In Concordia Solitaria, you compete alone or in a team of two against the tricky opponent Contrarius. The cards you play determine the actions of your adversary. Only skillful planning will lead to victory. In a two-player game, you may cooperatively compete against Contrarius or challenge him individually.

Concordia Solitaria can be played on any of the maps and with any other expansion for Concordia.

Not a stand-alone game! Requires either the base game Concordia or Concordia Venus to play.