IMHO.

Single-player games like STARLINERS

Below are 10 single-player Steam games similar to STARLINERS, 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 STARLINERS page.

Ranked picks

  1. 1
    Cosmic Ascent — Steam game cover

    Cosmic Ascent

    Single-player alternative to STARLINERS — playable solo, no multiplayer required. Shares Strategy with STARLINERS.

    Build and expand an orbital station in this idle/incremental space colony sim. Manage crew, resources, refinery chains, research and ship expeditions as you progress from Earth orbit toward new planets.

    StrategyIndieSimulationSingle-playerSimilar games →
  2. 2
    ORACLE: Humanity, Automated — Steam game cover

    ORACLE: Humanity, Automated

    Single-player alternative to STARLINERS — playable solo, no multiplayer required. Shares Strategy with STARLINERS.

    Raise a civilization from its first campfire to the age of artificial intelligence in this contemplative idle strategy game. Assign people, grow knowledge, automate every human craft, and listen as ORACLE remembers what progress creates—and what it quietly leaves behind.

    2026StrategyIndieSimulation8.49 USDSingle-playerSimilar games →
  3. 3
    Asteroid Colony — Steam game cover

    Asteroid Colony

    Single-player alternative to STARLINERS — playable solo, no multiplayer required. Shares Strategy with STARLINERS.

    In this real time strategy city builder game you will help humanity in reaching beyond earth by establishing a permanent and thriving settlement in the asteroid belt. Settling in space comes with enormous challenges and dangers, which you will have to guide your people through

    2024ActionStrategyIndie5.99 USDSingle-playerSimilar games →
  4. 4
    Fleshborn — Steam game cover

    Fleshborn

    Single-player alternative to STARLINERS — playable solo, no multiplayer required. Shares Strategy with STARLINERS.

    A short incremental game where you are tasked to clean a lab from fleshy growths using your flamethrower. Collect resources and spend them in a vast upgrade tree to unlock new abilities.

    2026StrategySimulationCasualSingle-playerSimilar games →
  5. 5
    Deep Space Observatory — Steam game cover

    Deep Space Observatory

    Single-player alternative to STARLINERS — playable solo, no multiplayer required. Shares Strategy with STARLINERS.

    Scan the stars, unlock technologies, automate data collection, and build an ever more efficient observatory.

    StrategyIndieSimulationSingle-playerSimilar games →
  6. 6
    Singularity Simulator: Click Is All You Need — Steam game cover

    Singularity Simulator: Click Is All You Need

    Single-player alternative to STARLINERS — playable solo, no multiplayer required. Shares Strategy with STARLINERS.

    A clicker/incremental game where you run an AI development company and aim for the technological singularity. Click to write code, hire researchers, build data centers, and turn the galaxy into computing resources.

    2027StrategyIndieSimulationSingle-playerSimilar games →
  7. 7
    Sector Scavengers: Signal & Salvage — Steam game cover

    Sector Scavengers: Signal & Salvage

    Single-player alternative to STARLINERS — playable solo, no multiplayer required. Shares Strategy with STARLINERS.

    Deck-building roguelike built on top of a basebuilding RPG. Wake into debt. Scavenge derelicts. Play risky cards. Die a lot. Every collapse unlocks new cards and perks. Can you pay off the Company, or will you be booted out the nearest airlock when the next bill comes due?

    2026StrategyIndieAdventureSingle-playerSimilar games →
  8. 8
    Mars Clicker — Steam game cover

    Mars Clicker

    Single-player alternative to STARLINERS — playable solo, no multiplayer required. Shares Strategy with STARLINERS.

    Click crystals until they crack. Automate the grind. Reset everything on purpose for a permanent power spike. Mars Clicker is an idle clicker / incremental game where every prestige run makes the next one faster — and ACE will remind you it's for your own efficiency.

    StrategyIndieSimulationSingle-playerSimilar games →
  9. 9
    Shockwaves — Steam game cover

    Shockwaves

    Single-player alternative to STARLINERS — playable solo, no multiplayer required. Shares Strategy with STARLINERS.

    Shockwaves is a captivating merging puzzle game where strategic placement creates powerful shockwaves, pushing and merging numbers. Challenge yourself with endless scoring or solve intricate puzzles.

    2024StrategyIndieFree To PlayFreeSingle-playerSimilar games →
  10. 10
    Radiant Rush — Steam game cover

    Radiant Rush

    Single-player alternative to STARLINERS — playable solo, no multiplayer required.

    Drift through psychedelic, retro-futuristic worlds that evolve in sync with a synthwave soundtrack. Embark on a cinematic journey through the stars to restore harmony to the galaxy.

    ActionSportsRacingSingle-playerSimilar games →