Free games like Cobalt Core
Below are 8 free-to-play Steam games similar to Cobalt Core, 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 Cobalt Core page.
Ranked picks
- 1
Die in the Dungeon: Origins
Free-to-play alternative to Cobalt Core — no purchase or trial window. Shares Strategy and Indie with Cobalt Core.
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
KARDS - The WW2 Card Game
Free-to-play alternative to Cobalt Core — no purchase or trial window. Shares Strategy and Indie with Cobalt Core.
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.
- 3
Minion Masters
Free-to-play alternative to Cobalt Core — no purchase or trial window. Shares Strategy and Indie with Cobalt Core.
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
GWENT: The Witcher Card Game
Free-to-play alternative to Cobalt Core — no purchase or trial window. Shares Strategy with Cobalt Core.
Command mighty Witcher-world heroes in epic online PvP card battles!
- 5
Yi Xian: The Cultivation Card Game
Free-to-play alternative to Cobalt Core — no purchase or trial window. Shares Strategy and Indie with Cobalt Core.
Yi Xian: The Cultivation Card Game is an online DBG which contains a PVE mode called Uncharted Realms and a PVP mode. Every game is a deck building from scratch. Players can have stronger decks by changing cards, and then build more powerful routines to defeat all opponents to win.
- 6
Prismata
Free-to-play alternative to Cobalt Core — no purchase or trial window. Shares Strategy and Indie with Cobalt Core.
A perfect-information strategy game inspired by RTS, deckbuilders, and board games. Choose from three distinct technology classes and outwit your foes by snowballing your starting resources into a powerful cybernetic army. ABSOLUTELY NO PAY-TO-WIN.
- 7
Once Upon a Galaxy
Free-to-play alternative to Cobalt Core — no purchase or trial window. Shares Strategy and Indie with Cobalt Core.
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?
- 8
Dominion
Free-to-play alternative to Cobalt Core — no purchase or trial window. Shares Strategy with Cobalt Core.
Expand a small kingdom to a mighty Dominion! Play the Spiel des Jahres winning boardgame beloved by millions around the world. Discover the game that defined a genre, Dominion was first to popularize deck-building and remains a staple of tabletop. This is the officially licensed implementation.