Spiral Knights had Steam trading card support added on January 13, 2014. There are 12 cards in the series. Because Spiral Knights is a Free to Play Game, cards are earned by purchasing in-game content (approximately $9 USD per card drop).
Spiral Knights had Steam trading card support added on January 13, 2014. There are 12 cards in the series. Because Spiral Knights is a Free to Play Game, cards are earned by purchasing in-game content (approximately $9 USD per card drop).