In each chain, winning a stage in Campaign opens the next one: stage 15 opens stage 22; stage 16 opens stage 17; stage 18 opens stage 19; stage 20 opens stage 21; stage 23 opens stage 24, which opens stage 25, which opens stage 26. The Campaign waves of all 26 stages add up to 404. Every stage is also played as a Heroic Challenge and an Iron Challenge.
After the campaign20 waves, 800 starting gold, 20 lives. Boss: Sarelgaz.
After the campaign20 waves, 600 starting gold, 20 lives. Boss: Gul'Thak.
After the campaign20 waves, 800 starting gold, 20 lives. Boss: Greenmuck.
After the campaign15 waves, 500 starting gold, 20 lives.
After the campaign15 waves, 800 starting gold, 20 lives. Boss: The Kingpin.
After the campaign16 waves, 600 starting gold, 20 lives.
After the campaign16 waves, 1,000 starting gold, 20 lives. Boss: Ulguk-Hai.
After the campaign15 waves, 1,200 starting gold, 20 lives.
After the campaign16 waves, 900 starting gold, 20 lives. Boss: Moloch.
After the campaign15 waves, 1,000 starting gold, 20 lives. Boss: Myconid.
After the campaign15 waves, 750 starting gold, 20 lives.
After the campaign15 waves, 900 starting gold, 20 lives.