IMHO.

Single-player games like SpacePorts

Below are 8 single-player Steam games similar to SpacePorts, 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 SpacePorts page.

Ranked picks

  1. 1
    Net Worthless — Steam game cover

    Net Worthless

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

    A satirical life-and-money sim. One turn is one month: budget your hours, work the job, ride the market, outlive inflation and your own decisions. Pick a character and make their dream come true. Or at least don't die trying.

    StrategyIndieSimulationSingle-playerSimilar games →
  2. 2
    OIL.EXE — Steam game cover

    OIL.EXE

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

    Drill the wells. Run the refinery. Read the market. OIL is a free text-based simulation of running a petroleum operation, played at a 1980s green-phosphor terminal. End each year richer or bankrupt. Mind the bear market. Climb the leaderboard.

    2026StrategyIndieSimulationFreeSingle-playerSimilar games →
  3. 3
    My Business — Steam game cover

    My Business

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

    My Business is the first realistic game in which you have to become a business shark.

    2021StrategyIndieAdventure2.99 USDSingle-playerSimilar games →
  4. 4
    Knightfall Idle — Steam game cover

    Knightfall Idle

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

    Knightfall Idle is a medieval idle RPG made by Gibber. Gather, process, trade, and fight across 10 skills while your kingdom runs in the background. Join a Fief, raid bandit camps, compete in seasonal leagues, or stay in the permanent realm. 450+ passive tree nodes. Free to play.

    StrategyIndieMassively MultiplayerFreeSingle-playerSimilar games →
  5. 5
    Incremental Orbits — Steam game cover

    Incremental Orbits

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

    A short and relaxing incremental game where you discover planets, launch satellites and make a ton of money.

    2026StrategyIndieSimulationSingle-playerSimilar games →
  6. 6
    A Very Simple Idle Game — Steam game cover

    A Very Simple Idle Game

    Single-player alternative to SpacePorts — playable solo, no multiplayer required. Shares Indie with SpacePorts.

    Idle game with a twist: reward grows while you wait and resets with each purchase. 6 upgrades, 3 currencies, prestige and super upgrades. Simple but deep.

    2026IndieSimulationSingle-playerSimilar games →
  7. 7
    Galactic Economy — Steam game cover

    Galactic Economy

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

    Your road to financial freedom leads to the stars. Acquire strategic sectors, manage complex loans, and mitigate systemic risks to grow your passive income. A gritty sci-fi tycoon strategy game where every decision determines your path to galactic domination.

    2026StrategyIndieSimulationSingle-playerSimilar games →
  8. 8
    Water Polo Manager 2026 — Steam game cover

    Water Polo Manager 2026

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

    Build a water polo club from the office to the pool deck. Manage tactics, transfers, scouting, training, finances, match days, and long-term squad development in an offline single-player sports management simulation.

    2026SportsStrategyIndieSingle-playerSimilar games →