Steam game

EmuDevz

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!

Free January 16, 2026

By [r]labs

Windows macOS Linux
View on Steam
EmuDevz - [r]labs. Popular. Released January 16, 2026
Screenshot of EmuDevz gameplay showing in-action mechanics Screenshot 2 of EmuDevz - additional gameplay view Screenshot 3 of EmuDevz - more gameplay footage Screenshot 4 of EmuDevz - final gameplay screenshot

Overview

About this game

A game about building emulators!

In the year 32767, the world suffered a massive cyber attack which destroyed the entire Internet. Since then, you and an online friend are trying to understand the sparse pieces of documentation about the NEEES, an ancient game console released in 1983. With your programming skills, you'll have to build an emulator that runs those old games, helping preserve video game history.

Key features

  • Full 🕹️ NEEES emulation guide from scratch, in JavaScript

  • Interactive 🔨 6502 Assembly tutorial

  • Implement 🧠 CPU, 🖥️ PPU, and 🔊 APU in any order

  • Play 👾 homebrew games to unlock ROMs

  • 🧪 Unit tests, video tests, and audio tests are provided

  • 💻 Unix-style shell and code editor

  • 🎶 Original retro-synthwave soundtrack

  • 📃 Included documentation and in-game dictionary

  • 🗣️ Fully localized into English and Spanish

  • 🐞 Powerful debugger with Memory Viewer, DisassemblyName tables, CHR, Sprites, Palettes, APU ChannelsControllers, and Emulator Logging

  • 🔭 Free mode to use the IDE to develop emulators for other systems!

This game requires programming knowledge. If you can't write code yet, turn back while you still can 😅

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