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
    King Cupid — Steam game cover

    King Cupid

    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 .

    Heaven fell. A Cupid in the Fallen City, bow that fires orbs. Bubble-shooter aiming on a two-zone falling board, built on five-color mana: every shot a choice — crystals for mana, wraiths for damage, summons to stop the hit. Orbs, spells, and artifacts interlock into one five-color mana build.

    StrategyIndieCasualSingle-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
    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 dice roguelike where every die you draft is yours forever — if you get it out alive. Chain combos, stack poker chips that break the rules, and decide at every shop: extract and keep your loot, or push one more round and risk all of it.

    2026StrategyIndieCasualSingle-playerSimilar games →
  6. 6
    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 →
  7. 7
    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 .

    Help defend Shanghai from an invasion of snowmen! Build and upgrade towers across a battlefield that changes every run, shape your strategy with powerful cards and between-wave rewards, and survive escalating waves and boss encounters in this roguelite tower defense.

    2026ActionStrategyIndieSingle-playerSimilar games →
  8. 8
    The Last Mission — Steam game cover

    The Last Mission

    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 .

    The Last Mission is an auto-battler and space battle simulation game where you command a fleet of spacecraft in vast, strategic battles. Equip, configure and upgrade your ships to be ready to battle the enemy.

    ActionStrategyIndieSingle-playerSimilar games →