Monstarium
Tiny pixel monsters that live along the bottom of your screen and climb your windows.
About
Monstarium is a terrarium that lives on your desktop. It sits on the bottom of your screen, above your other windows, and never gets in the way: clicks go straight through to whatever is behind it, except on the monsters themselves.
Buy an egg, wait a minute, meet a new monster. Drag one onto its twin and they evolve. 37 evolution lines, 95 forms, 5 biomes and 950 looks to collect while you work.
They have a life of their own: they make friends, race for treats, get names and diaries, wear Christmas caps. It earns coins while closed and uses about as much as a browser tab.
Features
- Always-on-top strip with full click-through
- 950 looks and 67 achievements
- Real daylight, seasons and optional real weather
- 10 languages
- Hand-made pixel art, no generative AI
Screens



