indiegame.fan
Orbital Physics Simulator header art

Orbital Physics Simulator

Master physics in this hardcore orbital simulator where Einstein’s theories come to life. Plot trajectories and manipulate spacetime via general relativity, time dilation, and length contraction. Command your starship, outrun time, and explore a universe governed by real physics.

Steam Page
Release
June 22, 2026
41 days ago
Steam Reviews
Positive16 reviews81.3%

Does this feel indie?

Vote based on whether this game feels indie to you. You can change your vote at any time. Results earn an IGF score after 10 accepted votes.
No votes yet
Vote on More Games
Game contextLatest: IGF Team
ContextThe evidence factors used to assess whether this game belongs on IndieGame.Fan.Status
Notes
Latest Contributor: IGF TeamEdit notes
Updated: Jul 14, 2026Developer scaleThe operating scale of the game's developer.
Updated: Jul 14, 2026Publisher scaleThe operating scale of the game's publisher.
A separate publisher is listed without a proven bounded regional or service-only role.
Search Google: Is Orbital Physics Simulator self-published or published by Blue Screen Studios?Publisher statusHow the game's publishing relationship is classified.
Search Google: How is Orbital Physics Simulator and Blue Screen Studios funded?FundingThe known source of funding behind the game.
Search Google: Who controls the creative direction and IP for Orbital Physics Simulator and Nathan Schmitt?Creative controlWho appears to retain creative control of the game.
Updated: Jul 14, 2026Release statusWhether and how the game has been released.
The title released with a separate publisher relationship.

Media

7 items

About the Game

A realistic orbital mechanics sandbox set entirely within our solar system, governed strictly by real-world Newtonian physics and Einstein’s theories of relativity.

The simulation bypasses launch sequences and atmospheric escapes, placing your craft directly into an established Earth orbit. From this starting point, operation focuses entirely on orbital maneuvering, trajectory calculation, and navigation.

Core Mechanics & Navigation

Interplanetary transit relies entirely on directional thrust. You can not rely on the autopilot if you want to progress. Instead, you must manually rotate the craft to thrust at specific angles to alter your trajectory.

To travel between planets, you change your course by timing these manual burns to account for relative orbital velocities and gravitational influences. Reaching destinations like Mars or Jupiter requires precise rotation and execution of insertion burns and gravity assists, where your thrust angle dictates your final path.

Relativistic Physics & Visual Distortion

The engine actively simulates the physical effects of near-light-speed travel by dynamically calculating time dilation, length contraction, and relativistic aberration based on your velocity. Time dilation is tracked via synchronized readouts comparing your onboard ship clock with external coordinate time, mapping how seconds for you equal months or years in the solar system. Mechanically, the universe compresses along your vector of travel, while the engine calculates light aberration to shift and bunch your field of view forward.