Best Space Simulator Products in 2025

Stellarium is a free open source planetarium for your computer.

Key Stellarium features:

User-Friendly Interface Realistic Sky Simulation Extensive Database Open Source

Open Source

FlexiQuiz is a powerful online test generator that enables you to create engaging online quizzes, tests, or exams in minutes. Choose from 100's of features to create a customized quiz that meets your objectives for business, education, or fun. .

Key FlexiQuiz features:

Question bank Groups Courses Add media

Try for free freemium $25.0 / Monthly (Essentials plan)

Space Engine is a realistic virtual Universe you can explore on your computer.

Key Space Engine features:

Realistic Simulation Exploration and Discovery VR Support Modding Community

Real-time 3D visualization of space.

Key Celestia features:

Open Source Realistic 3D Views Cross-Platform Extensible

Open Source

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.

Key FlightGear features:

Open Source Cross-Platform Extensive Customization Active Community

Universe Sandbox ² is a physics-based space simulator where you can simulate Events and even break physics and friction with certain features.

Key Universe Sandbox features:

Realistic Physics Simulation Interactive Experience Educational Tool Stunning Visuals

Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.

Key EVE Online features:

Complex and Deep Gameplay Player-Driven Economy Large-Scale Space Battles Community and Social Interaction

Orbiter is a realistic 3D real-time space flight simulator program. Official site with free download. DownloadDownload mirror 1 Europe - Textures - Gallery - Links - .

Key Orbiter features:

Comprehensive Data Access User-Friendly Interface Collaborative Features Regular Updates

Build spacecraft, fly them, and try to help the Kerbals to fulfill their ultimate mission of conquering space.

Key Kerbal Space Program features:

Educational Value Realistic Physics Creative Freedom Modding Community

The world's most advanced flight simulator just got an upgrade. Download the free demo today for Windows, macOS, & Linux.

Key X-Plane features:

Realistic Flight Model Extensibility Cross-Platform Regular Updates

Birds of Steel is developed by Gaijin Entertainment for PlayStation and Xbox.

Key Birds of Steel features:

Detailed Simulation Variety of Aircraft Engaging Multiplayer Historical Campaigns

KStars is a Desktop Planetarium for KDE.

Key KStars features:

Open Source Cross-Platform Comprehensive Features Educational Tool

A window to the stars has never been more beautiful and easy to use.

Key Sky Guide features:

User-Friendly Interface Augmented Reality Offline Capability Detailed Information

1, 966, 341. Active citizen. Help us make Star Citizen a reality! Become a backer of the next-generation of Space-man. Reserve your ship.

Key Star Citizen features:

Immersive Graphics Expansive Universe Rich Lore Player-Driven Economy