
Code: Terraform
Write scripts that run rovers, power grids and drone fleets on a frozen planet, and watch your colony grow as the world starts answering back.
If PlayASM scratched a relaxing and retro itch for you, keep reading. These games keep things close enough to feel familiar.
Start with a single logic gate and puzzle your way up to a working CPU. Turing Complete walks you from NAND gates through arithmetic, memory and assembly until a computer you built from scratch runs code you wrote for it. Then the sandbox opens and you can build whatever you like, screens, sound and all.
Relaxing, Retro
Build circuits from microcontrollers, memory and logic gates, then program them in a tiny assembly language to meet real spec sheets. A demanding puzzle game about doing more with less, set at an electronics company in Shenzhen. When the code fights back, there is always solitaire.
Relaxing, Retro
A broken computer from the 1980s lands on your desk, and the only way to fix it is to write assembly code by hand. TIS-100 turns real low-level programming into puzzles: a dozen instructions, tiny memory, and over 45 challenges that are solvable, just not easily. When your program finally runs clean, the satisfaction is enormous.
Relaxing
Virtual Circuit Board is the sandbox drawing-based logic simulator where you can build, program, decorate, and simulate anything from simple monochrome circuits to complex and colorful computers. Play with digital logic in this sandbox-only experience.
Relaxing, Retro
A single bit of computer memory became sentient and decided to escape from digital into the real world. Explore RAM, modify bytes and hack machine code and CPU registers to set it free.
Retro
A game about building emulators! Implement your own NEEES core in JavaScript, get instant feedback with unit/video tests, build the graphics unit in real time, learn 6502 assembly, debug test ROMs, and have fun with the included homebrew games!
Relaxing, Retro
Retro Gadgets is a sandbox where you build, code, and customize gadgets inspired by old-school electronics.
Relaxing, Retro
Mnemonimov is a fantasy console where you program in ASSEMBLY like in the 80s. Build anything from games to operating systems and understand how computers work at a low level.
Relaxing, Retro
Step into a time portal to 1993. While your friends are battling it out in the latest FPS adventures, you got the opportunity to learn the newest trend, programming. Turn on your CRT monitor and learn to write code, compete with others in challenges or write minigames.
Retro
Program a little office worker to sort, add and shuffle boxes, one level at a time. It looks like a cute puzzle game about corporate life, and then you notice you have been writing assembly logic for an hour. Genuinely funny, deceptively deep, and the moment your little worker finally runs your plan without a hitch is a real payoff.
Relaxing
SIC-1 is a single-instruction programming game. Neglect your personal life in pursuit of promotions and vague assurances of job security! Optimize your programs to rise to the top of the leaderboards! SIC Systems thanks you for your hard work! Now please return to your desk.
Retro
Invent a new computer! Logic World is a first-person sandbox simulation game that's all about digital logic. Play alone or with friends, design unique machines, build up layers of complexity, and experience the joy of circuits!
Relaxing

Write scripts that run rovers, power grids and drone fleets on a frozen planet, and watch your colony grow as the world starts answering back.

Program a crew of tiny robots to thaw a frozen planet and turn it into a living world.

Build the most advanced operating system ever created! Can you master the fictional simulation language of this mind-bending machine?

Mix pixel particles into contraptions, from simple circuits to floods of sand, all at your own unhurried pace.

Snap together hundreds of parts into robots, factories or arcade machines, then teach them what to do with visual programming, alone or with friends.

Virtual Circuit Board is the sandbox drawing-based logic simulator where you can build, program, decorate, and simulate anything from simple…

Archean is a first-person engineering sandbox where physics does the judging.

SIC-1 is a single-instruction programming game. Neglect your personal life in pursuit of promotions and vague assurances of job security!

Retro Gadgets is a sandbox where you build, code, and customize gadgets inspired by old-school electronics.

Use real Python code to automate machines, robots, drones and more: Program self-driving vehicles; crack passwords; apply machine learning; automate…

Invent a new computer! Logic World is a first-person sandbox simulation game that's all about digital logic.

Wire LEDs, chips and a microcontroller on a 3D breadboard and watch your electronics come to life.

Write real code in a Python-like language to control one machine that copies itself. Then watch a thousand copies of your program eat a world.

ChipBuilder is a story driven puzzle game about digital logic.

Program a crew of tiny robots to thaw a frozen planet and turn it into a living world.

Write scripts that run rovers, power grids and drone fleets on a frozen planet, and watch your colony grow as the world starts answering back.

You've awoken deep within a research facility in a new, programmable robot body. You have holes in your memories.

You're a hacker with a terminal and four terrible scripts - time to rewrite them.

Mnemonimov is a fantasy console where you program in ASSEMBLY like in the 80s.

A game about building emulators! Implement your own NEEES core in JavaScript, get instant feedback with unit/video tests, build the graphics unit in…

Solve programming puzzles on a fictional computer with radio-based communication and unique limitations.

Use real Python code to automate machines, robots, drones and more: Program self-driving vehicles; crack passwords; apply machine learning; automate…

you are a game developer who writes game code according to the tasks assigned by the company.

Hard Chip is a 3D simulation/puzzle game about building processors focusing on realism.