Mastery is 1 of the 6 game modes in Dungeon Defenders 2. It functions similarly to Expeditions however each map has specific sets of challenges to complete. Gear Score is also capped based on the Chaos level of the map you choose.
== Base Challenges ==
'''Victory''': Survive all waves<br />
'''Perfectionist''': Earned all stars in the same attempt<br />
'''Not Even a Scratch:''' No cores fall below 90% health<br />
'''Under Pressure:''' Finish each combat phase in under 180 seconds<br />
'''State of Decay:''' No defenses are repaired<br />
'''Base Builder:''' Build only tower type defenses<br />
'''Master Strategist:''' No defenses are sold or destroyed<br />
'''Protect Your Jewels:''' No Main core(s) fall below 90% health<br />
'''EMP Active:''' Build no aura type defenses<br />
'''Broken Links:''' Build no node type defenses<br />
'''Careful Planning:''' No defenses are destroyed<br />
'''Immortal:''' No hero deaths<br />
'''Equal Opportunity:''' Don't build more than one of a specific defense<br />
'''Budget Cuts:''' No defenses are upgraded<br />
'''Think Fast:''' Complete each build phase in under 30 seconds<br />
'''All Lanes Open:''' Build no blockade type defenses<br />
'''Diversity:''' Complete all phases with 10 or more different defenses<br />
'''You're Grounded:''' Build no tower type defenses<br />
'''Entrapment:''' Build no traps<br />
Mastery is a game mode designed to challenge players by imposing certain restrictions. Each map has a specific set of 5 challenges to complete. Mastery mode also restricts your gear, stats, and Ascension according to the Chaos tier you are playing. Any mods you have on your gear will be set to the Chaos tier of the map you are playing, even if those mods were originally a lower tier.
