Single-player games like Stellaris
Below are 20 single-player Steam games similar to Stellaris, 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 Stellaris page.
Ranked picks
- 1
Europa Universalis IV
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
Rule your land and dominate the world with unparalleled freedom, depth and historical accuracy. Write a new history of the world and build an empire for the ages.
- 2
Hearts of Iron IV
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
Victory is at your fingertips! Your ability to lead your nation is your supreme weapon, the strategy game Hearts of Iron IV lets you take command of any nation in World War II; the most engaging conflict in world history.
- 3
Falling Frontier
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
Conquer a vast procedurally generated star system in Falling Frontier, a sci-fi RTS where intel and logistics are decisive factors. Design ships and raid enemy supply lines, lay minefields and construct recon stations, and ambush enemy forces within asteroid fields and nebulae.
- 4
Fragile Existence
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
Save humanity from the brink of extinction in this sci-fi strategy game of survival. Travel among the stars to seek out resources, establish and develop colonies to sustain civilization, and grow your military might to push back against an overwhelming threat.
- 5
NEBULOUS: Fleet Command
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
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.
- 6
Terra Invicta
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
An alien invasion has fractured humanity into seven ideological factions each with a unique vision for the future. Lead your chosen faction to take control of Earth’s nations, expand across the Solar System, and battle enemy fleets in tactical combat.
- 7
Sins of a Solar Empire®: Rebellion
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
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.
- 8
Lord of Rigel
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
Lord of Rigel is a turn-based 4X space strategy game inspired by the classics. In a galaxy divided by two elder races, will you unite with other species or forge your own path? Navigate galactic politics and defeat threats using espionage, research, and military force. How will you shape the galaxy?
- 9
Age of Wonders 4
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy with Stellaris.
Rule a fantasy realm of your own design! Explore new magical realms in Age of Wonders’ signature blend of 4X strategy and turn-based tactical combat. Control a faction that grows and changes as you expand your empire with each turn!
- 10
ENDLESS™ Legend
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy with Stellaris.
ENDLESS™ Legend is a 4X turn-based fantasy strategy game by the creators of ENDLESS™ Space and Dungeon of the ENDLESS™. Control every aspect of your civilization as you struggle to save your homeworld Auriga. Create your own Legend!
- 11
Civilization IV: Beyond the Sword
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy with Stellaris.
Sid Meier's Civilization IV®: Beyond the Sword is the second expansion pack for Civilization IV - the 2005 PC Game of the Year that has become a worldwide hit.
- 12
RimWorld
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.
- 13
Victoria II
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy with Stellaris.
Carefully guide your nation from the era of absolute monarchies in the early 19th century, through expansion and colonization, to finally become a truly great power by the dawn of the 20th century. Victoria II is a grand strategy game played during the colonial era of the 19th century, where the player takes control of a country, guiding...
- 14
The Bureau: XCOM Declassified
Single-player alternative to Stellaris — playable solo, no multiplayer required.
The year is 1962 and the Cold War has the nation gripped by fear. A top-secret government unit called The Bureau begins investigating a series of mysterious attacks by an enemy more powerful than communism.
- 15
Total War: WARHAMMER II
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy with Stellaris.
Strategy gaming perfected. A breath-taking campaign of exploration, expansion and conquest across a fantasy world. Turn-based civilisation management and real-time epic strategy battles with thousands of troops and monsters at your command.
- 16
Crusader Kings III
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
Love, fight, scheme, and claim greatness. Determine your noble house’s legacy in the sprawling grand strategy of Crusader Kings III. Death is only the beginning as you guide your dynasty’s bloodline in the rich and larger-than-life simulation of the Middle Ages.
- 17
Victoria 3
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
Paradox Development Studio invites you to build your ideal society in the tumult of the exciting and transformative 19th century. Balance the competing interests in your society and earn your place in the sun in Victoria 3, one of the most anticipated games in Paradox’s history.
- 18
Crusader Kings II
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
Explore one of the defining periods in world history in an experience crafted by the masters of Grand Strategy.
- 19
Imperator: Rome
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellaris.
Dominate the classical Mediterranean in Imperator: Rome, a grand strategy game from Paradox Interactive. Navigate the dangerous waters of politics and diplomacy as you build up your provinces and conquer foreign lands. Now available with special content and the digital artbook.
- 20
Hearts of Iron III
Single-player alternative to Stellaris — playable solo, no multiplayer required. Shares Strategy with Stellaris.
Hearts of Iron III lets you play the most engaging conflict in world history, World War 2, on all fronts as any country and through multiple different scenarios. Guide your nation to glory between 1936 and 1948 and wage war, conduct diplomacy and build your industry in the most detailed World War 2 game ever made.