Both realistic and fictional simulations appear in
Universe Sandbox, with each area of outer space being placed by default or according to the player's preference. Real simulations include the Solar System, which includes the eight planets, five minor planets, 160+ moons, and hundreds of asteroids; and predictions of future events such as the
Andromeda and
Milky Way galaxy collision which will occur in 3.8 to 4.5 billion years. During gameplay, the player may be introduced to the regions that include the 100 largest bodies in the Solar System, the nearest 1000 stars to the Sun or the nearest 70 galaxies to the Milky Way. A visual size comparison of the largest known stars and planets can be explored, and real time animations of events like the
Apophis asteroid passing near Earth in the year 2029 can be watched. Comets can be observed colliding into planets, such as the
Shoemaker Levy 9's collision with Jupiter. The trans-Neptunian object
2008 KV42 with a
retrograde motion orbit can be seen in a simulation. Moons are able to be converged into planets, and may be able to affect the planet's atmosphere or minerals. Players are able to view the
Rho Cancri (55 Cancri) star in the
constellation of
Cancer; they can see the five known planets in the system. The
Pioneer and
Voyager spacecraft can be seen in its encounters with Jupiter, Saturn, Uranus, and Neptune. Visual
Lagrange points of the Earth and Moon can be seen, along with the
galaxy and
star system. The
gamma-ray burst locations, found in distant galaxies, can be found.
Supernovas are shown in real time. ==Reception==