Long ago the three orders cast the Hollow Regent beyond the Rift. Now the Rift is open, and the last muster holds the keep.

Match gems on the board below to send reinforcements into the battle raging above. Every match, cascade and rune calls more defenders to the wall.

• Match to muster

  Lines of Steel, Arcane and Wilds gems call knights, mages and rangers to the field.

• Hold the keep

  Defenders fight on their own. Your job is to keep them coming before the walls fall.

• Three acts

  Twenty-four battles, storming sieges and boss fights on the road to the Regent.