IMHO.

Single-player games like Ancient Planet Tower Defense

Below are 10 single-player Steam games similar to Ancient Planet 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 Ancient Planet Tower Defense page.

Ranked picks

  1. 1
    Super Sanctum TD — Steam game cover

    Super Sanctum TD

    Single-player alternative to Ancient Planet Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Ancient Planet Tower Defense.

    Super Sanctum TD is a retro-styled Tower Defense game that focuses on strategy, customization and replayability. Build advanced mazes and construct powerful towers to prevent alien hordes from reaching the Core!

    2013StrategyIndieCasual0.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Neighbourhood Loot — Steam game cover

    Neighbourhood Loot

    Single-player alternative to Ancient Planet Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Ancient Planet Tower Defense.

    THIEVES...Everywhere...But it's enough, No More, Time to take back YOUR Neighbourhood! Fight Back with all you have in this comedic, cartoonish themed strategic tower defence, created to give you hours of replayability and ridiculous mayhem. WELCOME to NEIGHBOURHOOD LOOT Good Citizen!

    2019StrategyIndieCasual4.99 USDSingle-playerSimilar games →
  3. 3
    Sleep Attack — Steam game cover

    Sleep Attack

    Single-player alternative to Ancient Planet Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Ancient Planet Tower Defense.

    Enjoy an amazing new TWIST in Tower Defense! You control the layout of the battlefield, and you decide the paths your enemies follow!

    2015StrategyIndieCasual6.99 USDSingle-playerSimilar games →
  4. 4
    BeeFense — Steam game cover

    BeeFense

    Single-player alternative to Ancient Planet Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Ancient Planet Tower Defense.

    Build a fortress! Defend your honey! Be the bee!

    2017ActionStrategyIndieSingle-playerSimilar games →
  5. 5
    Fort Defense — Steam game cover

    Fort Defense

    Single-player alternative to Ancient Planet Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Ancient Planet Tower Defense.

    All hands on deck! Pirate armada dead ahead! Take part in an uncompromising struggle repelling freebooters' assaults. Watch out, the enemy may catch the tide for ruining your fortress. Build towers, collect crystals, upgrade spells and believe in your victory!

    2015StrategyIndieAdventure14.99 USDSingle-playerSimilar games →
  6. 6
    Two Point Campus — Steam game cover

    Two Point Campus

    Single-player alternative to Ancient Planet Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Ancient Planet Tower Defense.

    Build the university of your dreams with Two Point Campus, the sim with a twist from the makers of Two Point Hospital. Build, hire staff and run an academic institution packed with wild courses.

    2022StrategyIndieSimulation29.99 USDDeck VerifiedSingle-playerSimilar games →
  7. 7
    Deathtrap — Steam game cover

    Deathtrap

    Single-player alternative to Ancient Planet Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Ancient Planet Tower Defense.

    Deathtrap is a Tower Defense game with strong action-RPG elements, a game of vicious tricks, killing machines, rotating blades and splattering blood.

    2015ActionStrategyIndie19.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Iron Sea Defenders — Steam game cover

    Iron Sea Defenders

    Single-player alternative to Ancient Planet Tower Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Ancient Planet Tower Defense.

    Man the guns! The enemy fleet is on the horizon! Defend your fort from attacks – show your tactical skill.

    2016ActionSportsStrategy14.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Garden Rescue: Christmas Edition — Steam game cover

    Garden Rescue: Christmas Edition

    Single-player alternative to Ancient Planet Tower Defense — playable solo, no multiplayer required. Shares Strategy and Casual with Ancient Planet Tower Defense.

    Rescue the Christmas trees from swarms of ravenous insects.

    2015StrategyCasual3.99 USDSingle-playerSimilar games →
  10. 10
    Kingdom Run VR — Steam game cover

    Kingdom Run VR

    Single-player alternative to Ancient Planet Tower Defense — playable solo, no multiplayer required. Shares Indie with Ancient Planet Tower Defense.

    Kingdom Run VR is an action-packed fitness game; explore trapped tombs, avoid dangers, collect gems and eliminate enemies!

    2023ActionIndieAdventure3.99 USDSingle-playerSimilar games →
Single-player games like Ancient Planet Tower Defense — 10 solo picks · imho.run