IMHO.

Single-player games like Martian Invaders

Below are 15 single-player Steam games similar to Martian Invaders, 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 Martian Invaders page.

Ranked picks

  1. 1
    Cosmic Cruiser — Steam game cover

    Cosmic Cruiser

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action with Martian Invaders.

    In this unique shooter from 1984. take on the role of a pilot of an out-dated Cosmic Cruiser, fighting to rescue the crew of a distant space station that had been captured by a raiding party from the sinister Rallom Empire.

    2022Action2.99 USDSingle-playerSimilar games →
  2. 2
    Stop the Saturnians! — Steam game cover

    Stop the Saturnians!

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action with Martian Invaders.

    Stop the Saturnians is a shooter inspired by classic arcade games. Dodge enemy fire, destroy procedurally generated alien waves and fight massive bosses. Collect resources in the midst of combat to upgrade your ship or improve Earth's defenses. Protect yourself and the planet both!

    2022Action4.99 USDSingle-playerSimilar games →
  3. 3
    Dwarf Star — Steam game cover

    Dwarf Star

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action and Indie with Martian Invaders.

    Dwarf Star: 16 bit inspired game where mercenary go shoot shoot on evil alien guys who were accidentally fabricated by the government. Top down space shooter with a mission based structure. However, you can do these missions in plenty of different orders with different amounts of upgrades.

    2022ActionIndieCasual4.99 USDSingle-playerSimilar games →
  4. 4
    Space Warpster — Steam game cover

    Space Warpster

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action and Indie with Martian Invaders.

    A fast-paced retro arcade shooter inspired by classic 1980s side-scrolling space combat. Weave through organic obstacles, survive relentless enemy waves, and defeat powerful end-level bosses in a pure, skill-driven singleplayer experience.

    2026ActionIndie4.24 USDSingle-playerSimilar games →
  5. 5
    Netherspace — Steam game cover

    Netherspace

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action and Indie with Martian Invaders.

    A sci-fi shoot'em'up game with heavy focus on upgrades experimentation, featuring two unlikely heroes that must work perfectly together, despite their share of secrets, to surpass their limits and succeed in eliminating a threat that might destroy both Earth and Andraxia if left unchecked.

    2021ActionIndieFree To PlayFreeDeck PlayableSingle-playerSimilar games →
  6. 6
    Invaders from the Third Dimension — Steam game cover

    Invaders from the Third Dimension

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action and Indie with Martian Invaders.

    A retro space shooter with a twist - now you can rotate your ship and aim diagonally at enemies, adding a whole new dimension to the shoot 'em up genre.

    2023ActionIndieCasual0.99 USDSingle-playerSimilar games →
  7. 7
    Spaceman Defender — Steam game cover

    Spaceman Defender

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action and Indie with Martian Invaders.

    Defend the Little Spaceman Dudes from aliens! Blast waves of Alien Abductors and UFOs across 50 challenging levels in this fast-paced ’80s-style arcade space shooter.

    2019ActionIndie1.99 USDSingle-playerSimilar games →
  8. 8
    Insectipede — Steam game cover

    Insectipede

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action and Indie with Martian Invaders.

    Time to bug out and blast back in this arcade shooter packed with waves of insects and UFOs. Fight through 50 challenging stages, grab power-ups, and chase the high score.

    2019ActionIndieCasual0.99 USDSingle-playerSimilar games →
  9. 9
    The Ultimate Trivia Challenge — Steam game cover

    The Ultimate Trivia Challenge

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

    How well do you know your trivia? Choose from 9 popular categories and challenge friends and family in Party Mode (up to 4 players).

    2017IndieCasual4.99 USDSingle-playerSimilar games →
  10. 10
    Super Arcade Boy in Defender of Planet Earth — Steam game cover

    Super Arcade Boy in Defender of Planet Earth

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action and Indie with Martian Invaders.

    A retro-style classic side-scrolling shoot ’em up. Fly Super Arcade Boy through 8 levels, blast enemy waves, grab power-ups, and take down bosses.

    2017ActionIndie1.99 USDSingle-playerSimilar games →
  11. 11
    Brick Breaker Premium — Steam game cover

    Brick Breaker Premium

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action and Indie with Martian Invaders.

    The classic brick-breaker game is back! 35 challenging levels to complete with that classic brick breaker feel, heroic storyline, and classic power-ups. Unlock the ending cutscenes—if you’ve got the skill to make it that far.

    2018ActionIndie0.99 USDSingle-playerSimilar games →
  12. 12
    Brick Breaker Premium 3 — Steam game cover

    Brick Breaker Premium 3

    Single-player alternative to Martian Invaders — playable solo, no multiplayer required. Shares Action and Indie with Martian Invaders.

    The arcade classic returns with the trilogy finale. Blast through 50 new levels to wipe out The Evil Snarfers for good. Use classic power-ups and the new Multi-Shot Laser Paddle to save Earth—and unlock the final ending cutscenes.

    2018ActionIndie0.99 USDSingle-playerSimilar games →
  13. 13
    Trivia King — Steam game cover

    Trivia King

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

    Challenge yourself in Trivia King or play Party Mode (up to 4 players). Includes 8 popular categories and thousands of multiple-choice questions.

    2018IndieCasual0.99 USDSingle-playerSimilar games →
  14. 14
    The Movie Trivia Challenge — Steam game cover

    The Movie Trivia Challenge

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

    How well do you know your movies? Choose from 9 fan-favorite categories and challenge friends and family in Party Mode (up to 4 players).

    2018IndieCasual0.99 USDSingle-playerSimilar games →
  15. 15
    Retro Racers 2 — Steam game cover

    Retro Racers 2

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

    Retro Racers 2 delivers top-down arcade racing with 12 tracks to unlock, four classic power-ups, and hazards that punish mistakes. Time gate openings for an edge, dodge sudden oil slicks, and race in smooth 60FPS HD.

    2018IndieRacing0.99 USDSingle-playerSimilar games →