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New Game Alert: Tank Fu!
November 16, 2015 at 9:38 pm

Lawrence Brooks released his first Uzebox game! Tank Fu is a tank-on-tank multiplayer deathmatch game. Best played with two players but also supports a single player against CPU mode.  It supports 11 [...]

New Game Alert: Bugz!
October 4, 2015 at 9:12 pm

Matt Pandina (Artcfox) has releaed his first Uzebox game named Bugz!  Bugz is an all-original 2D platformer with 21 levels. The object is to collect all the cookies in each [...]

New Game Alert: Ghosty Ghost!
June 12, 2015 at 8:58 pm

James Elliott (aka Kivan117) has officially released his first game, Ghosty Ghost! It’s the epic tale of a brand new ghost who’s just learning to fly… or something like that. Simple, [...]

Uzebox Keyboard Interface Released!
March 14, 2015 at 1:46 am

It’s been in the works for quite some time, but it’s finally released: the Uzebox keyboard! The interface, which uses only a AtTiny25, allows you to connect any PS/2 keyboard [...]

New Game Alert: Babylon Tower!
March 7, 2015 at 7:30 pm

Kerby just released his second game named Babylon Tower! Babylon Tower is a puzzle game where the goal is to line up colored balls 5 in a row either horizontally or [...]

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 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 that support GDB debugging.
  • 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: Up to 32 simultaneous sprites on screen at any time
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
Options: MIDI-in interface


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
Buy Uzebox Kit at Adafruit
Buy EUzebox Kit
Latest Stable Version: 1.19.1
Features   Download(Win32)   Sources
2048 Thumb
2048 Title
Hartmut Wendt

Zombienator Thumb
Megatris Thumb
Lander Thumb
Lander Title
Hartmut Wendt

Lawrence Brooks

Megasokoban Thumb
Megasokoban Title
Martin Šustek

Frogger Thumbnail
Frogger Title
Paul McPhee

Sokoban World Thumbnail
Sokoban World Title
Lee Weber

babylon tower Thumb
Kerby Title

Simon Thumb
Simon Title
Hartmut Wendt

joyrider Thumb
joyrider Title

Pong Thumb
Pong Title


All Games and Demos...

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Copyright (c) Belogic
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.