Single-player games like IXION
Below are 17 single-player Steam games similar to IXION, 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 IXION page.
Ranked picks
- 1

Frostpunk
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Simulation with IXION.
Frostpunk is the first society survival game. As the ruler of the last city on Earth, it is your duty to manage both its citizens and infrastructure. What decisions will you make to ensure your society's survival? What will you do when pushed to breaking point? Who will you become in the process?
- 2

Endzone - A World Apart
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Indie with IXION.
Endzone is a post-apocalyptic survival city builder, where you start a new civilization with a group of people after an ecological disaster. Build them a new home and ensure their survival in a shattered world, threatened by constant radiation, toxic rain, sandstorms and droughts.
- 3

The Crust
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Simulation with IXION.
Automate a lunar base as you become the savior of humanity exploring the future on the moon. Mine, craft, research, and trade resources with Earth in this gripping narrative basebuilder.
- 4

Surviving Mars
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Simulation with IXION.
There will be challenges to overcome. Execute your strategy and improve your colony’s chances of survival while unlocking the mysteries of this alien world. Are you ready? Mars is waiting for you.
- 5

Space Haven
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Indie with IXION.
Embark on a space voyage with your ragtag crew of civilians in search of a new home. Build spaceships tile by tile, create optimal gas conditions, manage the needs and moods of their crew, encounter other space-faring groups, and explore the universe in this spaceship colony simulation.
- 6

Planetbase
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Indie with IXION.
Guide a group of space settlers trying to establish a base on a remote planet. Grow food, collect energy, mine resources, survive disasters and build a self-sufficient colony in a harsh and unforgiving environment.
- 7

Against the Storm
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Simulation with IXION.
A dark fantasy city builder where you must rebuild civilization in the face of apocalyptic rains. As the Queen’s Viceroy, lead humans, beavers, lizards, foxes, and harpies to reclaim the wilderness and secure a future for civilization's last survivors.
- 8

Captain of Industry
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Indie with IXION.
Build an industrial empire on a remote island. Mine resources, reshape terrain with excavators, grow food, construct factories, lay train tracks, and trade with the outside world. Research 100+ technologies to advance from basic metal smelting all the way to nuclear power and space flight.
- 9

Stellaris
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Simulation with IXION.
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.
- 10

Factorio
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Indie with IXION.
Factorio is a game about building and creating automated factories to produce items of increasing complexity, within an infinite 2D world. Use your imagination to design your factory, combine simple elements into ingenious structures, and finally protect it from the creatures who don't really like you.
- 11

Cliff Empire
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Indie with IXION.
After a nuclear war life on the surface became impossible. A 300m thick radioactive fog covered the Earth. We are looking for bold active people to manage the process of restoring life on Earth. Join!
- 12

RimWorld
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Indie with IXION.
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

Manor Lords
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Simulation with IXION.
Manor Lords is a medieval strategy game featuring in-depth city building, large-scale tactical battles, and complex economic and social simulations. Rule your lands as a medieval lord – the seasons pass, the weather changes, and cities rise and fall.
- 14

dotAGE
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Indie with IXION.
Village elder, help us! The Apocalypse is approaching, and we need your guidance to survive. Assign your workers and build a thriving village against the pending doom. DotAGE is the merciless survival roguelite turn-based city builder. Will you fulfill the Prophecy?
- 15

Warhammer 40,000: Mechanicus
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy with IXION.
MECHANICUS II ANNOUNCED! Take control of one of the most technologically advanced factions in the Imperium: the Adeptus Mechanicus. In this turn-based tactical game, your every decision will weigh heavily on the outcome of the conflict. Will you be blessed by the Omnissiah?
- 16

Crowntakers
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy and Indie with IXION.
Crowntakers combines turn-based strategy with RPG elements and takes you at the behest of the crown into a medieval fantasy world full of challenging encounters and epic adventures. With its randomly generated world, Crowntakers offers a varied gaming experience every time you set out to fight evil.
- 17

Warhammer 40,000: Mechanicus II
Single-player alternative to IXION — playable solo, no multiplayer required. Shares Strategy with IXION.
Fast-paced tactical combat meets strategic management in this sequel to the acclaimed Warhammer 40,000: Mechanicus. Take control of either the ancient and deathless Necron legions or the techno-religious acolytes of the Omnissiah, with the fate of a world in your hands.