IMHO.

Single-player games like The Black Siege

Below are 11 single-player Steam games similar to The Black Siege, 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 The Black Siege page.

Ranked picks

  1. 1
    Fire and Movement — Steam game cover

    Fire and Movement

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

    Scout enemy positions, apply pressure from the front, and send another force around the flank. Combine tanks, infantry, reconnaissance units, and artillery support in a turn-based wargame where damage and losses carry throughout the operation.

    2026StrategyIndieEarly AccessSingle-playerSimilar games →
  2. 2
    Color War — Steam game cover

    Color War

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

    An instant battle strategy game where you summon your troops to the battlefield and let them fight on their own. Pay attention to the compatibility of different military units as well as the effects of magic and buildings.

    2026StrategySingle-playerSimilar games →
  3. 3
    Shield Operator — Steam game cover

    Shield Operator

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

    Defend the skies against enemy missiles, drones, and aircraft! Deploy modern air defense systems, calculate trajectories, and destroy aerial targets in real time. Become an impenetrable shield for your territory. Repel any aerial threat with a decisive response!

    ActionStrategySimulationSingle-playerSimilar games →
  4. 4
    Seed World — Steam game cover

    Seed World

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

    Seed World is a game that aims to combine automation, conveyor belts, and level progression. The game simplifies automation 'construction' into a series of progress bars, with each progress producing or consuming resources, and players need to manage resources.

    2025StrategyIndieSimulation2.99 USDSingle-playerSimilar games →
  5. 5
    The Undead War — Steam game cover

    The Undead War

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

    Take the role of an army commander for the habitant of nardia. select the desired type of units and install it on the battlefield, in this roguelike auto battle simulator, use tactics, magic, recruit new fighters, use tech tree to unlock powers and upgrades to defeat the undead.

    2023StrategyIndieSimulation2.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Tower Survivors — Steam game cover

    Tower Survivors

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

    'Tower Survivors' is a dark fantasy survival RTS where you must survive, upgrade and defend humanity against massive unending armies from Anubis Tomb, Jurassic Valley and Vampire Monastery. Set in three different empires hell-bent on your destruction, it’s not if you can survive, but how long.

    ActionStrategyIndieSingle-playerSimilar games →
  7. 7
    Guildrun — Steam game cover

    Guildrun

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

    Turn a simple team into an unstoppable force and crush waves of monsters in this PvE autobattler roguelike. No two runs feel the same as you bend heroes beyond their class roles and discover countless combinations and synergies. Seal the rifts at your own pace and uncover what tore them open.

    ActionStrategyIndieSingle-playerSimilar games →
  8. 8
    Verdun — Steam game cover

    Verdun

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

    Merciless trench warfare immerses you and your squad in intense battles of attack and defense. Verdun is the first multiplayer FPS set in an authentic World War One setting offering a rarely seen battlefield experience.

    2015ActionStrategyIndie11.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Roguenarok — Steam game cover

    Roguenarok

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

    Destroy the enemy base before they can destroy your own. In this single-player MOBA action roguelite bullet-heaven, you play as a viking dinosaur wielding up 4 abilities and weapons at a time. Unlock new warriors and fight along with your soldiers and bring an end on the Alien’s reign.

    2023ActionStrategyIndie4.99 USDSingle-playerSimilar games →
  10. 10
    Penguin Gladiators — Steam game cover

    Penguin Gladiators

    Single-player alternative to The Black Siege — playable solo, no multiplayer required. Shares Action and Indie with The Black Siege.

    Fight for your survival through different arenas and be the last penguin standing. Break eggs for power-ups, unlock characters, and create unique builds to defeat your gladiator rivals.

    2026ActionIndieCasualSingle-playerSimilar games →
  11. 11
    Oil Island Hustle — Steam game cover

    Oil Island Hustle

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

    Your on an island because you owe your best friend 1 million dollars. To pay him back, you extract all the oil and resources in here. Buy some robots to automate your work, repair your port and unlock new trade partners and starting hustling!

    2026StrategyIndieAdventureSingle-playerSimilar games →