Best Universe Simulator Products in 2026

Real-time 3D visualization of space.

Key Celestia features:

Open Source Realistic 3D Views Cross-Platform Extensible

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 / 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

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

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

Free web app to explore satellite locations.

Key See A Satellite Tonight features:

User-Friendly Interface Real-Time Satellite Tracking Accessible Information Free to Use

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

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

Website for tracking Satellites, Space ships and other space objects.

Key Heavens Above features:

Comprehensive Coverage User-Friendly Interface Real-time Tracking Personalized Experience

A satellite tracking program for Windows, Mac OS and Linux.

Key Satscape features:

Free and Open Source User-Friendly Interface Comprehensive Satellite Tracking Cross-Platform Compatibility

Tracking the International Space Station. See it fly by.

Key ISS Detector features:

User-Friendly Interface Real-Time Tracking Customizable Alerts Additional Satellite Support

OpenSpace is open source interactive data visualization software designed to visualize the entire known universe and portray our ongoing efforts to investigate the cosmos.

Key OpenSpace features:

Enhanced Collaboration Comprehensive Visualization Integration Capabilities User-Friendly Interface

Open Source

The space-based MMO Vendetta Online balances an online trading system with tense ship-to=ship combat.

Key Vendetta Online features:

Cross-Platform Availability Real-Time Space Combat Player-Driven Economy Open World Exploration