Single-player games like Space Opera
Below are 8 single-player Steam games similar to Space Opera, 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 Space Opera page.
Ranked picks
- 1
Horizon
Single-player alternative to Space Opera — playable solo, no multiplayer required. Shares Strategy and Indie with Space Opera.
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.
- 2
NationWar2:Chronicle
Single-player alternative to Space Opera — playable solo, no multiplayer required. Shares Strategy and Indie with Space Opera.
NationWar 2.0 is a big strategy game based on the theme of the Spring and Autumn and Warring States period. There are more than 60 countries to choose from in the game. Map 1: 1 restores the mountainous landscapes and rivers of China.
- 3
Interstellar Space: Genesis
Single-player alternative to Space Opera — playable solo, no multiplayer required. Shares Strategy and Indie with Space Opera.
Interstellar Space: Genesis is a turn-based space 4X strategy game in which you attempt to build a thriving galactic empire. Discover mysteries among the stars, colonize worlds, and engage enemies in tactical turn-based combat on your journey to becoming the ruler of the galaxy!
- 4
ZEPHON
Single-player alternative to Space Opera — playable solo, no multiplayer required. Shares Strategy with Space Opera.
From the developers of Warhammer 40,000: Gladius, ZEPHON is a post-apocalyptic 4X strategy game built on Proxy’s unique tactical combat system. Guide survivors through a turbulent future, navigating unexpected disasters, eldritch horror and cyberpunk monstrosities. What will you do to survive?
- 5
The Last Federation
Single-player alternative to Space Opera — playable solo, no multiplayer required. Shares Strategy and Indie with Space Opera.
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.
- 6
Fantasy General II
Single-player alternative to Space Opera — playable solo, no multiplayer required. Shares Strategy with Space Opera.
The fantasy wargaming classic is back! Lead powerful heroes and mighty armies into battle in this critically acclaimed turn-based strategy milestone. Level up and train your units and guide them through a gripping story campaign to decide the fate of a world on the brink of destruction.
- 7
Fallen Enchantress: Legendary Heroes
Single-player alternative to Space Opera — playable solo, no multiplayer required. Shares Strategy and Indie with Space Opera.
Fallen Enchantress is 4X strategy game from the makers of Sins of a Solar Empire and Galactic Civilizations. Build a civilization in the magical world of Elemental. Recruit heroes, train armies, build cities, forge alliances and save the world in this rich world where it's never the same game twice.
- 8
Aggressors: Ancient Rome
Single-player alternative to Space Opera — playable solo, no multiplayer required. Shares Strategy with Space Opera.
A mix of deep gameplay and rich historical flavor, Aggressors: Ancient Rome lets you relive history as the ruler of one of the mighty civilizations of the ancient Mediterranean. Choose one of twenty available factions and conquer the world.