The Book of Plagues (2026)

Developer: DiaMMax Games
Platforms: Windows
Genres: Indie, Simulation
Rating: 4.4 of 5, 26 player ratings
Typical playtime: about 2.3 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 manage plagues in a grim, deliberate simulation with an uneasy atmosphere.

simulationindieatmosphericmethodicalplague-themedunsettlingmoderate pace

What players say

Players play a plague doctor treating townsfolk with Undertale-style dodging minigames. The black humor from a crow sidekick and the Rusty Lake-esque art get praise, but the lack of manual saving frustrates many, who say it makes the game a one-time playthrough.

Screenshots

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More by DiaMMax Games

Captain Goose (2023)

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.