Full game metadata
| Field | Value |
|---|---|
| Steam app type | game |
| Steam App ID | 4260720 |
| Live current players | 3 |
| SteamPulse tracked peak | 29 |
| Live count (today's peak floor) | 3 |
| Price | Free to play |
| Free to play | Yes |
| Discount | 0% |
| Original price USD | — |
| Current price USD | Free |
| Release date | Jan 16, 2026 |
| Developer | [r]labs |
| Publisher | [r]labs |
| Owners estimated | Not available |
| SteamSpy owner estimate minimum | 0 |
| SteamSpy owner estimate maximum | 20,000 |
| Review type | Very Positive |
| Positive review percent | 88% |
| Positive reviews | 51 |
| Negative reviews | 7 |
| Total reviews | 58 |
| Steam recommendations | Not available |
| Achievements | 42 |
| Average playtime forever | Not available |
| Windows support | Yes |
| macOS support | Yes |
| Linux support | Yes |
| Parent game | Not available |
| Store URL | https://store.steampowered.com/app/4260720/ |
Short description
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!
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 , Disassembly , Name tables , CHR , Sprites , Palettes , APU Channels , Controllers , 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 😅
Supported languages
English, Spanish - Latin America