IMHO.

Single-player games like Mission: Rift seeker

Below are 9 single-player Steam games similar to Mission: Rift seeker, 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 Mission: Rift seeker page.

Ranked picks

  1. 1
    Urban Entrepreneur — Steam game cover

    Urban Entrepreneur

    Single-player alternative to Mission: Rift seeker — playable solo, no multiplayer required. Shares Strategy and Indie with Mission: Rift seeker.

    Manage inventory, staff, prices and more while creating a monopoly!

    2024StrategyIndieSimulation9.99 USDDeck PlayableSingle-playerSimilar games →
  2. 2
    Casino Resort Tower — Steam game cover

    Casino Resort Tower

    Single-player alternative to Mission: Rift seeker — playable solo, no multiplayer required. Shares Strategy and Simulation with Mission: Rift seeker.

    Build a towering casino resort and watch it come alive. Crowds flow, elevators jam, and tiny decisions create big stories as your tower grows upward, floor by floor. Build it. Break it. Fix it.

    2023StrategySimulationEarly Access19.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    Academia : School Simulator — Steam game cover

    Academia : School Simulator

    Single-player alternative to Mission: Rift seeker — playable solo, no multiplayer required. Shares Strategy and Indie with Mission: Rift seeker.

    Design, build, and manage a high school with terrific teachers and fantastic facilities or simply let your students poop in the bushes? Academia : School Simulator is a management/tycoon game where you get to decide!

    2021StrategyIndieSimulation19.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Project Of Cooling The Earth — Steam game cover

    Project Of Cooling The Earth

    Single-player alternative to Mission: Rift seeker — playable solo, no multiplayer required. Shares Strategy and Indie with Mission: Rift seeker.

    Players must survive in the ruins of the human world and face various survival challenges and dangers. Players need to search for resources in abandoned cities and wilderness, including food, water sources, construction materials, etc., to maintain survival and build safe shelters.

    2024StrategyIndieSimulation4.99 USDSingle-playerSimilar games →
  5. 5
    Ale Abbey - Monastery Brewery Tycoon — Steam game cover

    Ale Abbey - Monastery Brewery Tycoon

    Single-player alternative to Mission: Rift seeker — playable solo, no multiplayer required. Shares Strategy and Indie with Mission: Rift seeker.

    Build and expand your monastery, craft recipes and brew holy ales in this unique brewery tycoon. No pre-made recipes in Ale Abbey, oh no. It's a canvas for true beer alchemists. It's as simple as: brew, sip, repeat. Welcome to Ale Abbey!

    2025StrategyIndieSimulation14.99 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    The Corporate Machine — Steam game cover

    The Corporate Machine

    Single-player alternative to Mission: Rift seeker — playable solo, no multiplayer required. Shares Strategy and Simulation with Mission: Rift seeker.

    Stardock's classic 2001 real-time economic strategy game, available now on Steam. Dive back into the timeless battle for one of the most ruthless environments ever created: international trade.

    2015StrategySimulation9.99 USDSingle-playerSimilar games →
  7. 7
    RimWorld — Steam game cover

    RimWorld

    Single-player alternative to Mission: Rift seeker — playable solo, no multiplayer required. Shares Strategy and Indie with Mission: Rift seeker.

    A sci-fi colony sim driven by an intelligent AI storyteller. Generates stories by simulating psychology, ecology, gunplay, melee combat, climate, biomes, diplomacy, interpersonal relationships, art, medicine, trade, and more.

    2018StrategyIndieSimulation34.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Dwarf Fortress — Steam game cover

    Dwarf Fortress

    Single-player alternative to Mission: Rift seeker — playable solo, no multiplayer required. Shares Strategy and Indie with Mission: Rift seeker.

    Build a fortress and try to help your dwarves survive against a deeply generated world. Keep your dwarves happy, grow their community and beware of digging too deeply. The deepest, most intricate simulation of a world that's ever been created.

    2022StrategyIndieSimulation23.99 USDDeck PlayableSingle-playerSimilar games →
  9. 9
    Half Blood RPG — Steam game cover

    Half Blood RPG

    Single-player alternative to Mission: Rift seeker — playable solo, no multiplayer required. Shares Strategy and Indie with Mission: Rift seeker.

    Join Heero in this adventure packed RPG to uncover the mystery surrounding his love Lilith. This classic game uses adventure, comedy, romance and friendship to unite humans, angels and demons in a race against time to save the world from evil.

    2020StrategyIndieAdventure9.99 USDSingle-playerSimilar games →