Inc. is a top-down recycling factory where conveyor belts carry scrap between machines. Chimera Factory runs an assembly line of chimeras to raid a kingdom, and Hegemon's Reach has Settlers-style production chains.