Single-player games like StarFringe: Adversus
Below are 9 single-player Steam games similar to StarFringe: Adversus, 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 StarFringe: Adversus page.
Ranked picks
- 1

Gemini Wars
Single-player alternative to StarFringe: Adversus — playable solo, no multiplayer required. Shares Strategy with StarFringe: Adversus.
Take control of a fleet commander returned from exile, rise through the ranks of the United Space Federation forces and join an epic war across the stars.
- 2

Polaris Sector
Single-player alternative to StarFringe: Adversus — playable solo, no multiplayer required. Shares Strategy with StarFringe: Adversus.
Can anyone build an empire in a place like this? Other factions are naturally suspicious of newcomers and may wage war at the first sign of unidentified craft. Here, a natural death is an uncommon luxury.
- 3

Sins of a Solar Empire®: Rebellion
Single-player alternative to StarFringe: Adversus — playable solo, no multiplayer required. Shares Strategy with StarFringe: Adversus.
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.
- 4

Distant Worlds: Universe
Single-player alternative to StarFringe: Adversus — playable solo, no multiplayer required. Shares Strategy with StarFringe: Adversus.
Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game.
- 5

Cataclismo
Single-player alternative to StarFringe: Adversus — playable solo, no multiplayer required. Shares Strategy with StarFringe: Adversus.
Design and build fortresses brick by brick to stand against endless hordes of Horrors in this real-time strategy game with resource management, siege defense, and exploration. Lead from the ramparts, push back the darkness, and hold fast against the creatures of the Mist.
- 6

ENDLESS™ Space - Definitive Edition
Single-player alternative to StarFringe: Adversus — playable solo, no multiplayer required. Shares Strategy with StarFringe: Adversus.
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.
- 7

Sid Meier's Civilization®: Beyond Earth™
Single-player alternative to StarFringe: Adversus — playable solo, no multiplayer required. Shares Strategy with StarFringe: Adversus.
Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series. As part of an expedition sent to find a home beyond Earth, lead your people into a new frontier, explore and colonize an alien planet and create a new civilization in space.
- 8

AI War: Fleet Command
Single-player alternative to StarFringe: Adversus — playable solo, no multiplayer required. Shares Strategy with StarFringe: Adversus.
"You are outgunned. You are massively outnumbered. You must win." These are your orders. Humanity has already fought its war against the machines -- and lost. AI death squads stand watch over every planet and every wormhole, the few remaining human settlements are held captive in orbiting bubbles, and the AIs have turned their...
- 9

StellarHub
Single-player alternative to StarFringe: Adversus — playable solo, no multiplayer required.
StellarHub is a starbase management game where your job is to build a safe and functional space station. Deal with the challenges of managing a station crew while taking care of everyone’s needs. Your tasks include construction, extraction of resources, defense, trade, and more.