Operation: Outbreak Idle (2026)

Developer: DeadLogics
Platforms: Windows
Genres: Casual
Rating: 4.6 of 5, 26 player ratings
Typical playtime: about 1.5 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

a low-effort watch-and-tap power fantasy where your defenses and arsenal snowball against ever-thicker waves.

idleincrementalzombie survivalescalatingempoweringcasualstrategicupgrade-driven

What players say

Players describe short defense rounds against zombie waves where upgrades land fast and hard, with a few runs enough to unlock several weapons. Many say the best idle moments come mid-biome once your guns outpace the horde, and long-time players still ask for cloud saves, more content, and better translation.

Screenshots

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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.