The Sims 2: Castaway Cheat Codes

Unlock Vest and Tanktop

At the 'Pause' menu go to 'Fashion and Grooming' and press Square, R2, R2, Triangle, D-pad Down to unlock the vest and tank top so your Sims can wear them.

Gnome Cheat

During LIVE mode press Left Trigger, Right Trigger, Up, X, Right Trigger to spawn the Cheat Gnome on different locations on all the islands. When you have then found a Cheat Gnome enter the following codes to unlock the corresponding effect in the game.

Unlock ALL Craft and Resources:
Press Square, Triangle, Right Trigger, Down, Down, Up.

Unlock ALL Plans:
Press X, Right Trigger, X, Right Trigger, X.

Max Current Food and Resources:
Press Square 4 times, Left Trigger.