COSMOS is a board game categorized as trick-taking, where players navigate a "Collision (same rank card conflicting)" system to avoid claiming tricks, accompanied by elegant and stunning planetary artwork. Each player takes turns playing one card from their hand. After everyone has played a card, the player who played the "Best Card (Highest Rank card among the cards with the Most Numerous Suits)" takes the trick. the goal of the game is to take the fewest tricks each round. The game ends in the round where someone reaches a specific number of tricks, and the player with the fewest total tricks at that time is declared the winner.