IMHO.

Single-player games like Gravity Assist: Initiative

Below are 9 single-player Steam games similar to Gravity Assist: Initiative, 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 Gravity Assist: Initiative page.

Ranked picks

  1. 1
    Backseat Champions — Steam game cover

    Backseat Champions

    Single-player alternative to Gravity Assist: Initiative — playable solo, no multiplayer required. Shares Simulation and Early Access with Gravity Assist: Initiative.

    Manage your driver in short, tactical races. Rapidly choose from dozens of upgrades each race. Use tire compounds to shape your strategy. Machine-learned drivers make every race unpredictable. Can you become the Champion?

    2026StrategySimulationEarly AccessSingle-playerSimilar games →
  2. 2
    Omnichess: Chess Variants — Steam game cover

    Omnichess: Chess Variants

    Single-player alternative to Gravity Assist: Initiative — playable solo, no multiplayer required. Shares Indie and Casual with Gravity Assist: Initiative.

    Omnichess is the game that allows you to design and play your very own chess variants! With AI and online play there are a huge variety of options: 2-8 players • Square, hexagonal, or triangular tiled boards • Rule alterations • Timer options • Customised pieces

    2022StrategyIndieCasual49.99 USDSingle-playerSimilar games →
  3. 3
    Over Package! — Steam game cover

    Over Package!

    Single-player alternative to Gravity Assist: Initiative — playable solo, no multiplayer required. Shares Indie and Casual with Gravity Assist: Initiative.

    Over Package! is a chaotic, physics-based multiplayer party game. Clash with your friends in hilarious arena brawls to deliver cargo. Outsmart rivals with dynamic environmental destruction, leverage chaotic physics, and turn every delivery into absolute combat logistics madness!

    2027ActionIndieCasualSingle-playerSimilar games →
  4. 4
    STELLATUM — Steam game cover

    STELLATUM

    Single-player alternative to Gravity Assist: Initiative — playable solo, no multiplayer required. Shares Indie and Simulation with Gravity Assist: Initiative.

    Equip your battleship's guns, install faster engines, and increase the power of your reactor. Throw a barrage of rockets on hordes of enemy ships, burning everything in your path!

    2015ActionIndieSimulation2.99 USDSingle-playerSimilar games →
  5. 5
    10 Pin Bowling (VR Support) — Steam game cover

    10 Pin Bowling (VR Support)

    Single-player alternative to Gravity Assist: Initiative — playable solo, no multiplayer required. Shares Simulation and Early Access with Gravity Assist: Initiative.

    we`ve all been down to our local bowling alley to play. But ended up having to wait for hours to get a lane. Don`t waste anymore more time, run the game up and play. No more waiting, just straight to the fun part. Multiplayer on one pc sharing your headset.

    2021SportsSimulationEarly Access10.99 USDSingle-playerSimilar games →
  6. 6
    Celestis — Steam game cover

    Celestis

    Single-player alternative to Gravity Assist: Initiative — playable solo, no multiplayer required. Shares Indie and Casual with Gravity Assist: Initiative.

    Celestis is a real-time strategy game where the goal is to take control of the procedural galaxy by capturing stars.

    2024StrategyIndieCasual4.99 USDSingle-playerSimilar games →
  7. 7
    Pure Badminton — Steam game cover

    Pure Badminton

    Single-player alternative to Gravity Assist: Initiative — playable solo, no multiplayer required. Shares Indie and Simulation with Gravity Assist: Initiative.

    Pure Badminton is the most realistic Badminton simulation game.Experience the sensations of badminton, in a fast, technical and strategical game.

    2025SportsIndieSimulation19.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Rugby Challenge 4 — Steam game cover

    Rugby Challenge 4

    Single-player alternative to Gravity Assist: Initiative — playable solo, no multiplayer required. Shares Simulation with Gravity Assist: Initiative.

    READY FOR THE CROSS KICK?

    2021SportsSimulationSingle-playerSimilar games →
  9. 9
    Comet Dudes — Steam game cover

    Comet Dudes

    Single-player alternative to Gravity Assist: Initiative — playable solo, no multiplayer required. Shares Indie and Casual with Gravity Assist: Initiative.

    A colorful, screen-wrapping arcade space shooter for solo, local, and online multiplayer. Dodge asteroids, blast enemies, collect powerful abilities, and build a one-of-a-kind ship—alone or with questionably helpful friends.

    2026ActionIndieFree To PlayFreeSingle-playerSimilar games →