ModRetro Chromatic: Codex Edition
Build it with Codex. Play it on Chromatic.

ModRetro Chromatic: Codex Edition
$200.00
A small handheld for your big ideas. Create your own games with Codex and the ModRetro Chromatic plugin, load them onto the included Codex Cartridge, and play. The plot is entirely up to you.
Includes one programmable game cartridge.
Ships only to the US, Canada, Australia, New Zealand, Japan, UK, and EU. Shipping details
Learn more about our warranty & support.
As seen at DevDay
First introduced as a DevDay exclusive, the ModRetro Chromatic: Codex Edition quickly became a standout favorite. Now, it’s back with a new look as our latest Supply Co. drop.


From an idea to a cartridge
You bring the imagination. Codex and the ModRetro Chromatic plugin help you build a game, test it, and put it on a cartridge.

01 / Imagine
Start with a prompt
Describe the world, the characters, and how you want to play.

02 / Create
Build with Codex
Add the ModRetro Chromatic plugin to help turn your prompt into a game.

03 / Refine
Make it your own
Work with Codex to shape scenes, art, and game logic in GB Studio.

04 / Build
Ready, set, ROM
Build a ROM: the game file you can test, share, or load onto a cartridge.
Three ways to play
On your computer
Play. Tweak. Repeat.
Try your game in a browser emulator. Tell Codex what to change, then play again.
On your Chromatic
Get a feel for it
Stream your game from your computer to Chromatic to test its controls, screen, and sound.
On a cartridge
Take your game with you
Write your ROM to a Codex Cartridge, then play it on Chromatic without your computer.
Games created in Codex
We’ve entered uncharted gaming territory. Three original games made with Codex, ready for you to explore.

Seedy’s Sweet Garden
Tile matchingA lovely little puzzle game with a botanical twist. Swap pastel tiles, make matches, and see how high you can score.

Hollow Descent
Dungeon crawlerBattle monsters, learn spells, and upgrade your gear as you venture deeper into the dungeon.

Codex Dance
RhythmFollow the arrows, find your groove, and give the Codex mascot its moment on the dance floor.
Technical details
- Display
- 160px x 144px 2.56” IPS backlit LCD
Scratch-resistant gorilla glass - Power
- Comes with 3x AA batteries
Also compatible with ModRetro Rechargeable Power Core - Audio
- Custom ultra-loud speaker module
3.5mm headphone output - Compatibility
- Compatible with Game Boy® and Game Boy Color® game cartridges
Compatible with Chromatic game cartridges - Specs
- Console: 5.2x3x1.2in, 6.2oz
Transparent ABS Plastic Shell
PBT buttons
Charm attachment point
Complete your setup
A little something extra for your ModRetro. Explore the Chromatic Case and Codex Cartridge, available exclusively through Supply Co.

ModRetro Chromatic Case: Codex Edition
A Supply Co. exclusive carrying case with a protective hard shell, soft microfiber lining and space for an extra cartridge.

ModRetro Codex Cartridge
Another cartridge. Another world to build. Get an extra programmable Codex Cartridge, exclusively from Supply Co., for whatever you create next.
