Assembly Line 2 Mobile Version

There is a version of Assembly Line 2 that started life on a phone, and in November 2023 the developer Olympus put it on Steam as Assembly Line 2 Mobile Version. The pitch is the same as the desktop original: raw materials get pumped out of starters, ride rollers, and turn into things worth more money. The difference is the frame around it. Everything here is tuned for short sessions and a smaller board, which makes it less an engineering project and more a pocket factory you check in on.

What the loop feels like

You start with a starter, a roller, and about $5,000. Copper flows to a seller and becomes a sad little trickle of income, until you unlock a wire maker and suddenly the same copper sells for several times as much. You route, you compact, you log off. You come back to piles of money and a floor expansion that costs $20,000, so you redesign the line tighter. That's the line. Then missions arrive, sell 500 circuits, sell 600 fans, and each one hands you something that actually matters, like another starter beyond the hard cap of two. You tear half the factory apart to fit the new machine in. That's the loop.

How it actually works

Processing is the whole economy: melters handle liquids, crafters in two marks combine parts, and the blueprint tree climbs from circuits and heat sinks to computer chips, power supplies and servers, ending at the famous endgame goal of assembling an AI robot, a project that costs in the region of a billion dollars to fully unlock. Starters cap at two active machines at first and expand to ten or more through mission rewards. Every building has its own speed and cap upgrades, so income is a function of layout quality, not just time.

Honest criticisms

The PC port carries its phone origins proudly and unfortunately. Community consensus on r/AssemblyLineGame and the Steam page is that everything is mouse-driven with almost no keyboard support, which feels clunky on a desktop where keyboard shortcuts would be natural. Once routing is optimal, the late game is mostly waiting. Hardcore automation players also find it shallow next to the genre heavyweights; it is closer to an idle game with factory dressing than a full logistics sandbox.

Playing it today

Paid, on Steam, for Windows, macOS and Linux. The mobile originals live on phones under a separate listing, and our platform check could not verify the same developer behind those store entries, so we link only the desktop release here. For the non-mobile version of the game, see our Assembly Line 2 entry.

Verdict: a charming little conveyor economy with real craft in its blueprint arc, held back by controls that never quite left the touchscreen behind. If you want factory incremental comfort with a phone-shaped time budget, it fits. If you want depth, the desktop greats feed you better.