IMHO.

Single-player games like oGANTTo

Below are 11 single-player Steam games similar to oGANTTo, 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 oGANTTo page.

Ranked picks

  1. 1
    Calypso — Steam game cover

    Calypso

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

    Calypso is the roguelike dice-builder! Roll dice to score big and earn powerful game-changing upgrades. Buy cards to enhance your score, and chips to upgrade your dice. Rinse and repeat to create the ultimate dice scoring Rube Goldberg machine!

    StrategySingle-playerSimilar games →
  2. 2
    这张不算 This One Doesn't Count — Steam game cover

    这张不算 This One Doesn't Count

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

    "This One Doesn't Count"—You lived to 40, buying lottery tickets every single day, never winning once. On your deathbed, God reveals: "Everyone who won was cheating." Reborn for one more try, do whatever it takes to pay your daughter's tuition before exam day. Scratch-card × Roguelite.

    2026StrategyIndieAdventure4.49 USDSingle-playerSimilar games →
  3. 3
    Diecast — Steam game cover

    Diecast

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

    Welcome to the dice roguelite. Stuff your bag with wild dice and pins, chain ridiculous scoring combos, and build a point engine to conquer ever-escalating targets. This ain't your Grandma's dice game!

    2026StrategyIndieCasualSingle-playerSimilar games →
  4. 4
    Save Humanity.exe — Steam game cover

    Save Humanity.exe

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

    A roguelike deckbuilder based around designing a microchip from a pile of junk circuits to out compute incoming viruses trying to crash your system. Combo hardware with software programs to chain multipliers that overflow your FLOP meter before the glitches overwhelm you.

    2027StrategyCasualSingle-playerSimilar games →
  5. 5
    Board Poker — Steam game cover

    Board Poker

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

    A roguelike deckbuilder where you build a board, not just a hand. Drop cards onto the grid and score poker hands across every row, column, and diagonal at once. Stack rule-breaking augments, chain explosive combos, and rake in the gold.

    StrategyIndieSimulationFreeSingle-playerSimilar games →
  6. 6
    Forge the Fates — Steam game cover

    Forge the Fates

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

    Take deckbuilding to the next level. Transform your hand of cards into a tactical grid of runes. Plan, shift, and strike to unleash powerful combos and chain match-3 bonuses. Choose your hero, master their deck, and fight through deadly dungeons to face a mysterious dark overlord.

    StrategyIndieSingle-playerSimilar games →
  7. 7
    SlotsNStocks — Steam game cover

    SlotsNStocks

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

    Rig the market in this deckbuilding slot machine roguelike. Draft hundreds of bearish and bullish symbols into your trading machine, collect powerful relics, and manipulate the odds to hit grueling weekly margin calls and avoid going bust.

    StrategyIndieSimulationSingle-playerSimilar games →
  8. 8
    Roll & Reign — Steam game cover

    Roll & Reign

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

    Roll & Reign is a turn-based roguelike deckbuilder. Build a city from scratch while paying tribute to the emperor. Manage your dice rolls, upgrade or modify them, and choose the most suitable buildings for your strategy.

    2026StrategyIndieSimulation4.99 USDSingle-playerSimilar games →
  9. 9
    a land Goo's crazy — Steam game cover

    a land Goo's crazy

    Single-player alternative to oGANTTo — playable solo, no multiplayer required.

    A 2D action roguelike where you have to slash, dash, dodge, manage your stamina, and collect loot to beat 12 unique levels. The boss fights are difficult. And it’s your duty to regain the memory of the Goo’s and rid the land of the corrupt king.

    2023ActionIndieAdventure2.99 USDSingle-playerSimilar games →
  10. 10
    Streets of Handbags — Steam game cover

    Streets of Handbags

    Single-player alternative to oGANTTo — playable solo, no multiplayer required. Shares Simulation with oGANTTo.

    A shopping-themed roguelite where you cook with Grandma!

    2025ActionIndieSimulation3.99 USDSingle-playerSimilar games →
  11. 11
    OmniSeed — Steam game cover

    OmniSeed

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

    Play as a kind-hearted god in a tiny world. Grow thriving forests, inspire mortals to stand strong, and unleash nature's fury to shield them from evil. One small miracle at a time.

    2026StrategyIndieCasual2.12 USDSingle-playerSimilar games →