Free games like Mineral Defense
Below are 8 free-to-play Steam games similar to Mineral Defense, 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 Mineral Defense page.
Ranked picks
- 1

KARDS - The WW2 Card Game
Free-to-play alternative to Mineral Defense — no purchase or trial window. Shares Strategy and Indie with Mineral Defense.
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.
- 2

Minion Masters
Free-to-play alternative to Mineral Defense — no purchase or trial window. Shares Strategy and Indie with Mineral Defense.
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!
- 3

Prismata
Free-to-play alternative to Mineral Defense — no purchase or trial window. Shares Strategy and Indie with Mineral Defense.
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.
- 4

Crystal Clash
Free-to-play alternative to Mineral Defense — no purchase or trial window. Shares Strategy and Casual with Mineral Defense.
Crystal Clash is a mix of Lane Battles and Deckbuilding - with action-packed tug-of-war strategy, just like your favorite RTS mods from back in the day! :) Play 2v2 or co-op with a friend, or pair up with new allies and enemies! Collect cards, build your decks and have fun crushing your enemies!
- 5

Die in the Dungeon: Origins
Free-to-play alternative to Mineral Defense — no purchase or trial window. Shares Strategy and Indie with Mineral Defense.
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!
- 6

Mythgard
Free-to-play alternative to Mineral Defense — no purchase or trial window. Shares Strategy and Indie with Mineral Defense.
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.
- 7

Dota Underlords
Free-to-play alternative to Mineral Defense — no purchase or trial window. Shares Strategy and Casual with Mineral Defense.
Hire a crew and destroy your rivals in this new strategy battler set in the world of Dota. Introducing Season One: Explore White Spire and earn rewards on the Battle Pass. Pick from several different game modes, play on your own or with friends, and take advantage of crossplay on PC and mobile.
- 8

Dominion
Free-to-play alternative to Mineral Defense — no purchase or trial window. Shares Strategy with Mineral Defense.
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.