Factorio has . None. Zero. You can download the game, copy the folder, and run it on any machine. So why isn't everyone just sharing the ZIP file?

You get a standalone .tar.gz archive (no launcher required) and a Steam key. Updates are downloaded manually or via a small script they provide.

Factorio is an engaging and challenging game that offers a unique blend of strategy, management, and puzzle-solving. With its deep crafting system, factory building, and resource management, Factorio is a game that will keep you entertained for hours on end. And with the availability of Factorio Linux free download, you can enjoy the game on your Linux system without breaking the bank.

The Linux version fully supports the Factorio Mod Portal. You can overhaul your game with mods like Space Exploration or Krastorio 2 just as easily as Windows users. Why You Should Consider the Full Version

But you don’t want to pay $35. Or maybe you just want to "test" it before committing.