
The Raincheck Pin is a complete free cooperative detective puzzle for two English-reading adults. Open the game in a browser on two devices; each player reads a different PDF evidence dossier and discusses conflicting timestamps to solve a fairground theft. No account, host, payment or printer is required. Optional download and feedback links are provided. HTML landing page with browser-readable PDFs, not a JavaScript action game. AI-assisted writing and art; independent human playtesting is not yet verified.
The Raincheck Pin — Free Two-Player Detective PDF Mystery was submitted to SlowDen by Bellglass Mysteries. SlowDen did not make this game - it is published here from the developer's own submission, added on 2026-10-16. It runs in the browser with no download, no install and no sign-up.