Oddorithm support

Answers to the common questions, and where to write if something else goes wrong.

Updated 4 November 2026

Install on Windows, Mac and Linux

Buy Oddorithm on itch.io and download the file for your system. The purchase stays in your itch.io library, where you can download it again and get updates.
Mac: unzip and open Oddorithm. The app is signed with a Developer ID certificate and notarized by Apple. It runs on macOS 11 or later, on Apple silicon and Intel.
Windows: unzip and run Oddorithm.exe. The game is not code signed, so Windows SmartScreen may warn you the first time; choose More info, then Run anyway. Only do this for a file downloaded from the Lanternbench itch.io page, when Windows says the publisher is unrecognised. Never bypass a malware warning.
Linux: unzip and run Oddorithm.x86_64. If it does not start, allow the file to run as a program in its properties.
The free browser version has the complete reasoning test and the Pattern Foundry. Its progress stays in the browser and does not carry over to the desktop game.

Open Settings, then Full game and purchases, and choose Restore purchases.
Make sure Google Play uses the Google account that bought the full game. Restoring needs a connection to Google Play.
The full game unlocks as soon as Google Play confirms your pending payment.

Oddorithm is a paid App Store download with no in-app purchase. Find it in your App Store purchases with the Apple account that bought it and download it again.
Your progress comes back only if it is in a device backup.

Open Settings, then Language: Automatic follows your device, or pick English, Français, Deutsch, Español, Italiano, Nederlands, Português (Brasil), 日本語, 한국어 or العربية.

The Mind Index is a score for this game's sixteen calibration puzzles. It is separate from the estimated IQ of the reasoning test, and it is not compared with anyone.

Write with your computer or device model, the game version, the puzzle name and what happened. A screenshot helps.
Never send passwords, payment details or purchase tokens.
How support emails are handled is in the Oddorithm privacy policy.