Here is the full list of all 100 The last world achievements.
Obtain 1,000 crystal
Damage taken reaches 100
Attack reaches 60
Max HP reaches 300
Mission 1 complete
Beat 5,000 enemies
Power reaches 50
Wisdom reaches 50
Agility reaches 50
Critical Chance reaches 10%
Critical Damage reaches 200%
Damage Bonus reaches 10%
Defense reaches 50
Skill Cooldown decreased by 10%
Obtain 10,000 crystal
Obtain 100,000 crystal
Obtain 1,000,000 crystal
Obtain 10,000,000 crystal
Mission 2 complete
Mission 3 complete
Mission 4 complete
Mission 5 complete
Mission 6 complete
Beat the fourth boss in the mission 6 infitity mode
Beat the sixth boss in the mission 7 infitity mode
Beat the eighth boss in the mission 8 infitity mode
Beat the tenth boss in the mission 9 infitity mode
Damage taken reach 1,000
Damage taken reach 10,000
Damage taken reach 100,000
Power reaches 100
Power reaches 200
Power reaches 300
Wisdom reaches 100
Wisdom reaches 200
Wisdom reaches 300
Agility reaches 100
Agility reaches 200
Agility reaches 300
Critical Chance reaches 50%
Critical Chance reaches 100%
Critical Damage reaches 250%
Critical Damage reaches 300%
Skill Damage Bonus reaches 50%
Skill Damage Bonus reaches 100%
Max HP reaches 500
Max HP reaches 1,000
Max HP reaches 3,000
Max HP reaches 5,000
Defense reaches 100
Defense reaches 200
Skill Cooldown decreased by 20%
Skill Cooldown decreased by 30%
Beat 10,000 enemies
Beat 50,000 enemies
Beat 100,000 enemies
Beat 500,000 enemies
Beat 1,000,000 enemies
Purchase 1 equipment
Purchase 1 epic equipment
Purchase 1 legend equipment
Purchase 10 legend equipments
Purchase 100 legend equipments
Obtain 1 Swordmaster equipment
Obtain 4 Swordmaster equipments
Obtain 1 Swordstrike equipment
Obtain 4 Swordstrike equipments
Obtain 1 Impact equipment
Obtain 4 Impact equipments
Obtain 1 Thunderstorm equipment
Obtain 4 Thunderstorm equipments
Obtain 1 Venomous equipment
Obtain 4 Venomous equipments
Obtain 1 Shadowless equipment
Obtain 4 Shadowless equipments
Obtain 1 Magma equipment
Obtain 4 Magma equipments
Obtain 1 Heavenly equipment
Obtain 4 Heavenly equipments
Obtain 1 Icy equipment
Obtain 4 Icy equipments
Obtain 1 Rebound equipment
Obtain 4 Rebound equipments
Obtain 1 Scatter equipment
Obtain 4 Scatter equipments
Obtain 1 Skyreach Spear equipment
Obtain 4 Skyreach Spear equipments
Obtain 1 Thunder Lance equipment
Obtain 4 Thunder Lance equipments
Obtain 1 Qigong Bomb equipment
Obtain 4 Qigong Bomb equipments
Obtain 1 Hado Fist equipment
Obtain 4 Hado Fist equipments
Obtain 1 Talisman equipment
Obtain 4 Talisman equipments
Obtain 1 Boundary equipment
Obtain 4 Boundary equipments
Obtain Godslayer Sword
Obtain Demon God Sword
ObtainDemon God Ring