IMHO.

Single-player games like World Tree Defender - Seedlings of Yggdrasil

Below are 8 single-player Steam games similar to World Tree Defender - Seedlings of Yggdrasil , 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 World Tree Defender - Seedlings of Yggdrasil page.

Ranked picks

  1. 1
    Rogue Realm: Guardian Grids — Steam game cover

    Rogue Realm: Guardian Grids

    Single-player alternative to World Tree Defender - Seedlings of Yggdrasil — playable solo, no multiplayer required. Shares Strategy and Indie with World Tree Defender - Seedlings of Yggdrasil .

    Rogue Realm: Guardian Grids is a medieval fantasy blend of tower defense and roguelike progression. Build defenses on a grid, manage resources, and survive ever-evolving enemies.

    2026StrategyIndie10.39 USDSingle-playerSimilar games →
  2. 2
    Dynasty Game 2 — Steam game cover

    Dynasty Game 2

    Single-player alternative to World Tree Defender - Seedlings of Yggdrasil — playable solo, no multiplayer required. Shares Strategy with World Tree Defender - Seedlings of Yggdrasil .

    Core gameplay of the game: operate on a large map, farm, recruit talents, govern, create, trade, build armies, conquer cities and territories, and defend strategic passes to ensure the safety of one side. Suitable for players who enjoy governing the country, farming, and opening up new territories 

    2025StrategySimulation7.99 USDSingle-playerSimilar games →
  3. 3
    Alethra — Steam game cover

    Alethra

    Single-player alternative to World Tree Defender - Seedlings of Yggdrasil — playable solo, no multiplayer required. Shares Strategy and Indie with World Tree Defender - Seedlings of Yggdrasil .

    A roguelike dice-battler where you build a dice pool, chain deadly combos, and roll devastating attacks to drain your opponent. Draft rare dice, collect powerful poker chips, and strategize every roll.

    2026StrategyIndieCasualSingle-playerSimilar games →
  4. 4
    Chicken Defender — Steam game cover

    Chicken Defender

    Single-player alternative to World Tree Defender - Seedlings of Yggdrasil — playable solo, no multiplayer required. Shares Strategy and Indie with World Tree Defender - Seedlings of Yggdrasil .

    Test your skills in this 2.5D, low-poly tower defense game. Your objective is to protect a chicken coop from the attacks of the cunning foxes using different items and power-ups. The possibility of modifying your approach before each wave leads to the existence of multiple winning strategies.

    2021StrategyIndieCasual0.99 USDSingle-playerSimilar games →
  5. 5
    Nightmare Invasion — Steam game cover

    Nightmare Invasion

    Single-player alternative to World Tree Defender - Seedlings of Yggdrasil — playable solo, no multiplayer required. Shares Strategy and Indie with World Tree Defender - Seedlings of Yggdrasil .

    Nightmare has set its sights on this world, and as the will of the world, you will rely on cards, tower defenses, and urban construction to destroy Nightmare's invasion in the dream

    2026StrategyIndieCasualSingle-playerSimilar games →
  6. 6
    城市塔防-City Tower Defence — Steam game cover

    城市塔防-City Tower Defence

    Single-player alternative to World Tree Defender - Seedlings of Yggdrasil — playable solo, no multiplayer required. Shares Strategy and Indie with World Tree Defender - Seedlings of Yggdrasil .

    Roguelite tower defense. Each run generates a different map identity, base position, frontline layout, and pressure lanes. Build and upgrade towers, shape your run with cards and between-wave rewards, manage resources and positioning, survive waves of escalating enemies and boss encounters.

    StrategyIndieSimulationSingle-playerSimilar games →
  7. 7
    Loopstructor 2: Skyspine — Steam game cover

    Loopstructor 2: Skyspine

    Single-player alternative to World Tree Defender - Seedlings of Yggdrasil — playable solo, no multiplayer required. Shares Strategy and Indie with World Tree Defender - Seedlings of Yggdrasil .

    Build intricate rail networks, deploy and upgrade unique Battle Trains, and harness Turret Enchantments to forge mobile fortresses. Fend off endless abominations from the deep earth. Every layout is a battle of wits, every adjustment decides survival.

    2026StrategyIndieCasualSingle-playerSimilar games →
  8. 8
    Invasion, Tales of Tower Defense — Steam game cover

    Invasion, Tales of Tower Defense

    Single-player alternative to World Tree Defender - Seedlings of Yggdrasil — playable solo, no multiplayer required. Shares Strategy and Indie with World Tree Defender - Seedlings of Yggdrasil .

    Embark on an endless tower defense journey in "Invasion." Procedurally generated maps, unlimited levels, and strategic tower upgrades await. Defend against relentless waves and unlock a diverse array of towers. Your choices shape the fate of the realm!

    2024ActionStrategyIndie0.99 USDSingle-playerSimilar games →