Create &amp; destroy on an unimaginable scale with a realistic physics-based space simulator. Explore the beauty of our universe and the fragility of our planet. Use science to bend the laws of gravity, collide planets, boil away oceans, fire epic space lasers, and customize your universe.

Universe Sandbox is a realistic physics-based space simulator that allows you to create, destroy, and interact on an unimaginable scale.It merges real-time gravity, climate, collision, and material interactions to reveal the beauty of our universe and the fragility of our planet. <h2 class="bb_tag" >Simulate Gravity</h2>N-body simulation at almost any speed using Newtonian mechanics. Real science, real physics, no supercomputer required. <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/4e0bd87bad82313ee47be42b23b34207.poster.avif?t=1745448523" width=792 height=462 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/4e0bd87bad82313ee47be42b23b34207.webm?t=1745448523" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/4e0bd87bad82313ee47be42b23b34207.mp4?t=1745448523" type="video/mp4"></video><h2 class="bb_tag" >Collide Planets &amp; Stars</h2>Epic, mind blowing collisions of massive planetary bodies that leave behind molten craters. <img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/ec8847b5d7e975e259ce0b488a0d4b57.avif?t=1745448523" data-big-src=https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras_big/ec8847b5d7e975e259ce0b488a0d4b57.avif?t=1745448523 width=800 height=450 /><h2 class="bb_tag" >Create Your Own Systems</h2>Start with a star, then add a planet. Spruce it up with moons, rings, comets, or even a black hole.<video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/6e4919b2ef96ee1d40ee1131eca2e789.poster.avif?t=1745448523" width=640 height=360 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/6e4919b2ef96ee1d40ee1131eca2e789.webm?t=1745448523" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/6e4919b2ef96ee1d40ee1131eca2e789.mp4?t=1745448523" type="video/mp4"></video><h2 class="bb_tag" >Model Planetary Climate</h2>Watch sea ice grow and recede with the seasons because of a planet’s tilt - change the tilt and change the seasons. Or move planets close to a star and see the oceans boil away as the surface heats up. <img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/626fb5eb0d30924f47fa229622c1dcfe.avif?t=1745448523" data-big-src=https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras_big/626fb5eb0d30924f47fa229622c1dcfe.avif?t=1745448523 width=800 height=450 /><h2 class="bb_tag" >Supernova a Star</h2>Watch a supernova unfold by colliding two stars, cranking up their mass, or making them explode at your whim.<img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/292c1d428fc3ccd9c1cd5c3b1f8666cb.avif?t=1745448523" data-big-src=https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras_big/292c1d428fc3ccd9c1cd5c3b1f8666cb.avif?t=1745448523 width=800 height=450 /><h2 class="bb_tag" >Explore Historical Events</h2>Hitch a ride with spacecraft including Juno and New Horizons, or view a total solar eclipse. <video class="bb_img" autoplay muted loop playsinline poster="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/dc17de4aaf9ad89d139ecfda19f70579.poster.avif?t=1745448523" width=640 height=360 ><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/dc17de4aaf9ad89d139ecfda19f70579.webm?t=1745448523" type="video/webm; codecs=vp9"><source src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/dc17de4aaf9ad89d139ecfda19f70579.mp4?t=1745448523" type="video/mp4"></video> <h2 class="bb_tag" >And more...</h2><ul class="bb_ul"><li>Build and terraform planets with 12 materials, including water, oxygen, &amp; carbon dioxide</li><li>Stellar flares &amp; volatile trails</li><li>Procedurally generated planets, stars, &amp; galaxies</li><li>Pulsars</li><li>Light-warping black holes</li><li>Epic space lasers</li><li>Shape oceans &amp; mountains on planet surfaces</li><li>Spin planets apart with centrifugal force</li><li>Original soundtrack by Macoubre</li><li>Support for 20+ languages</li><li>Share &amp; explore simulations on Steam Workshop</li></ul><img class="bb_img" src="https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras/c1a8188a458128fb180cf1ddb94056ab.avif?t=1745448523" data-big-src=https://shared.akamai.steamstatic.com/store_item_assets/steam/apps/230290/extras_big/c1a8188a458128fb180cf1ddb94056ab.avif?t=1745448523 width=800 height=450 />

Good Game Database

Universe Sandbox Achievements