Like Logic World, but a guided course in your browser
Logic World is a first-person sandbox simulation game about digital logic by Mouse Hat Games, in Early Access on Steam since October 2021 for Windows, macOS and Linux. You build circuits in a 3D world from 30 unique components, from math circuitry and displays up to your own computer, alone or with friends in multiplayer, and share creations on an online hub. If that is what brought you here, digiwleea is a free, in-browser alternative with a different angle: you build a computer from the transistor up.
What Logic World is good at
It is the most physical way to play with logic: you walk around your machines, build in 3D with fast building tools, simulate big circuits at thousands of updates per second, and learn the basics in a demo world with tutorials and challenges. It is moddable and DRM-free, and its developers plan to add a campaign mode during Early Access. (digiwleea is an independent project, not affiliated with Mouse Hat Games.)
How digiwleea is different
digiwleea is a guided course rather than a sandbox, and it runs in the browser with nothing to install; the lab and the first act are free. It also starts lower down: you build NOT, NAND and the other gates from CMOS transistors, then adders, latches, registers, RAM and control logic, and the simulator checks every part against its truth table before you reuse it. The 40+ levels end with a working 8-bit CPU that you program in assembly, with theory lessons and an AI tutor (Wleea) alongside. Logic World is the better pick for free-form building in 3D with friends; digiwleea is the better pick for a step-by-step path that explains every part.
| Logic World | digiwleea | |
|---|---|---|
| Price | Paid (Steam, Early Access) | Free lab and Act I; Premium for the full course |
| Runs in | A downloaded game (Windows, macOS, Linux) | The browser, nothing to install |
| Style | First-person 3D sandbox, multiplayer | 2D circuit lab and guided course |
| Structured path | Demo world with tutorials; campaign planned | 40+ level course + theory lessons |
| Smallest building block | Its built-in components | CMOS transistors (build the gates too) |
No sign-up is needed to start: open the lab and place your first transistor, or read the free theory course. The account (and the AI tutor) are optional.
See for yourself: build a logic gate from transistors in the simulator, then follow the path from sand to an 8-bit CPU.
Open the digiwleea lab →Frequently asked
Is digiwleea a good Logic World alternative?
Yes, if you want to understand digital logic from the ground up. digiwleea is a free, in-browser simulator with a guided 40+ level course where you build every gate from CMOS transistors and work up to a real 8-bit CPU, with an AI tutor to help.
Is digiwleea free?
The sandbox lab and the first act of the course are free and need no sign-up. An optional account adds the AI tutor and cross-device sync; the full course and expanded AI tutoring are included in the monthly or annual Premium subscription.
Do I need to install anything?
No. digiwleea runs entirely in your browser, on desktop or mobile, and works offline once loaded.