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App icon — Monstarium

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

Monstarium — Monsters on top of your windows (App screen 1 of 4)
Monstarium — Treat (App screen 2 of 4)
Monstarium — Friends (App screen 3 of 4)
Monstarium — Bestiary (App screen 4 of 4)