IMHO.

Single-player games like Colony Defense - Tower Defense

Below are 12 single-player Steam games similar to Colony Defense - Tower Defense, 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 Colony Defense - Tower Defense page.

Ranked picks

  1. 1
    Malón — Steam game cover

    Malón

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Action and Strategy with Colony Defense - Tower Defense.

    From the plains in the Pampas to the most hostile places in the untamed Patagonia: Manage your own frontier outpost, build new structures, train soldiers, and survive relentless attacks from the enemy.

    2026ActionStrategyIndie4.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Budget Defense — Steam game cover

    Budget Defense

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Action and Strategy with Colony Defense - Tower Defense.

    During the day, he personally drove the war vehicle to attack the enemy. At night, he extracted oil to sell and use the money to build defense towers, working together to protect the base.

    2026ActionStrategyIndieSingle-playerSimilar games →
  3. 3
    By the King's Command — Steam game cover

    By the King's Command

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Strategy with Colony Defense - Tower Defense.

    Build up your little kingdom, strategically placing buildings to generate gold in defensible locations, then defend against invaders in brutal real-time tactics.

    2026StrategySingle-playerSimilar games →
  4. 4
    Cosmic Robots — Steam game cover

    Cosmic Robots

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Action and Strategy with Colony Defense - Tower Defense.

    Defend your planet from waves of robot invaders! Build powerful turrets, upgrade your defenses, and command robot units to fight drones, tanks, and massive bosses. Then send your own forces to attack the enemy planet in this action-packed sci-fi tower defense game.

    2026ActionStrategySimulation5.09 USDSingle-playerSimilar games →
  5. 5
    Mechs V Kaijus 2 — Steam game cover

    Mechs V Kaijus 2

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Action and Strategy with Colony Defense - Tower Defense.

    Mechs V Kaijus 2 is an Hybrid Tower/Base defense, with army vs army (tug of war style) tactics. From the cockpit of a mech, to build a huge base with Reactors, Mines and all type of tower army factories and super weapons. 

    ActionStrategyIndieSingle-playerSimilar games →
  6. 6
    Action & Automation — Steam game cover

    Action & Automation

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Action and Strategy with Colony Defense - Tower Defense.

    Fight directly as a Commander while your automated base keeps working. Gather physical Nuts, build modules and logistics routes, and master three asymmetric machine species in a 2D action-strategy battlefield.

    ActionStrategySingle-playerSimilar games →
  7. 7
    Moongrave — Steam game cover

    Moongrave

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Action and Strategy with Colony Defense - Tower Defense.

    Moongrave is a roguelite tower defense. Rebuild your underground city, summon a crystal to the surface to repel hordes of monsters, erect turrets, cast powerful spells, and gather resources to strengthen your village and uncover the secrets of the fallen Moon.

    ActionStrategyIndieSingle-playerSimilar games →
  8. 8
    Blood Moon: Last Stand — Steam game cover

    Blood Moon: Last Stand

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Action and Strategy with Colony Defense - Tower Defense.

    ‘Blood Moon: Last Stand’ is an action-strategy game set in Xianxia, blending wave defense, real-time control, and roguelike deck-building. Command up to three cultivators, forge unique builds, and withstand relentless hordes and bosses. Survive seven days to overturn fate.

    ActionStrategyIndieSingle-playerSimilar games →
  9. 9
    Halloween Games for Toddlers and Kids — Steam game cover

    Halloween Games for Toddlers and Kids

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Indie and Casual with Colony Defense - Tower Defense.

    A lovingly designed Halloween puzzle learning game for small preschool children. It contains an animal memory find the pairs game that you can play against a cat as your opponent. For fearless children or you have your diaper ready!

    2023IndieCasual6.99 USDSingle-playerSimilar games →
  10. 10
    Find The Pairs Memo Game for Kids — Steam game cover

    Find The Pairs Memo Game for Kids

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Indie and RPG with Colony Defense - Tower Defense.

    No friend nearby to play with? Then just play Find the pairs of picture cards against an intelligent, funny cat!

    2023IndieSimulationRPG6.99 USDSingle-playerSimilar games →
  11. 11
    Animal Farm Jigsaw Games for Toddlers, Babys and Kids — Steam game cover

    Animal Farm Jigsaw Games for Toddlers, Babys and Kids

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Indie and Casual with Colony Defense - Tower Defense.

    The ultimate farm children's game with lots of animal puzzles and farm motifs. The perfect learning game for all children, toddlers, babies, jigsaw puzzle and animal lovers. Familyfriendly!

    2024IndieSimulationCasual8.99 USDSingle-playerSimilar games →
  12. 12
    Funny Farm Learning Games for Toddlers and Kids — Steam game cover

    Funny Farm Learning Games for Toddlers and Kids

    Single-player alternative to Colony Defense - Tower Defense — playable solo, no multiplayer required. Shares Indie and RPG with Colony Defense - Tower Defense.

    Does your child like farm animals, farm life, animated puzzles and want to learn their first colors, shapes and sizes? Then get your child our new Farm Games educational game, which includes different animated levels and a ton of fun.

    2024IndieSimulationRPG7.99 USDSingle-playerSimilar games →