IMHO.

Single-player games like MergeTD

Below are 9 single-player Steam games similar to MergeTD, 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 MergeTD page.

Ranked picks

  1. 1
    Merge Chess — Steam game cover

    Merge Chess

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

    A brand new approach to Chess!

    2021StrategyIndieCasual0.99 USDSingle-playerSimilar games →
  2. 2
    Zombie Parking Lot Defense — Steam game cover

    Zombie Parking Lot Defense

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

    Night has fallen on the parking lot. Your car is the last stand. Fortify it with turrets built from scavenged auto parts and hold back the endless zombie horde. A fast, replayable tower defense with roguelite upgrades, deadly bosses, and one rule: survive one more wave.

    StrategyIndieCasualSingle-playerSimilar games →
  3. 3
    Warnet — Steam game cover

    Warnet

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

    Outmaneuver, outbuild, outthink. In Warnet, the map is your ally and your enemy - master its properties, and you master victory.

    ActionStrategyIndieSingle-playerSimilar games →
  4. 4
    ChessBase 17 Steam Edition — Steam game cover

    ChessBase 17 Steam Edition

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

    ChessBase is a personal, stand-alone chess database that has become the standard throughout the world. Everyone uses ChessBase, from the World Champion to the amateur next door. It is the program of choice for anyone who loves the game and wants to know more about it.

    2023SportsStrategy129.99 USDSingle-playerSimilar games →
  5. 5
    PathSketch — Steam game cover

    PathSketch

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

    PathSketch is a classic puzzle-solving game.

    2025StrategyIndieAdventure0.99 USDSingle-playerSimilar games →
  6. 6
    Digital Revolution — Steam game cover

    Digital Revolution

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

    This is a casual game that combines math and basic elimination gameplay. If you're confident in your math skills, give it a try! In the game, you'll decide the direction of all the "blocks" and gradually strengthen the "Blue Legion" to defeat the evil "Red Legion."

    2025StrategyIndieCasual1.99 USDSingle-playerSimilar games →
  7. 7
    Vektor Chess — Steam game cover

    Vektor Chess

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

    Four-dimensional chess, rendered in three-dimensional space. Move pieces across a board eight layers deep, shift their phase between Small, Regular, and Large along a hidden fourth axis, and capture only when position and state align. Play solo, locally, or online.

    2026StrategyIndieCasualSingle-playerSimilar games →
  8. 8
    Magic Bubbles — Steam game cover

    Magic Bubbles

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

    A classic puzzle both simple and challenging. It offers an engaging gameplay that will exercise cognitive skills like strategy, logic and problem-solving. With charming graphics, relaxing sound effects and availability on multiple platforms, Magic Bubbles is a must play for gamers of all ages.

    2022StrategyIndieCasual3.99 USDSingle-playerSimilar games →
  9. 9
    Winter Hunting — Steam game cover

    Winter Hunting

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

    《Winter Hunting》is a RogueLite match-3 game. As a blizzard approaches, matching tile to hunt beasts, gather firewood and grow stronger. Race against time to get yourself home and win!

    StrategyIndieCasualSingle-playerSimilar games →