I think we should get 1 extra chest/drop per 10-waves, or at least from 30, 40, & 50, and an escalating chance for double on legend, so- Normal Difficulty, (In brackets = 30, 40, & 50 mentioned above) 10-Waves = 1 20 = 2(or 1) 30 = 3(or 2) 40 = 4(or 3) 50 = 5(or 4) +1 from completion Total = 16(12) Legend, Escalating chance would probably be 10% higher per 10-waves, so 40% at 50 10 = 2 20 = 3(or 2) + 1 at a 10% chance 30 = 4(or 3) + 1 at a 20% chance 40 = 5(or 4) + 1 at a 30% chance 50 = 6(or 5) + 1 at a 40% chance + 1 from completion Total with all bonus' = 25(21) Total without bonus' = 21(17) So Legend would have 9 more than normal at max, and around double the loot we get currently, actually making the effort feel worthwhile. Alternatively, add the extra chests to the invasions at 5-waves, and the bonus to bosses, that'd help with that awful feeling you get when you fail right before or on a boss.