The Grade 5B Case Files (2026)

Developer: 狸老师工作室
Publisher: Eternal Dream
Platforms: Windows
Genres: Adventure, Indie, RPG, Free To Play
Rating: 4.5 of 5, 138 player ratings
Typical playtime: about 2.2 hours
Where to get it: Steam

The 3D catalog: game boxes on wooden shelves, with the cat sitting at the counter next to its greeting.

The catalog in 3D

The same catalog has a room you can walk around in. The cat behind the counter is the AI Catbot, and they pick real games from it when you tell them what you feel like playing. Nothing is for sale, here or in there. Go in from here and this game is already out on the counter, with more like it waiting on the shelf next to it.

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How it feels

You and a friend explore ordinary-seeming mysteries by flipping through a notebook, with a calm, conversational pacing.

mysteriousadventureinvestigativestory-drivencozyatmosphericfree-to-playcasual

What players say

Players praise the cozy everyday mysteries and the charming, well-written elementary school cast. Most say the detective work is light and there is little player involvement, with chapters running about an hour each. Some note the first chapter can stall without hints, and players split on whether the reasoning holds up.

Screenshots

More games like this

This page is from Underplayed Gems, a catalog of older and overlooked games. Not quite it? You can browse by platform and genre, or take this one into the 3D catalog and ask the Catbot for something closer.