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build 0.9.3 · Once Upon The Universe · SteamPeaks

Once Upon The UniverseEventsbuild 0.9.3

Game update

build 0.9.3

Once Upon The Universe · published 10 Aug 2026, 08:13 UTC

All events Players around this date Read on Steam

Improved Biosphere population limit clarity.
Prevent civilizations from starting Dyson Spheres they cannot maintain.
Added Close Watch feature for stars and planets, with critical alerts for dying stars, supernovas, dangerous host stars and predicted planetary collisions.

More from Once Upon The Universe

Other announcements

In-game event11 Sep 2026Civilization CulturesCivilization Cultures! Civilizations will now create and develop their own cultures based on their early background or colonial origins. Cultures develop additional traits over time, providing unique modifiers to civilizations. A culture can spread beyond the borders of a single civilization, and sometimes even outlive the civilization that gave birth to it. Cultures · Added a new Culture syste…Once Upon The UniverseGame update8 Sep 2026build 0.12.1Heavy Particle Collision can now target individual surface tiles, destroying local infrastructure, creating temporary lava fields and causing a short-lived planetary happiness penalty. · Surface building tooltips now always show their same-type adjacency bonus when applicable, including when the current bonus is 0%. · Added a Large Number Scale (naming) gameplay setting with Short Scale as the…In-game event4 Sep 2026Ice Caps, Sea Levels and HydrologyIce caps and water evaporation. With this update, planet land surfaces will no longer have a fixed water-to-land ratio. Instead, it is now actively affected by the level of ice caps on the planet, which will grow and melt depending on the planet’s temperature. If the planet's temperature rises too far beyond livable conditions, the Moist Greenhouse effect can occur, gradually evaporating water…