Here is the full list of all 89 Clicker Guild achievements.
50 Hero Upgrades
Level Up Heroes 100 times
Get 2 Critical Clicks in one second
25 Hero Upgrades
Find 1 Relic
Hoard 500 K gold
Hoard 500 B gold
Hoard 500 Q gold
Hoard 50'000 O gold
Receive 1000 K gold
Receive 1000 M gold
Receive 1000 T gold
Receive 100 Q gold
Receive 100 S gold
Receive 100 N gold
Receive 100 U gold
Receive 100 ! gold
Receive 100 # gold
Receive 100 % gold
Receive 100 & gold
Receive 1000e68 gold
Level up Heroes 500 times
Level Up Heroes 2000 times
Level Up Heroes 5000 times
Level Up Heroes 25000
Level Up Heroes 50000 times
100 Hero Upgrades
200 Hero Upgrades
Reach 1000 K DPS
Reach 100 B DPS
Reach 1000 T DPS
Reach 1000 Q DPS
Reach 1000 S DPS
Reach 1000 O DPS
Reach 10000 d DPS
Reach 10000 D DPS
Reach 10000 @ DPS
Reach 10000 $ DPS
Click 12 times in one second
Click 14 times in one second
Click 25 times in one second
Click 35 times in one second
Get 4 Critical Clicks in one second
1000 Clicks
10000 Clicks
50000 Clicks
100000 Clicks
250000 Clicks
Beat Zone 1
Beat Zone 25
Beat Zone 50
Beat Zone 100
Beat Zone 120
Beat Zone 140
Beat Zone 160
Beat Zone 1200
Beat Zone 1400
Beat Zone 1600
Beat Zone 1800
Beat Zone 2000
Beat Zone 2200
Beat Zone 2400
Beat Zone 2600
Beat Zone 2800
Beat Zone 3000
Beat Zone 3200
Ascend 1 Time
Ascend 3 Times
Ascend 5 Times
Ascend 10 Times
Ascend 25 Times
Ascend 50 Times
Ascend 100 Times
Ascend 250 Times
Kill 100 Monsters
Kill 1000 Monsters
Kill 10000 Monsters
Kill 100000 Monsters
Kill 1000000 Monsters
Kill 1500000 Monsters
Kill 10 Bosses
Kill 100 Bosses
Kill 1000 Bosses
Kill 10000 Bosses
Kill 100000 Bosses
Find 10 Relics
Find 25 Relics
Find 50 Relics
Find 1000 Relics