Digital Universe Atlas
Pioneer Scout Plus
Celestia
Universe Sandbox
Finacle
Stellarium
Mitaka
EVE Online
Tom Clancy’s H.A.W.X 2
X-Plane
FlightGear
Digital Combat Simulator
Air Combat
Birds of Steel
Microsoft Flight Simulator X
Ace Combat: Assault Horizon
Digital Universe Atlas Tom Clancy’s H.A.W.X 2Pioneer Scout Plus - A game of missions, trade and space combat in the 31st century using the Pioneer Space Sim engine...
X-Plane - The world's most advanced flight simulator just got an upgrade. Download the free demo today for Windows, macOS, & Linux.
Celestia - Real-time 3D visualization of space
FlightGear - The FlightGear flight simulator project is an open-source, multi-platform, cooperative flight simulator development project. It also simulates space flight in Earth's orbit. It's flight dynamics engine (JSBSim) is used in a 2015 NASA benchmark.
Universe Sandbox - Universe Sandbox ² is a physics-based space simulator where you can simulate Events and even break physics and friction with certain features.
Digital Combat Simulator - Digital Combat Simulator is a Free-to-play, Single and Multiplayer Combat Flight Simulation developed by Eagle Dynamics and published by The Fighter Collection.