Revision as of 20:58, 17 February 2020 by Kennybot(Message Wall | contribs)(→top: Changed from US to worlwide accepted system, replaced: June 19, → 19 June)
Interplanetary had Steam trading card support added on 19 June 2014. There are 8 cards in the series, and you'll receive 4 cards at random for purchasing and playing the game.