Tenebrarium Demo

100.0% positiveFreeSteam Store

About the game

An idle-like alien colony simulator. Study an alien species and expand the colony to discover all their peculiar behaviours.

Current players

Updated Nov 10, 12:15 AM

24hr peak

Highest count in the last 24 hours

All time peak

Highest count in recorded history

Player history

904 observations in viewHistorical player data prior to Sept 2026 is from steamcharts.com.Nov 3, 2026, 12:24 AM – Nov 10, 2026, 12:15 AM

Rankings: Most Played#3,862
Developer: Whatdog
Publisher: Whatdog
Release date: Oct 7, 2026, 3:56 PM
Languages: English
Price: Free to play
Platforms: Windows
Features: Feature names
Single-player
Custom Volume Controls
Playable without Timed Input
#category_playable_at_your_own_pace
Tags: Idler Aliens Colony Sim Sandbox Simulation

Positive reviews

100.0%

Updated Nov 9, 11:48 AM

Mode

6 observations in viewNov 3, 2026, 11:42 AM – Nov 9, 2026, 11:48 AM