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New Game Alert: Starduino!
January 12, 2023 at 9:34 pm

Stephane Hockenhull (aka rv6502) released his first game on the Uzebox! Starduino is a port of the game of the same same from the Arduboy platform. It’s a 3D rail […]

New Game Alert: Hat Trick!
March 4, 2022 at 6:50 pm

Kilo just released his latest game! Hat Trick is a port of the famous Commodore 64 game. It supports one-on-one action with multiple difficulty levels. Check out the forum post […]

Game Update: Corrida Nebososa 2!
February 6, 2022 at 10:25 am

Kilo just released an update to the original Corrida Nebososa. In the main menu you can now choose between “Single Race” and “Championship”. Championship consists of 10 races of 9 laps each. […]

Game Update: Arkanoid!
January 30, 2022 at 10:18 am

Kilo just released an update to the classic Arkanoid with many improvement such a title screen, scoring and lives count. Check out the forum post and the wiki page for roms and all the details.

New Game Alert: Circuit Puzzle!
August 1, 2020 at 10:11 am

Artcfox just released his latest game for the Uzebox! Circuit Puzzle is an electricity-based puzzle game with 60 levels, divided up into 4 skill levels. For each circuit, arrange the tokens to […]

More News...

The Uzebox is a retro-minimalist 8-bit open source game console. It is based on an AVR 8-bit general purpose microcontroller made by Atmel. The particularity of the system is that it uses an interrupt driven kernel and has no frame buffer. Functions such as video signal generation, tile rendering and music mixing is done in realtime by a background task so your game can easily be developed in C. The design goal was to be as simple as possible yet have good enough sound and graphics to implement interesting games. Emphasis was put on making it easy and fun to assemble and program for any hobbyists. The final design contains only two chips: an ATmega644 and an AD725 RGB-to-NTSC converter.

Current Features
  • Low parts count and cost: The system is made of only two chips and discrete components.
  • Interrupt driven kernel: No cycle counting required, sound mixing and video generation are all made in the background.
  • 256 simultaneous colors: Accomplished by using a simple weighted resistor video DAC.
  • 5 channels sound engine: The sound subsystem is composed of 3 wavetable channels, 1 noise channel and 1 PCM channel mixed at 15.7Khz.
  • MIDI In: With a music sequencer, allows the creation of music directly on the console.
  • Retro controllers: The joypad inputs uses standard NES/SNES controllers interface.
  • SNES Mouse Support
  • SD/MicroSD card interface
  • Expandable: I/O lines and peripherals are still available, like the UART and SPI port for one to experiment.
  • Emulator: A fully cycle-perfect emulator (CUzebox)
  • Gameloader: 4K Bootloader that loads and flash games stored on SD cards!
  • API: Develop games using an API that provides multiple video modes, sound driver and more.
  • Open Source: The software and hardware design are totally free and licensed under the GPL.

CPU: ATmega644 microcontroller
Total RAM: 4K
Program Memory: 64K
Speed: 28.61818Mhz (Overclocked)
Colors: 256 simultaneous colors arranged in a 3:3:2 color space (Red:3 bits, Green:3 bits, Blue: 2 bits)
Resolution: Up to 360x224 pixels (tiles-only and tiles-and-sprites modes)
Sprites: 32+ simultaneous sprites on screen (depending on video mode)
Video output: NTSC Composite and S-Video (Works without changes on most PAL/SECAM TVs)
Sound: 5 channels, 8-bit mono, mixed at ~15Khz and output via PWM
Inputs: Two NES/SNES compatible joypad inputs, SNES Mouse
Options: MIDI-in interface, Uzenet interface (ESP8266 wifi modules + 128K External RAM)


These videos demonstrates some of the features of the Uzebox. The first one is a Tetris clone named "AVR Megatris". The game is fully functional and implements most of the official "Super Rotation System" (SRS) system complete with hold block, t-spins and ghost even plays classic Tetris songs!

Megatris Movie Uzebox AVCore Movie ESD Attack Movie Moon Patrol Movie Halloween Demo Movie Music Engine Demo Video Player Demo Uzebox Games Recap
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Starduino Thumb
Starduino Title
Stephane Hockenhull(rv6502)

Pong Thumb
Pong Title

Sokoban World Thumbnail
Sokoban World Title
Lee Weber

Dr.Mario Thumb
Dr.mario Title

Happy Easter Thumb
Happy Easter Title
Hartmut Wendt

zooming secretary Thumbnail
zooming secretary Title
Lee Weber

Columns Thumbnail
Columns Title
Lee Weber

Uzewars Thumb
Uzewars Title

Zombienator Thumb
Chuckie Egg Thumb
Chuckie Egg Title
Pitfall Jones

Megatris Thumb

All Games and Demos...

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Copyright (c) 2008-2021 Belogic (tm)
The Uzebox (including source code and hardware design) is released under the GNU GPL 3.0 Public Licence.
Pictures and content of this site is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License.
Uzebox is a reserved trademark.