Here is the full list of all 51 Idle Dungeons achievements.
Claim 14 Daily Rewards
Kill 1,000 Bosses
Purchase 100,000 Spells
Reach XP Level 500
Pass Through 2,500 Dungeons
Reach XP Level 250
Pass Through 1,000 Dungeons
Click 100,000 Times
Pass Through 500 Dungeons
Complete the tutorial
Purchase 10,000 Spells
Kill 100 Bosses
Pass Through 250 Dungeons
Prestige 100 Times
Prestige 50 Times
Prestige 25 Times
Prestige 10 Times
Prestige 5 Times
Click 50,000 Times
Prestige Once
Pass Through 100 Dungeons
Create your adventurer!
Click 25,000 Times
Claim 7 Daily Rewards
Purchase 1,000 Spells
Click 10,000 Times
Pass Through 50 Dungeons
Reach XP Level 100
Purchase 100 Spells
Purchase 25 Spells
Reach XP Level 50
Pass through 10 Dungeons
Reach XP Level 25
Kill 1 Boss
Click 1,000 times
Reach XP Level 10
Claim 1 Daily Reward
Reach XP Level 5
Click 100 Times
Make your first click!
Click 1,000,000 Times
Kill 10,000 Bosses
Kill 50,000 Bosses
Kill 100,000 Bosses
Pass Through 10,000 Dungeons
Claim 30 Daily Rewards
Obtain 10 Items
Obtain 25 Items
Obtain 100 Items
Obtain 250 Items
Obtain 500 Items