No. But to activate DLC with RAP files, you’ll need to run ReactPSN once (offline is fine after that).
Hack, slash, and smash your way to victory—save your princess, defend your kingdom, and crash some castles! Castle Crashers Pkg Ps3
The PS3 version of Castle Crashers is unique regarding DLC. Unlike the Xbox 360 version, which had paid DLC packs like the King Pack and Necromantic Pack, the PS3 version integrates much of this content directly into the base game. Characters and weapons that were paid DLC on Xbox 360 can be unlocked on PS3 by spending in-game currency (gold) earned by completing levels or by beating specific bosses on harder difficulties. For example, the King can be unlocked by defeating the giant bat Pipistrello boss on Insane difficulty. The PS3 version of Castle Crashers is unique regarding DLC
What is your PS3 running (e.g., official, CFW, or PS3HEN)? For example, the King can be unlocked by
The PS3 version received rebalanced difficulty tweaks for its notorious "Insane Mode," making progression slightly smoother for dedicated teams.