IMHO.

Single-player games like Abyss Horde

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

Ranked picks

  1. 1
    Loki's Revenge — Steam game cover

    Loki's Revenge

    Single-player alternative to Abyss Horde — playable solo, no multiplayer required. Shares Action and Strategy with Abyss Horde.

    Loki’s Revenge is a survivors-like roguelite where you play as Norse gods fighting Loki’s army of monsters! Level up to gain powerful upgrades and explore hand-crafted maps to find secrets. Build the ultimate overpowered god with permanent upgrades and master each god’s signature ability.

    2025ActionStrategyIndie1.99 USDSingle-playerSimilar games →
  2. 2
    Mining Survivors — Steam game cover

    Mining Survivors

    Single-player alternative to Abyss Horde — playable solo, no multiplayer required. Shares Action and Strategy with Abyss Horde.

    Incremental Survivors-like in which you mine valuable resources whilst slaying hoards of enemies.

    2025ActionStrategyIndie4.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Void Miner – Incremental Asteroids Roguelite — Steam game cover

    Void Miner – Incremental Asteroids Roguelite

    Single-player alternative to Abyss Horde — playable solo, no multiplayer required. Shares Action and Strategy with Abyss Horde.

    Blast. Collect. Upgrade. Repeat. Void Miner is a retro-inspired roguelite asteroid shooter where you pilot a space ship and manage an automated tower to destroy endless fields of chaos. Dodge, blast, and harvest your way through waves of asteroids in a fast-paced loop of destruction and progression.

    2025ActionStrategyIndie5.99 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Towerful Defense: A Rogue TD — Steam game cover

    Towerful Defense: A Rogue TD

    Single-player alternative to Abyss Horde — playable solo, no multiplayer required. Shares Action and Strategy with Abyss Horde.

    A roguelike tower defense where you control a single tower to fight against hordes of aliens coming from all directions. Pick your tower, equip up to 4 skills, and choose from a variety of traits and unique effect items to craft powerful builds that lead you to victory.

    2024ActionStrategyIndie2.49 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Sexy Mystic Survivors — Steam game cover

    Sexy Mystic Survivors

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

    Roguelite bullet-hell combat meets sexy anime action in Sexy Mystic Survivors, as you rise to the occasion to help gorgeous heroines destroy countless invading monsters. Plan your builds, upgrade heroines, and survive against the clock. Keep the heroines alive and they’ll be sure to reward you!

    2022ActionIndieRPG9.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Maktala: Slime Lootfest — Steam game cover

    Maktala: Slime Lootfest

    Single-player alternative to Abyss Horde — playable solo, no multiplayer required. Shares Action and Strategy with Abyss Horde.

    An incremental game where you kill hordes of slimes and use their loot to become stronger and farm them. Collect powerful loot, master skills, and uncover tons of content.

    2025ActionStrategyIndie4.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Legacy of Defense — Steam game cover

    Legacy of Defense

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

    Become the hero who protects the fantasy world and stop the monster invasion! 'Legacy of Defense' combines defense with deck-building. Build your deck, use powerful skills, gain experience, upgrade, clear stages, and defeat the final boss. Ready to test your strategy and luck?

    2025StrategyIndieSimulation3.59 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Genome Guardian 2 — Steam game cover

    Genome Guardian 2

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

    COMBINE WEAPONS in the microscopic shooter with macroscopic depth. BUILD YOUR NANOBOT from hundreds of parts. SURVIVE the microbial onslaught once more in this psychedelic dive to the Abyss, full of mutations, minerals, anomalies and powerup polyps. SHMUP mode turns it into a vertical shoot 'em up!

    2026ActionIndieRPG15.99 USDDeck PlayableSingle-playerSimilar games →