See it in action
Four-player Warlords with real paddles, jitter-free Kaboom!, and Atari 800 and arcade games on the Quad’s own screen.
Which adapter do I need?
Start with the controllers you have. Not sure? Compare every adapter.

Atari 2600 and 7800
Joysticks, paddles, driving controllers, trackballs and keypads.
Duo Ultimate (2 players) or Quad Ultimate (4 players)
MiSTer FPGA, built and tested
Ready-to-play MiSTer systems and the parts to build or upgrade your own. See all MiSTer products.
Why iCode
Smooth, steady paddles
Our jitter-free paddle processing keeps even worn paddles smooth, with no noise or drift.
Free app and updates
iCodeHub runs in your browser: map buttons, save presets and update the firmware in a few clicks.
Open source
The games engines in our devices, Pico2Arcade and Pico2Atari8, are open source on GitHub.
Real people, real help
Questions go to the people who design the adapters, on our help pages, the forum and Discord.
From the blog
- Meet the iCode Quad Ultimate: Four-Player Atari Controllers on Any Modern System, and a Game Machine TooFour Atari controller ports. One USB plug. And a color screen that turns the adapter into a game machine of its own.… Read more: Meet the iCode Quad Ultimate: Four-Player Atari Controllers on Any Modern System, and a Game Machine Too
- Pico2Arcade: 13 Classic Arcade Games on a $5 Raspberry Pi Pico 2 — Now Open SourcePac-Man. Galaga. Donkey Kong. Xevious. A handful of switches, a small color screen, a speaker — and a Raspberry Pi Pico 2… Read more: Pico2Arcade: 13 Classic Arcade Games on a $5 Raspberry Pi Pico 2 — Now Open Source
- How to Set Up Atari Joysticks & Paddles in RetroArch with the Duo Ultimate H1 USB Adapter (Windows)Setup Guide A friendly, step-by-step walkthrough for Windows. By the end, your classic Atari joysticks and paddles will play smoothly in RetroArch… Read more: How to Set Up Atari Joysticks & Paddles in RetroArch with the Duo Ultimate H1 USB Adapter (Windows)
Join the community
Get help, share your setup and see what’s coming next.














