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About Mammalarium
Mammalarium is a game tagged Creature Collector, Incremental and Idler by PiqFocus Interactive, launching on Steam on Nov 27, 2026. That is a mild week for games like it, with 89 similar games launching the same week. The quietest week ahead for games like it starts Nov 30. The Steam games most like it include Molluscarium, Amphibarium and Dinosaurium.
Relax and collect over 500 unique mammals in this cozy idle game. Watch babies grow into magnificent adults in real-time, customize warm woodland habitats across 9 themed packs, and discover rare species from tiny shrews to great whales.
Launch window
Open in Launch Week CheckerBusiest weeks for games like this one in the next 12 weeks:
- Week of Oct 26, 2026 — Packed, 267 similar games
- Week of Nov 9, 2026 — Packed, 218 similar games
- Week of Nov 2, 2026 — Packed, 217 similar games
Quietest: Nov 30, Dec 7, Jan 11.
Also launching the week of Nov 23
All upcoming games
Steam data
Everything Steam lists for Mammalarium · record updated 1 day ago
Overview
App ID5191050
Release dateNov 27, 2026
Last change number38655649
Last record update1 day ago
App info
- App type
- Game
- Developer
- PiqFocus Interactive
- Publisher
- PiqFocus Interactive
- Franchise
- PiqFocus Interactive
Features
6
Single-playerSteam AchievementsSteam CloudStatsSteam LeaderboardsFamily Sharing
Related apps
Data from public Steam pages, updated daily; 4 days of history. LaunchRivals is not affiliated with Valve or Steam.