open case

What it is

open case is a detective game that @YaoLabs made for Vibe Jam 2026. The pitch: solve a reopened homicide case by reading evidence, finding contradictions and completing a six-answer casebook before sending your final report. The home screen is an investigation desk for a case called "Vintage": a winemaker's brother washes up in dive gear, and a drowning ruling held until the wine cellar records reopened the case. There are 18 evidence files on the desk. There's no action at all; it's all reading and reasoning, much like working through a real case file. The jam rules require at least 90% of the code to be written by AI; the jam page doesn't list which AI tools were used.

Who it's for: fans of detective fiction and deduction puzzles who don't mind reading.

Before you start: under Vibe Jam's rules it's free to play in the browser with no sign-up. Everything is in English, and there's a lot to read. It's a homicide investigation told mostly through written evidence. The page doesn't say whether it works on phones, and no age rating is given.

Based on public information from Vibe Jam and the game's home page. Not tested by AI Inspiration World.