IMHO.

Single-player games like Abyssfall: The Black Citadel

Below are 8 single-player Steam games similar to Abyssfall: The Black Citadel, 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 Abyssfall: The Black Citadel page.

Ranked picks

  1. 1
    TowOrbs — Steam game cover

    TowOrbs

    Single-player alternative to Abyssfall: The Black Citadel — playable solo, no multiplayer required. Shares Action and Strategy with Abyssfall: The Black Citadel.

    TowOrbs is an incremental tower defense game where where you face down hordes of wolves. Master unique tower paths, unlock powerful permanent upgrades and slice through your foes with spinning orbs of destruction!

    ActionStrategySingle-playerSimilar games →
  2. 2
    Trials of Yarbil — Steam game cover

    Trials of Yarbil

    Single-player alternative to Abyssfall: The Black Citadel — playable solo, no multiplayer required. Shares Action and Strategy with Abyssfall: The Black Citadel.

    In this top-down game you must think creatively to speed through waves of enemies, while staying alive. You are a samurai and to restore peace to the lands of Yarbil you must defeat the Trials of Yarbil.

    2025ActionStrategy0.99 USDSingle-playerSimilar games →
  3. 3
    Tide of the Depths — Steam game cover

    Tide of the Depths

    Single-player alternative to Abyssfall: The Black Citadel — playable solo, no multiplayer required. Shares Strategy and Indie with Abyssfall: The Black Citadel.

    Build a team of mighty sea creatures in a lane-based tower defense where the battlefield reshapes your strategy. Harness environmental powers, trigger elemental chain reactions, and adapt your defenders to stop the corruption.

    2027StrategyIndieSingle-playerSimilar games →
  4. 4
    Journey TD — Steam game cover

    Journey TD

    Single-player alternative to Abyssfall: The Black Citadel — playable solo, no multiplayer required. Shares Strategy and Indie with Abyssfall: The Black Citadel.

    Classic tower defense meets roguelite: draft elements, combine from 167 towers, and forge your perfect build with items, runes, and a massive skill tree. Control the paths your enemies take, survive procedurally generated maps and grow stronger with every run.

    2026StrategyIndieSingle-playerSimilar games →
  5. 5
    Temple of Lily — Steam game cover

    Temple of Lily

    Single-player alternative to Abyssfall: The Black Citadel — playable solo, no multiplayer required. Shares Strategy with Abyssfall: The Black Citadel.

    In the ancient Temple of Lily a powerful Necromancer has risen from the shadows, seeking to destroy the sacred land. Defend the temple from the evil forces of the Necromancer. Build towers infused with the pure energy of Lily to fend off the relentless waves of undead creatures.

    2024Strategy4.99 USDSingle-playerSimilar games →
  6. 6
    Defense of Wancotte — Steam game cover

    Defense of Wancotte

    Single-player alternative to Abyssfall: The Black Citadel — playable solo, no multiplayer required. Shares Action and Strategy with Abyssfall: The Black Citadel.

    Build your own towers from modular units, adapt mid battle, and master custom defenses in this Build-a-Tower Defense.

    2026ActionStrategyIndie7.49 USDSingle-playerSimilar games →
  7. 7
    Intra — Steam game cover

    Intra

    Single-player alternative to Abyssfall: The Black Citadel — playable solo, no multiplayer required. Shares Strategy and Indie with Abyssfall: The Black Citadel.

    IntraTD is a top-down tower defense strategy game. Fight against clever enemies by crafting unique strategies with your skills and towers in Intra's story of rescuing the Gravgasians. Manage towers and defend the main tower with your little hero. Explore maps designed with stylized realism.

    2024StrategyIndie1.99 USDSingle-playerSimilar games →
  8. 8
    Heroic Assault — Steam game cover

    Heroic Assault

    Single-player alternative to Abyssfall: The Black Citadel — playable solo, no multiplayer required. Shares Strategy with Abyssfall: The Black Citadel.

    Heroic Assault is a reverse tower defense game where you prepare your army to go through the infested lands of defenses. Choose your units wisely depending on the layout of the defenses and equip them with unique abilities.

    2024Strategy4.99 USDSingle-playerSimilar games →