PadCastle in the PadMod port has different textures than the PadCastle in 1.2. However, the map layout (Weapons and powerups locations) are exactly the same. 

Wop padcastle

PadCastle's levelshot

ENTE's PadCastle (PadMod)

ENTE's PadCastle (PadMod)

Weapons Edit

PadCastle features one of every weapon. (Including an imperius) 

Powerups Edit

PadCastle features 1 Revival, 1 Visionless, 1 PadPower, 1 Killer ducks, 1 PadShield and 4 Health Stations

Gametypes Edit

PadCastle supports FFA, TDM, 1VS1, LPS and BB gametypes. 

Special Rooms Edit

Imperius Room Edit

To get to the Imperius room, the player must first find the dungeon where the killer ducks are located. Then they have to wait in front of the door next to some Pumper and Balloony ammo. It opens every 3 minutes. If a player is in battle, there's a horn sound playing once the door has open throughout the entire map. The door only stays open for about 10 seconds tho, so the player must be fast getting there. The actual rooms appears to be an outside area of the castle, with the Imperius in a small Shrine.