Underplayed Gems

The Grade 5B Case Files (2026)

The Grade 5B Case Files cover

Developer: 狸老师工作室
Publisher: Eternal Dream
Platforms: Windows
Genres: Adventure, Indie, RPG, Free To Play
Rating: 4.8 of 5, 74 player ratings
Typical playtime: about 1.2 hours
Where to get it: Steam

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

Screenshots

The Grade 5B Case Files screenshot 1

The Grade 5B Case Files screenshot 2

The Grade 5B Case Files screenshot 3

The Grade 5B Case Files screenshot 4

The Grade 5B Case Files screenshot 5

The Grade 5B Case Files screenshot 6

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This page is from Underplayed Gems, a catalog of older and overlooked games. Not quite it? Tell the Catbot what you feel like playing and it picks from the whole catalog, or browse by platform and genre.