IMHO.

Single-player games like Defender Bros

Below are 10 single-player Steam games similar to Defender Bros, 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 Defender Bros page.

Ranked picks

  1. 1
    Haunt Monster — Steam game cover

    Haunt Monster

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

    Haunt Monster is a FPS Action Roguelike game in a random generated environment. Build, defend and survive waves of zombies, monsters and aliens. Play solo or co-op with a friend to survive.

    2024ActionStrategyIndie9.99 USDSingle-playerSimilar games →
  2. 2
    Eternal League — Steam game cover

    Eternal League

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

    Step into a futuristic battleground where every decision shapes your destiny. In Eternal League, you'll embark on an epic journey through a fast-paced roguelike RPG that combines customization, strategic combat, and a unique session-based progression system that rewards your skill and creativity.

    2025ActionIndieRPG5.99 USDSingle-playerSimilar games →
  3. 3
    Keep Keepers — Steam game cover

    Keep Keepers

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

    Tower Defense meets Base Management. Strategically place your defenses. Craft wacky ammunition like fiery peppers and boomerang bananas. Discover amazing weapons and automate your economy while defending against waves of enemies. Can you handle the chaos?

    2024ActionStrategyIndie11.69 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Halo Wars: Definitive Edition — Steam game cover

    Halo Wars: Definitive Edition

    Single-player alternative to Defender Bros — playable solo, no multiplayer required. Shares Strategy with Defender Bros.

    Halo Wars: Definitive Edition is an enhanced version of the real-time strategy classic, Halo Wars, updated to run natively on PC. Halo Wars: Definitive Edition includes improved graphics, new achievements and all of the DLC created for the landmark real-time strategy game.

    2017Strategy19.99 USDDeck VerifiedSingle-playerSimilar games →
  5. 5
    Out of Ammo — Steam game cover

    Out of Ammo

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

    Out of Ammo is an intense VR Tower Defense / FPS hybrid strategy game that will have you constructing defenses, calling in artillery, issuing orders, and taking direct control of your soldiers in order to survive a relentless enemy onslaught.

    2016ActionStrategyIndie9.99 USDSingle-playerSimilar games →
  6. 6
    ENDLESS™ Dungeon - Definitive Edition — Steam game cover

    ENDLESS™ Dungeon - Definitive Edition

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

    ENDLESS™ Dungeon is a Rogue-lite Tactical Action game, set in the award-winning ENDLESS™ Universe. Recruit a team of shipwrecked heroes, plunge into a long-abandoned space station, and protect your crystal against never-ending waves of monsters… or die trying, get reloaded, and try again.

    2023ActionStrategy14.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    McDROID — Steam game cover

    McDROID

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

    Farm, Build, Defend, in the Galaxy's only Arcade-Tower-Defense.

    2014ActionStrategyIndie9.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Emberward — Steam game cover

    Emberward

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

    Build twisting mazes with tetromino blocks and deploy unique towers in this strategic roguelite tower defense adventure!

    2024StrategyIndieEarly Access14.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Comatose — Steam game cover

    Comatose

    Single-player alternative to Defender Bros — playable solo, no multiplayer required. Shares Action and Early Access with Defender Bros.

    Explore your decaying mind in this story driven retro survival horror FPS. Manage scarce resources, solve puzzles, and fight your way back to the living.

    2026ActionAdventureEarly Access6.74 USDSingle-playerSimilar games →
  10. 10
    Treasure Tiger — Steam game cover

    Treasure Tiger

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

    You’ve got five nights to strike it rich and save your future. All you have to do is spin, survive, and keep the windows shut. Treasure Tiger is out there — grinning, watching, waiting. He says it’s all about luck… but he’s not here to play fair.

    2025IndieSimulation2.49 USDSingle-playerSimilar games →