Steam game

Periapsis: Eclipse

Conquer the Settled Galaxy in Periapsis: Eclipse where gravity, heat and the physics of space are the keys to conquest. Master orbital mechanics, real-world inspired weapons and nuclear rockets to outmaneuver dozens of hostile ships and claim victory for the Exiled Empire.

$14.99 October 8, 2025

By Skytrellis Games

Windows
View on Steam
Periapsis: Eclipse - Skytrellis Games. Popular. Released October 8, 2025
Screenshot of Periapsis: Eclipse gameplay showing in-action mechanics Screenshot 2 of Periapsis: Eclipse - additional gameplay view Screenshot 3 of Periapsis: Eclipse - more gameplay footage Screenshot 4 of Periapsis: Eclipse - final gameplay screenshot

Overview

About this game

As a captain in the Exiled Empire’s Vanguard Fleet, you’re tasked with breaking the defenses of entrenched rival powers in order to pave the way for the full invasion fleet and bring about the Emperor’s return.

Orbital Mechanics

Every object is governed by orbital mechanics, from moons to ships to projectiles and scrap. You’ll learn to master the physics of space in the most approachable orbital mechanics game around.

Ship Customization

Outfit your ship with lasers, coilguns, particle beams and point defense systems inspired by real world weapons concepts. Craft new strategies with over 50 unique ship upgrade options.

Use Physics Creatively

Use space and physics to your advantage by making use of radiation, magnetic fields, atmospheric drag, and debris for defense or offense.

Heat Management

Balance your ship's fission reactor’s control rods, coolant and radiator panels to remove waste heat and optimize your ship’s systems.

In-depth Targeting and Sensors

Manipulate infrared heat signatures using deep sensor mechanics to track targets, get firing solutions and evade enemy targeting. 

Dynamic Campaign

Navigate the turbulent waters of the Exiled Empire's war of reconquest in a dynamic campaign that poses new challenges, adventures and decisions with every playthrough. Choose your path through the warzone wisely to secure vital upgrades and resources for your strike-group.

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