Petit Planet currently has one active code available ahead of its December 2026 release. The code, PTPL1204, rewards players with ten Curio Sea Whistles.
To redeem the code, open Petit Planet on PC and enter the settings menu. Select the Account section, choose Redeem Code, then paste the code into the provided field. Once claimed, the free items can be collected from the PuffPost Box.
More codes may arrive alongside game updates or future livestreams. The guide is expected to be updated as additional rewards become available.
Sources: PCGamesN.