IMHO.

Single-player games like 星海的流言

Below are 9 single-player Steam games similar to 星海的流言, 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 星海的流言 page.

Ranked picks

  1. 1
    Space Mine Raider — Steam game cover

    Space Mine Raider

    Single-player alternative to 星海的流言 — playable solo, no multiplayer required. Shares Action and Indie with 星海的流言.

    Space Mine Raider is a mining and bullet hell incremental game with a focus on strong power progression and combat. Warp in, mine resources, fight enemies and bosses, and extract with your spoils to upgrade your ship.

    2026ActionStrategyIndieSingle-playerSimilar games →
  2. 2
    Slipspace Panic — Steam game cover

    Slipspace Panic

    Single-player alternative to 星海的流言 — playable solo, no multiplayer required. Shares Action and Indie with 星海的流言.

    A trip through slipspace gone awry. Shoot and evade waves of attackers for your freedom in this twin-stick shooter micro-game!

    2026ActionIndieFree To PlayFreeSingle-playerSimilar games →
  3. 3
    Shin Galaxy - Alpha War — Steam game cover

    Shin Galaxy - Alpha War

    Single-player alternative to 星海的流言 — playable solo, no multiplayer required. Shares Action and Indie with 星海的流言.

    A space shooter game with RPG mechanics. Players will be able to improve their ships to tackle the challenges ahead, as well as buy better ships and customize them.

    2022ActionIndieRPG2.99 USDSingle-playerSimilar games →
  4. 4
    HyperFeat — Steam game cover

    HyperFeat

    Single-player alternative to 星海的流言 — playable solo, no multiplayer required. Shares Action and Indie with 星海的流言.

    A top down 2D space shooter bullethell with roguelike elements awaits you. Dodge, weave and shoot your way through waves of enemies while gaining upgrades trying to survive as long as possible.

    2021ActionIndie2.99 USDSingle-playerSimilar games →
  5. 5
    Galactic Mecha GunSuit — Steam game cover

    Galactic Mecha GunSuit

    Single-player alternative to 星海的流言 — playable solo, no multiplayer required. Shares Action and Indie with 星海的流言.

    A linear danmaku shoot-em-up with some visual novel elements. Clear 6 stages across 4 difficult settings, each with unique enemy spawns, bullet patterns and boss phases. The game is structured to have each difficulty cleared in sequence, with the full plot unfolding across each one. 

    2026ActionIndie7.69 USDSingle-playerSimilar games →
  6. 6
    Space Horde Attack — Steam game cover

    Space Horde Attack

    Single-player alternative to 星海的流言 — playable solo, no multiplayer required. Shares Action and Indie with 星海的流言.

    Collect weapons and destroy enemy ships

    2024ActionIndieSimulation6.99 USDSingle-playerSimilar games →
  7. 7
    Dark Old Sun II: Unspace — Steam game cover

    Dark Old Sun II: Unspace

    Single-player alternative to 星海的流言 — playable solo, no multiplayer required. Shares Action and Indie with 星海的流言.

    In Dark Old Sun II: UNSPACE, embark on an epic journey through a decaying universe. This exploratory roguelike features the looming threat of UNSPACE, as the mighty sun fades and humanity weakens. Equip various weapons that grow increasingly powerful.

    2024ActionIndie14.99 USDSingle-playerSimilar games →
  8. 8
    ShapeNeon Chaos — Steam game cover

    ShapeNeon Chaos

    Single-player alternative to 星海的流言 — playable solo, no multiplayer required. Shares Action and Indie with 星海的流言.

    ShapeNeon Chaos is an old school style space-shooter. You are a ship facing off waves of deadly enemies. This game was made to give you a shot of adrenaline in a couple of minutes. Lots of bullets and neon in an arcade psychedelic shooter!

    2021ActionIndieCasual1.99 USDSingle-playerSimilar games →
  9. 9
    星河的约言 — Steam game cover

    星河的约言

    Single-player alternative to 星海的流言 — playable solo, no multiplayer required. Shares Indie with 星海的流言.

    What is Mechanical Technology? Raw Materials, Logistics, Automation. What is Magical Technology? Magic Power, Attributes, Incantation Arts. As a model youth in the interstellar age, what will you choose? Why ask such an archaic question in this era? Of course, I'll take it all.

    StrategyIndieEarly AccessSingle-playerSimilar games →