Shapes have up to four layers; upper layers are drawn smaller. Cutters, rotators and painters act on every layer. A Stacker puts its TOP IN shape onto its BASE IN shape: parts that do not overlap merge, overlaps add a layer. A Mixer combines two pigments (red + blue = purple, red + green = yellow, green + blue = cyan, all three = white).
Desktop: drag to build · R rotates · T switches rotator direction · Shift changes route · right drag erases · middle drag / WASD pans · scroll zooms · Ctrl+Z undoes · number keys pick tools.
Logistics: a Tunnel entrance sends items underground to the next exit facing the same way up to 5 tiles ahead, passing under anything in between; after placing an entrance the tool switches to Exit. A Filter learns the first item it receives: matching items leave forward (✓), everything else leaves to its right (✕); tap it with Pan to reset. Storage buffers up to 100 of one item and releases them forward. Miners placed in a row pass items along, so a chain of miners shares one belt.
Turning machines: a machine you just placed stays selected. Tap the round ↻ button beside it, tap the machine again, or press R to turn it a quarter turn; belts re-route immediately. With Pan selected, tap any machine to select and inspect it. Esc or choosing another tool clears the selection.
Touch: choose Pan to move the map. Choose a building to place or drag a route. Two fingers always pan and zoom. Rotate and Undo sit above the tool shelf.
Machines: green arrows with square icons mark SHAPE IN, amber arrows with drops mark PAINT IN, and blue outward arrows mark OUT. Tap a machine with Pan selected to inspect or rotate it. Cutter outputs forward (A, right half) and to its right (B, left half); unconnected outlets discard unused halves. Connected outlets back up when blocked.
To start over, open ☰ → Restart game. Your factory saves itself automatically on this device.
Removes every building and returns the mural to panel 1. Undo brings this factory back until you reload.
Restart from panel 1? Every building and all mural progress will be cleared.
An empty world. A whole factory to build.