IMHO.

Single-player games like Horizons: The End Of Words

Below are 18 single-player Steam games similar to Horizons: The End Of Words, 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 Horizons: The End Of Words page.

Ranked picks

  1. 1
    WordScoop With Gelato the Otter — Steam game cover

    WordScoop With Gelato the Otter

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie and Casual with Horizons: The End Of Words.

    Classic word-searching returns, cadet!

    2025IndieCasual5.99 USDSingle-playerSimilar games →
  2. 2
    Spelp — Steam game cover

    Spelp

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie with Horizons: The End Of Words.

    The SPELP program needs YOU to annihilate thousands of aliens with a variety of weapons, members and unique capacities. Unlock characters and make up your own team to fit your playstyle.

    2023ActionIndie4.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Space Mercenary Defense Force — Steam game cover

    Space Mercenary Defense Force

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie and Casual with Horizons: The End Of Words.

    Defend against the alien invasion and take down the mother ship! Utilise branching upgrade trees, unlock new ships, and equip permanent upgrades to create your own unique build and defeat the growing hordes of invaders in this sci-fi action roguelike!

    2023ActionIndieRPG4.99 USDSingle-playerSimilar games →
  4. 4
    Galandrix — Steam game cover

    Galandrix

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie and Casual with Horizons: The End Of Words.

    Galandrix is a rogue like arcade game played from a top-down view and features both fast-paced action and real time strategic choices. Select your ship and blast off into the unknown against countless hordes of enemies.

    2024ActionStrategyIndie0.99 USDSingle-playerSimilar games →
  5. 5
    Astrominer — Steam game cover

    Astrominer

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie and Casual with Horizons: The End Of Words.

    Embark on an epic space adventure in AstroMiner, where you must build a base, overcome challenges, and construct a space ship to return home from the asteroid belt.

    2023IndieAdventureCasual0.99 USDSingle-playerSimilar games →
  6. 6
    Star Devil — Steam game cover

    Star Devil

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie with Horizons: The End Of Words.

    Star Devil is a Sci-fi Station Survival Roguelike Game with dynamic alien infection. Playable in both single player and split-screen co-op.

    2022ActionIndieAdventure2.99 USDSingle-playerSimilar games →
  7. 7
    Star Boss — Steam game cover

    Star Boss

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie and Casual with Horizons: The End Of Words.

    Make robots and spaceships,explore the space,fight with aliens.

    2022IndieSimulationCasual7.99 USDSingle-playerSimilar games →
  8. 8
    Weird Worlds: Return to Infinite Space — Steam game cover

    Weird Worlds: Return to Infinite Space

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie and Casual with Horizons: The End Of Words.

    Weird Worlds: Return to Infinite Space is a hybrid roguelike game of space exploration, adventure and starship combat.

    2013StrategyIndieAdventure4.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Scrabble — Steam game cover

    Scrabble

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Casual with Horizons: The End Of Words.

    The fantastically fun crossword game is now specially designed for your PC or Mac. Build words using letter tiles and enjoy quick, easy-to-learn controls and fantastic features. Play solo, compete with the computer, or challenge up to three friends in a Hot Seat challenge. Choose from a variety of game styles.

    2013StrategyCasualSingle-playerSimilar games →
  10. 10
    Dorfromantik — Steam game cover

    Dorfromantik

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie and Casual with Horizons: The End Of Words.

    Dorfromantik is a peaceful building strategy and puzzle game where you create a beautiful and ever-growing village landscape by placing tiles. Explore a variety of colorful biomes, discover and unlock new tiles and complete quests to fill your world with life!

    2022StrategyIndieSimulation13.99 USDDeck VerifiedSingle-playerSimilar games →
  11. 11
    Shotgun King: The Final Checkmate — Steam game cover

    Shotgun King: The Final Checkmate

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie with Horizons: The End Of Words.

    Chess, but you replace your entire army with a royal shotgun. A unique strategy roguelike based on the timeless checkboard classic.

    2022ActionStrategyIndie9.99 USDDeck VerifiedSingle-playerSimilar games →
  12. 12
    The Wratch's Den — Steam game cover

    The Wratch's Den

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie with Horizons: The End Of Words.

    A byte-sized Dungeon Keeping roguelike: dig out your lair, populate it with monsters and protect the Wratch from heroes come for easy prestige.

    2023StrategyIndieSimulation5.99 USDDeck PlayableSingle-playerSimilar games →
  13. 13
    MOONPONG: Tales of Epic Lunacy — Steam game cover

    MOONPONG: Tales of Epic Lunacy

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie with Horizons: The End Of Words.

    Psychedelic Roguelite Pong 'em up where you go to bring back the Moon. A crazy, addictive, and hilarious arcade-action game based on the granddad of all video games.

    2022ActionIndie5.99 USDSingle-playerSimilar games →
  14. 14
    Metavaxx — Steam game cover

    Metavaxx

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required.

    The world's first minesweeper shooter. Identify infected cells, peacefully clear your way around them... or shoot 'em down and face the consequences.

    2023ActionStrategy5.99 USDDeck PlayableSingle-playerSimilar games →
  15. 15
    Spectrum Forces — Steam game cover

    Spectrum Forces

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required.

    Make up your squads out of 9 unique spaceships and go clear 3 planets from hordes of robots in not-so-classic horizontal shoot-em-up style!

    2023Action5.99 USDSingle-playerSimilar games →
  16. 16
    Scavenger of Dunomini — Steam game cover

    Scavenger of Dunomini

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie with Horizons: The End Of Words.

    The world's first match-3 trash pile defender! Protect and manage your pile of garbage while recycling it into deadly defenses against thieving drones.

    2023ActionStrategyIndie5.99 USDDeck VerifiedSingle-playerSimilar games →
  17. 17
    Rush for the Ages — Steam game cover

    Rush for the Ages

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required.

    Remake history and race your opponents for a complete and glorious timeline in this lightning-fast card game.

    2023Strategy3.59 USDDeck PlayableSingle-playerSimilar games →
  18. 18
    Ecstatic — Steam game cover

    Ecstatic

    Single-player alternative to Horizons: The End Of Words — playable solo, no multiplayer required. Shares Indie with Horizons: The End Of Words.

    Rave spider goes to the bullet-hell ball: shoot rockets out of your butt, dodge and destroy waves upon waves of drones, slow down time whenever you don't move.

    2023ActionIndie5.99 USDSingle-playerSimilar games →