Single-player games like Interplanetary
Below are 9 single-player Steam games similar to Interplanetary, 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 Interplanetary page.
Ranked picks
- 1
Worbital
Single-player alternative to Interplanetary — playable solo, no multiplayer required. Shares Strategy and Indie with Interplanetary.
With the shifting gravity on your side, aim your cannons, blast your enemies and enjoy the fireworks. Worbital is a real-time strategic artillery game in space, peppered with a heavy dose of cosmic chaos. The goal: be the last civilization standing!
- 2
ENDLESS™ Space - Definitive Edition
Single-player alternative to Interplanetary — playable solo, no multiplayer required. Shares Strategy with Interplanetary.
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.
- 3
The Last Federation
Single-player alternative to Interplanetary — playable solo, no multiplayer required. Shares Strategy and Indie with Interplanetary.
From the creators of AI War: Fleet Command comes an all-new grand strategy title with turn-based tactical combat, set in a deep simulation of an entire solar system and its billions of inhabitants. You are the last of a murdered race, determined to unify or destroy the 8 others.
- 4
Space Empires V
Single-player alternative to Interplanetary — playable solo, no multiplayer required. Shares Strategy with Interplanetary.
Space Empires V is the latest edition in the Space Empires series. This new chapter completely updates the UI and takes the player into a real-time rendered 3D universe. Watch space battles played out in glorious detail and realistic effects. Expand, Explore, Exploit, and Exterminate in a huge living breathing galaxy.
- 5
Stellaris
Single-player alternative to Interplanetary — playable solo, no multiplayer required. Shares Strategy with Interplanetary.
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.
- 6
Stars in Shadow
Single-player alternative to Interplanetary — playable solo, no multiplayer required. Shares Strategy and Indie with Interplanetary.
Stars in Shadow is a turn-based 4X strategy game and a vivid tribute to the genre classics. Compete with alien factions to explore and colonize nearby starsystems, build fleets to defend against rivals, negotiate or conquer them. Win by unifying the galaxy, through diplomacy or force.
- 7
Into the Breach
Single-player alternative to Interplanetary — playable solo, no multiplayer required. Shares Strategy and Indie with Interplanetary.
Control powerful mechs from the future to defeat an alien threat. Each attempt to save the world presents a new randomly generated challenge in this turn-based strategy game.
- 8
Sins of a Solar Empire: Trinity®
Single-player alternative to Interplanetary — playable solo, no multiplayer required. Shares Strategy and Indie with Interplanetary.
In Sins of a Solar Empire: Trinity, you are the leader of a civilization embroiled in a galactic war, fighting for the survival of your entire race against relentless foes.
- 9
Mushroom Crusher Extreme
Single-player alternative to Interplanetary — playable solo, no multiplayer required. Shares Indie with Interplanetary.
Mushroom Crusher Extreme is a retro-styled arcade-action game, that throws you right in the heart of a giant Shroom invasion. Fight off the vicious fungi with elemental magic and save the day, before it’s too late.