Free games like Slay the Spire 2
Below are 8 free-to-play Steam games similar to Slay the Spire 2, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Slay the Spire 2 page.
Ranked picks
- 1

Die in the Dungeon: Origins
Free-to-play alternative to Slay the Spire 2 — no purchase or trial window. Shares Strategy and Indie with Slay the Spire 2.
Fight your way through a mysterious dungeon in this deck-building, turn-based roguelike game where you don't use cards, but DICE! Deal with enemies by combining dice on your board, boost their effects with magical relics, and discover the story behind Die in the Dungeon!
- 2

Morimens
Free-to-play alternative to Slay the Spire 2 — no purchase or trial window. Shares Strategy with Slay the Spire 2.
Morimens is a roguelite card-building game inspired by the Cthulhu mythos, where you craft a versatile and intricate deck tailored to your playstyle. The choice is yours to embark on a climb up treacherous towers or engage in tactical battles. Explore misty maps and uncover the truth of the world.
- 3

Minion Masters
Free-to-play alternative to Slay the Spire 2 — no purchase or trial window. Shares Strategy and Indie with Slay the Spire 2.
An addictive fast-paced hybrid of Card games & Tower-Defense. Play 1v1 - or bring a friend for 2v2 - and engage in epic online multiplayer battles full of innovative strategy and awesome plays! Collect 200+ cards with unique mechanics, all free!
- 4

KARDS - The WW2 Card Game
Free-to-play alternative to Slay the Spire 2 — no purchase or trial window. Shares Strategy and Indie with Slay the Spire 2.
KARDS, The World War II Card Game, combines traditional CCG gameplay with innovative mechanics inspired by classic strategy games and real battlefield tactics. Take command and challenge other players in grand-scale warfare on the ground, air, or seas.
- 5

Once Upon a Galaxy
Free-to-play alternative to Slay the Spire 2 — no purchase or trial window. Shares Strategy and Indie with Slay the Spire 2.
ONCE UPON A GALAXY is an easy to learn Card Battler with incredible strategic depth and near infinite fun! Which of your favorite characters from myth and fairy tale will you choose?
- 6

GWENT: The Witcher Card Game
Free-to-play alternative to Slay the Spire 2 — no purchase or trial window. Shares Strategy with Slay the Spire 2.
Command mighty Witcher-world heroes in epic online PvP card battles!
- 7

Chess Evolved Online
Free-to-play alternative to Slay the Spire 2 — no purchase or trial window. Shares Strategy and Early Access with Slay the Spire 2.
secretly the most overpowered game in existence
- 8

Mythgard
Free-to-play alternative to Slay the Spire 2 — no purchase or trial window. Shares Strategy and Indie with Slay the Spire 2.
Welcome to Mythgard, a fantasy cyberpunk CCG of heroes, gods, and mythical beasts. Master the unique lane and mana systems in your rise to the top or enjoy team play with a friend. New players can use the code WelcomeChallenger to get 20 free packs and more to start their journey.