This jam is now over. It ran from 2023-10-01 07:00:00 to 2023-11-01 07:00:00. View 13 entries

Update: Pencils down; Thanks to everyone who participated! A playthrough video of all the submissions can be found here: 


Welcome once again to the 10th annual installment of the world's only game jam for the CHIP-8 virtual console!

This October, join us by building a game or program for CHIP-8 or one of its extensions- SCHIP and XO-CHIP.

The Octo IDE allows you to write CHIP-8 games in a beginner-friendly low-level language, and even export standalone HTML builds of your game to share here on Itch. You can write interesting games and programs in only a few lines (and bytes) of code. How much can you cram into 3.5kb?

Tools and Resources:

  • EZ-Pack: Convert large images into CHIP-8 Sprites
  • EZ-Writer: Compose text strings to fit a CHIP-8 or SCHIP display, with a variety of fonts
  • EZ-Bake Animator: Pre-generate Octo-compatible graphics programmatically
  • Emma02: Emulator for the COSMAC VIP, the original CHIP-8 platform
  • C-Octo: Develop Octo programs from the command line

Previous Octojams on

The Chip8 Archive contains many entries from older jams, as well as source code.


All submissions
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A game of bad typography
Play in browser
Play in browser
A chip8 jump and run game
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An 8-bit rendition of the 8-bit classic.
Play in browser
A CHIP-8 and SUPER-CHIP interpreter written in XO-CHIP.
Run in browser
Simple Octo / Chip-8 Game
Play in browser
Tech demo of a text rendering library for XO-CHIP
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Every journey has a first step. This... is the second step.
Play in browser
Reverse Hang Man
Play in browser
Play in browser
Unfinished calculator that displays numbers in the form of Japanese Kanji
Run in browser
A fencing game inspired by Nidhogg for the CHIP-8
Play in browser