Play Costcodle online
I use this page when I want the puzzle larger than the homepage frame. The game is the original site. Nothing is installed.
The game loads from costcodle.com only after you click. It was built by Zachary Kermitz and is free in the browser.
There is nothing to download
I checked the repository for an app manifest, a store link, and a Steam id. The project is one web page on GitHub Pages. Searches for Costcodle download, Costcodle app, or Costcodle Steam are looking for a build the developer did not ship. It is free because the page is free, not because a trial expires.
Unlimited mode
The official counter moves forward one puzzle each local day. I have seen other websites use the word unlimited in their own domain names. I have not audited their code, so I do not treat them as a mode of this game. If you want another past item, open the archive after you finish today.
Platform check 2026-09-30 against github.com/KermWasTaken/costcodle. Embed allowed microphone and same-origin, and it does not allow top navigation.