Achievements/Trophies are rewards for completing specific challenges within Castle Crashers. Currently, players can earn a total of 200 Gamerscore from completing all the achievements in the game.
All achievements/Trophies are listed below.
| Icon | Name | Gamerscore (Xbox)/Trophy Type (PlayStation) | How to unlock |
|---|---|---|---|
 |
Kay Eye Ess Ess | 15 | Win a kiss from all four princesses in a multiplayer game. |
 |
Traditional | 20 | Complete the game using any character. |
 |
The Traitor | 20 | Defeat any boss by playing as one of his own minions. |
 |
Deer Trainer | 20 | Navigate the Abandoned Mill without hitting any obstacles. |
 |
Conscientious Objector | 20 | Complete through the Barbarian Boss without attacking any foes.. |
 |
Maximum Firepower | 10 | Using a catapult, fling a knight with maximum power (Flowery Field area). |
 |
Animal Handler | 20 | Collect all 26 Pets. |
 |
Arena Master | 15 | Win 40 Arena Ranked Matches. |
 |
Melee Is Best | 15 | Defeat any Boss without using Magic. |
 |
Treasure Hunter | 20 | Find and dig up 10 buried items. |
 |
Medic! | 10 | In a four-player game, resuscitate each of your fallen comrades at least once. |
| Xbox 360 Exclusive | |||
 |
Glork | 15 | Win 20 All You Can Quaff Ranked Matches. |
| PlayStation 3 Exclusive | |||
 |
Social Networker | Bronze | Reach 20 hits in a single Volleyball rally. |
 |
You Are Insane | Gold | Complete Insane mode and become the ultimate Castle Crasher. |
| Castle Crashers Remastered Exclusive | |||
| The Final Countdown | 75 | Survive until 2:30 in a Back Off Barbarian match. | |