
The Farmer Was Replaced
OfflinePaidest. 2023★4.8 (526)Program a drone to automate an entire farm. Plant, harvest, optimise — then watch your code outgrow you.

TIS-100
OfflinePaidest. 2015★4.8 (642)Reverse-engineer a corrupted parallel computer by writing assembly for its tiny nodes. Zachtronics’ cult open-ended assembly puzzler.

EXAPUNKS
OfflinePaidest. 2018★4.8 (401)It’s 1997 and you’re a hacker with a disease only an illegal procedure can cure. Write EXA agents to infiltrate machines and steal what you need.

Opus Magnum
OfflinePaidest. 2017★4.8 (564)Build and program elegant alchemical machines, then optimise them for cost, cycles and area. The most approachable Zachtronics.

Turing Complete
OfflinePaidest. 2021★4.8 (612)Start with a single NAND gate and build your way to a working CPU — then write assembly for the computer you designed.

Scratch
OnlineFreeest. 2007★4.8 (5400)The classic block-based creative coding platform where kids build games, stories and animations by snapping instructions together.

Screeps: World
OnlinePaidest. 2016★4.7 (318)An open-source MMO RTS where your units are driven by JavaScript you write — and the world keeps running 24/7, even while you sleep.

SHENZHEN I/O
OfflinePaidest. 2016★4.7 (528)Build circuits and write microcontroller assembly to make gadgets for a shady electronics firm — datasheets, debugging and all.

7 Billion Humans
OfflinePaidest. 2018★4.7 (388)Program a whole crowd of workers with one shared algorithm and watch them move in perfect, parallel lockstep.