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A card game where the construction of a deck is the main focus of gameplay.

Similar to roguelike games but generally with simpler or more forgiving rules & mechanics.

Science-fiction. Commonly including things like aliens, advanced technology, and settings of outer space or distant planets. 

Utilized combat systems where characters or teams take turns making their next move. Turns often have no time limit, allowing for a greater opportunity to think about strategy. The opposite of real-time combat.