IMHO.

Single-player games like Fortifend

Below are 8 single-player Steam games similar to Fortifend, 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 Fortifend page.

Ranked picks

  1. 1
    The Merchant's Eden — Steam game cover

    The Merchant's Eden

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

    Build a medieval town around a thriving market. Defend your citizens and traveling merchants against raiding bandits. A minimalist game blending cozy city-building and intense tower-defense as you grow and protect your town.

    2026StrategyIndieCasual8.99 USDSingle-playerSimilar games →
  2. 2
    Crownwarden — Steam game cover

    Crownwarden

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

    Build by day, defend by night! In this narrative city builder, take direct control of your ruler to protect the realm. Explore diverse lands, command armies against monstrous hordes and uncover the secrets of the Abyss.

    ActionStrategySingle-playerSimilar games →
  3. 3
    Falling into Meteor Island — Steam game cover

    Falling into Meteor Island

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

    You’ll become a fallen star, crashing down onto an island covered in stars. This is a base-building + tower defense game. In a unique 2.5D art style, explore the island, build up your camp, fight the island’s evil forces, and lead the other stars back to the universe.

    StrategyIndieAdventureSingle-playerSimilar games →
  4. 4
    Mandate Order — Steam game cover

    Mandate Order

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

    Mandate Order is a Warring States war city-builder set in ancient China. Build a stronghold, manage industries and logistics, recruit scholars from the Hundred Schools of Thought, raise armies, and command real-time tactical battles with thousands of soldiers.

    2026StrategyIndieSimulation16.99 USDSingle-playerSimilar games →
  5. 5
    Raid Haven — Steam game cover

    Raid Haven

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

    A strategy, wave-based survival game focused on building fortified bases and defending against ever-more-powerful raids. Gear up your pawns with powerful weapons and armour, adapt your defences, and survive wave after wave of increasingly dangerous enemies.

    2027ActionStrategyIndieSingle-playerSimilar games →
  6. 6
    Possessed Kingdom — Steam game cover

    Possessed Kingdom

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

    Defend your kingdom or rush the enemy in this Deckbuilding RTS. Build your base, scale your economy, and draw custom paths for your troops to break enemy defenses. Win battles, steal the king's cards, and build the ultimate deck.

    2026StrategySingle-playerSimilar games →
  7. 7
    Dice Factory — Steam game cover

    Dice Factory

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

    Dice Factory is a Dice-Powered City Builder where every throw shapes your kingdom. Every die can become a building, resource or unit. Grow intricate production chains, recruit powerful armies, and defend your Castle against waves of enemies and epic bosses!

    2026StrategyIndieSingle-playerSimilar games →
  8. 8
    Fab.exe — Steam game cover

    Fab.exe

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

    Turn an aging cleanroom into a thriving semiconductor fab. Follow every FOUP, break bottlenecks, protect yield and delivery, outthink rival factories, and grow from N28 to A10 across 32 handcrafted story missions.

    StrategyIndieSimulationSingle-playerSimilar games →