Single-player games like Galactum Meridian
Below are 8 single-player Steam games similar to Galactum Meridian, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Galactum Meridian page.
Ranked picks
- 1
New Stars
Single-player alternative to Galactum Meridian — playable solo, no multiplayer required. Shares Strategy and Indie with Galactum Meridian.
Expand your own galactic empire across new stars, research technologies, and challenge great alien powers in this immersive 4X grand strategy game. Build interstellar colonies, and starbases to gather more resources. Explore a unique galaxy full of secrets, great perils, and limitless possibilities.
- 2
Star Trek: Infinite
Single-player alternative to Galactum Meridian — playable solo, no multiplayer required. Shares Strategy and Simulation with Galactum Meridian.
Star Trek: Infinite is a grand strategy experience that lets you play your own Star Trek story as the leader of one of four major factions in the galaxy. Follow the specially crafted story or blaze your own trail in the first Star Trek grand strategy game.
- 3
Horizon
Single-player alternative to Galactum Meridian — playable solo, no multiplayer required. Shares Strategy and Indie with Galactum Meridian.
Horizon is a turn-based space strategy game of galactic exploration and conquest in which you are in control of humanity’s destiny. You will explore deep space, find new frontiers and discover alien artifacts hidden on long-abandoned planets.
- 4
NEBULOUS: Fleet Command
Single-player alternative to Galactum Meridian — playable solo, no multiplayer required. Shares Strategy and Simulation with Galactum Meridian.
Take command of your hand-tailored fleet of space warships and use realistic radar, electronic warfare, advanced movement controls in 3D space, and precision targeting to outmaneuver and outwit your opponents in a simulation-heavy tactical space game like no other.
- 5
ENDLESS™ Space - Definitive Edition
Single-player alternative to Galactum Meridian — playable solo, no multiplayer required. Shares Strategy with Galactum Meridian.
ENDLESS™ Space is a turn-based 4X strategy game, covering the space colonization age in the ENDLESS™ Universe, where you can control every aspect of your civilization as you strive for galactic domination.
- 6
Kerbal Space Program
Single-player alternative to Galactum Meridian — playable solo, no multiplayer required. Shares Indie and Simulation with Galactum Meridian.
In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.
- 7
Stellaris
Single-player alternative to Galactum Meridian — playable solo, no multiplayer required. Shares Strategy and Simulation with Galactum Meridian.
Explore a galaxy full of wonders in this sci-fi grand strategy game from Paradox Development Studios. Interact with diverse alien races, discover strange new worlds with unexpected events and expand the reach of your empire. Each new adventure holds almost limitless possibilities.
- 8
Sins of a Solar Empire®: Rebellion
Single-player alternative to Galactum Meridian — playable solo, no multiplayer required. Shares Strategy and Indie with Galactum Meridian.
Command a space-faring empire in Sins of a Solar Empire: Rebellion, the new stand-alone expansion that combines 4X depth with real-time strategy gameplay.