There are a wide variety of sample simulations provided with AstroGrav, and these are grouped according to the type of simulation into the following folders.
Abstract Simulations are a variety of abstract systems that can be studied, modified, and used as a source of ideas for further investigation.
Solar System Simulations are a variety of solar system simulations, with each one containing different subsets of objects (planets, moons, asteroids, comets, KBOs).
Solar System 2 Simulations are examples of particular objects (asteroids, comets) in the solar system whose motion under the influence of gravity is in some way interesting or unusual.
Space Mission Simulations are examples of space missions in which "gravity assists" were used to reach the mission target.
Each sample simulation has accompanying notes explaining what the simulation is, how it was created, what you can do with it, and with ideas for further investigation. These notes can be viewed either by using the above links, or by using the Edit / Notes... facility when the simulation is open.
Sample Simulations
AstroGrav Help /
Sample Simulations