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Steam News1 June 20261mo ago

build 0.1.17

Reworked stellar mass growth with a new metallicity-based model where heavy elements increase star mass but gradually limit future stellar accretion.

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Full Once Upon The Universe update

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What changed

0 fixes2 additions3 changes0 removals
  • Gameplay
  • UI and audio
addedReworked stellar mass growth with a new metallicity-based model where heavy elements increase star mass but gradually limit future stellar accretion.
addedAdded clearer stellar growth feedback: Sector Metallicity tooltips and selected Star details now show how sector metallicity and absorbed heavy-element mass limit future hydrogen-based star growth.
changedImproved star simulation readability and behavior: yellow stars now live longer, star collision/absorption radius scales with visual size, and star panels now show remaining life in seconds.
changedIncreased the metallicity requirement for biosphere formation and the related early-game milestone.
changedImproved early universe pacing: the first sector now begins its full interior simulation only after the player enters it, with initial proto-star formation delayed for a short period.

Once Upon The Universe changes

addedReworked stellar mass growth with a new metallicity-based model where heavy elements increase star mass but gradually limit future stellar accretion.
addedAdded clearer stellar growth feedback: Sector Metallicity tooltips and selected Star details now show how sector metallicity and absorbed heavy-element mass limit future hydrogen-based star growth.
changedImproved star simulation readability and behavior: yellow stars now live longer, star collision/absorption radius scales with visual size, and star panels now show remaining life in seconds.
changedIncreased the metallicity requirement for biosphere formation and the related early-game milestone.
changedImproved early universe pacing: the first sector now begins its full interior simulation only after the player enters it, with initial proto-star formation delayed for a short period.

  • Reworked stellar mass growth with a new metallicity-based model where heavy elements increase star mass but gradually limit future stellar accretion.

  • Added clearer stellar growth feedback: Sector Metallicity tooltips and selected Star details now show how sector metallicity and absorbed heavy-element mass limit future hydrogen-based star growth.

  • Improved star simulation readability and behavior: yellow stars now live longer, star collision/absorption radius scales with visual size, and star panels now show remaining life in seconds.

  • Increased the metallicity requirement for biosphere formation and the related early-game milestone.

  • Improved early universe pacing: the first sector now begins its full interior simulation only after the player enters it, with initial proto-star formation delayed for a short period.

Source

Steam News / 1 June 2026

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