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🎮 Learning games and sites · 🔭 Science, nature and the world

Universe Sandbox

By Giant Army. Visit Universe Sandbox

Desk research from the maker's own pages. Not yet tried by us. Checked 2026-10-24.

A physics-based space simulator sold on Steam. Players build solar systems, crash planets together, change Earth's tilt or distance from the Sun to see seasons and climate shift, age stars into supernovas, and ride along with real spacecraft. It uses real gravity and climate models and runs in more than 20 languages. It is an Early Access game still in development, and it also works in VR. Schools can buy education licenses.

Our take: A memorable way for older kids and teens to explore gravity and climate; younger children need a parent's Steam account and some guidance.

The facts
Ages it suitsabout 10 and up
What its terms say about ageSold through Steam, which requires account holders to be at least 13; Steam does not knowingly collect data from under-13s. The game's own site states no age rule. (terms)
PricePaid. $29.99 on Steam (Oct 2026); the maker says the price may rise. Education licenses per seat, classroom or site by quote.
Works onWindows, Mac
AccountA parent's account
AdsNone
In-app purchasesNone
The AI in itNo AI.

What's good

  • Real physics you can play with at huge scale
  • Shows climate and seasons, not just space
  • One-time purchase, no ads
  • Education licenses available

Watch for

  • Needs a Steam account (13+), so a parent must own it for younger kids
  • Early Access: features may change
  • Needs a fairly capable computer
  • Steam Workshop and forums are public communities

Data and privacy

Not stated by the maker; purchase and play go through a Steam account under Valve's privacy policy, which sets 13 as the minimum age. Read the privacy policy.

Does it work?

No independent study found; the maker's own claims only (real Newtonian physics and climate models).

In the Big Index

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Where these facts come from

Prices, terms and features change. Nobody paid to be listed, nothing here is an affiliate link, and Peabody never rates itself. Where we and the maker disagree, the maker's own pages are the ones to trust.