IMHO.

Single-player games like Heirs of the Moon

Below are 8 single-player Steam games similar to Heirs of the Moon, 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 Heirs of the Moon page.

Ranked picks

  1. 1
    Marque & Reprisal — Steam game cover

    Marque & Reprisal

    Single-player alternative to Heirs of the Moon — playable solo, no multiplayer required. Shares Strategy and Adventure with Heirs of the Moon.

    Explore. Trade. Fish. Whale. Colonize. Fight. Pillage. Survive. You are a sea captain in the year 1522, and the whole world is yours to discover in this roguelike sandbox historical sailing simulator.

    2026StrategyIndieAdventureSingle-playerSimilar games →
  2. 2
    Havoc Heirs — Steam game cover

    Havoc Heirs

    Single-player alternative to Heirs of the Moon — playable solo, no multiplayer required. Shares Adventure and RPG with Heirs of the Moon.

    A fantasy turn-based RPG in a massive interconnected world. Monsters are everywhere, and you may end up being one of them.

    2026AdventureRPGSingle-playerSimilar games →
  3. 3
    Rotted - A Brain Rot Simulator — Steam game cover

    Rotted - A Brain Rot Simulator

    Single-player alternative to Heirs of the Moon — playable solo, no multiplayer required. Shares Strategy and Simulation with Heirs of the Moon.

    Rotted is a high-stress survival roguelite. Trapped in a room with a phone, swipe the feed to stack game-breaking powerups while juggling physical chaos, hunger, and anxiety. Break the loop, outsmart the rogue AI, and shut down the network... or rot.

    2026StrategyIndieSimulationSingle-playerSimilar games →
  4. 4
    Tides of Tethys — Steam game cover

    Tides of Tethys

    Single-player alternative to Heirs of the Moon — playable solo, no multiplayer required. Shares Strategy and Simulation with Heirs of the Moon.

    A tactical exploration building game where you explore the uncharted depths of Tethys; scavenging resources and lost technologies, to survive the dangers of the abyss. As the Overseer, lead expeditions of Knights through the dark trenches and the unknown, and help them rebuild their lost Kingdom.

    StrategyIndieSimulationSingle-playerSimilar games →
  5. 5
    Birdy's Island — Steam game cover

    Birdy's Island

    Single-player alternative to Heirs of the Moon — playable solo, no multiplayer required. Shares Adventure and Simulation with Heirs of the Moon.

    Join Birdy, a friendly bird, on a tropical adventure full of surprises! Fly, dive, and glide around the island, discovering new places and meeting cute animal friends. Tap to guide Birdy through the air, release to dive, and find hidden treasures along the way. Fun awaits—let’s explore!

    IndieAdventureSimulationSingle-playerSimilar games →
  6. 6
    Biovoid — Steam game cover

    Biovoid

    Single-player alternative to Heirs of the Moon — playable solo, no multiplayer required. Shares Strategy and Simulation with Heirs of the Moon.

    Biovoid is a creature-building roguelike game where you slay hordes of hostile aliens. Combine a variety of cells and mutations to create game-breaking builds and evolve from a fragile hatchling to a deadly predator.

    2026StrategyIndieSimulation12.74 USDSingle-playerSimilar games →
  7. 7
    Migration — Steam game cover

    Migration

    Single-player alternative to Heirs of the Moon — playable solo, no multiplayer required. Shares Adventure and Simulation with Heirs of the Moon.

    Survive as a crow through lands bound to cycles of warmth and frost. Endure hunger, thirst, and fatigue while paying attention to predators. Find allies among other animals, share resources, and decide when to leave before survival grows harsher.

    AdventureSimulationSingle-playerSimilar games →
  8. 8
    Derby Life: Ranch & Race — Steam game cover

    Derby Life: Ranch & Race

    Single-player alternative to Heirs of the Moon — playable solo, no multiplayer required. Shares Action and Adventure with Heirs of the Moon.

    Derby Life: Ranch & Race is where great racehorses are made, not born. Breed, raise, and train your own on a living open-world ranch, then saddle up and race the World Tour. Roam, fish, explore, compete. Your ranch, your horse, your glory.

    ActionSportsAdventureSingle-playerSimilar games →