Factorio Review

The joke about Factorio is that people lose whole weekends to it, and the reason is structural rather than psychological. Every bottleneck you fix reveals the next one, and the game never hands you a solution, only a new ingredient that invalidates the layout you just finished building. Wube's real achievement is underneath the fun. A late game base moves hundreds of thousands of belt items, inserters and assemblers, and the engine holds sixty updates per second on a laptop while doing it, with deterministic multiplayer on top so four people can build in the same factory without desyncing.

That is genuinely rare engineering, and the developer blog documenting how they did it teaches more than most computer science courses. The presentation is purely functional: flat top down sprites, a colour language that tells you at a glance whether a belt is starved, and no attempt at beauty anywhere. There is no story beyond a crashed engineer and a rocket, and the biters that attack your pollution cloud are the weakest system in the box, a combat layer a large share of players simply switch off before starting.

None of that is the point. Factorio invented a genre, and Satisfactory, Dyson Sphere Program and Shapez are all replies to it.