IMHO.

Single-player games like Crystal Calamity

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

Ranked picks

  1. 1
    Cobalt Core — Steam game cover

    Cobalt Core

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

    A sci-fi roguelike deckbuilder with a deep new single-axis spin on tactics games! Dodge missiles, line up your cannons, and blast 'em out of the sky... Then get to the bottom of these time loops, before it's too late!

    2023StrategyIndie7.99 USDDeck VerifiedSingle-playerSimilar games →
  2. 2
    Monster Train — Steam game cover

    Monster Train

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

    Monster Train is a strategic roguelike deck building game with a twist. Set on a train to hell, you’ll use tactical decision making to defend multiple vertical battlegrounds. With real time competitive multiplayer and endless replayability, Monster Train is always on time.

    2020Strategy4.99 USDDeck PlayableSingle-playerSimilar games →
  3. 3
    StarVaders — Steam game cover

    StarVaders

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

    Pilot a powerful mech to fight off the alien invasion in this ULTIMATE fusion of deckbuilding and grid-based tactics. Discover game-breaking combos, rewind time to alter your fate, and protect the future of humanity in this endlessly replayable roguelike.

    2025StrategyIndieAdventure17.49 USDDeck VerifiedSingle-playerSimilar games →
  4. 4
    Banners of Ruin — Steam game cover

    Banners of Ruin

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

    Assemble your party. Answer the call. Win the war. Build a deck and fight a series of turn-based combats with up to 6 party characters through the city of Dawn's Point. Each character can unlock a set of unique cards and abilities that can augment your deck in powerful, exciting ways.

    2021StrategyRPG19.99 USDDeck PlayableSingle-playerSimilar games →
  5. 5
    Touhou Rinrinki ~ Crafts of the Lucky Beast — Steam game cover

    Touhou Rinrinki ~ Crafts of the Lucky Beast

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

    Touhou Rinrinki ~ Crafts of the Luck Beast is a Touhou Doujin Card-Strategy Game. Using cards across different seasons, join forces with duelists of unique abilities, face various opponents from all over Gensoukyo, and uncover the truth behind the Card Duel Incident!

    2026StrategyIndieEarly Access8.49 USDDeck PlayableSingle-playerSimilar games →
  6. 6
    Touhou: Lost Branch of Legend — Steam game cover

    Touhou: Lost Branch of Legend

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

    Welcome to Eientei, combine multiple colors of mana to build your ideal deck, duel with gensokyo girls, and chase back the mysterious moon treasure. Also, enjoy the unpredictable Roguelike with fantasy Danmaku!

    2022StrategyIndieAdventure23.99 USDDeck PlayableSingle-playerSimilar games →
  7. 7
    Dream of Corpse Lady — Steam game cover

    Dream of Corpse Lady

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

    Cards, battle! Someone woke up the sleeping Corpse Lady... Perhaps, the world needs to pay a price for the awakening... In this game, you will play the role of the awakened Corpse Lady, try various strange construction combinations, discover powerful opponents, and then knock them all down!

    2026StrategyIndieAdventure9.99 USDDeck PlayableSingle-playerSimilar games →
  8. 8
    Trizon — Steam game cover

    Trizon

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

    Trizon is a roguelike deck-building game. Fuse any two cards together to play crazy combos. The game combines auto-battler mechanics, where creatures attack on their own, with instant-effect spell cards. Battles are fast-paced and dynamic, set against a simple and restrained art style.

    2025StrategyIndie7.19 USDDeck PlayableSingle-playerSimilar games →