Quick answer
What is known now
Three public code strings and their reported rewards are listed; exact box contents and a full keycap catalog remain unknown.
Build A Keyboard Items & Rewards
Public code rewards, the Dumpling Box report, and keycap catalog limits.
Current facts
Systems and limits
Code rewards
Current public reports cover a money boost, a Dumpling Box, and XP.
Held details
No complete box contents, drop rates, or named keycap catalog is published as fact.
Player routes