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Rex’s Black Market
Gems are spendable XP. Rex trades them for things the other person has to actually do - not badges, not skins.
- Every item is a real-world promise that lands in their to-deliver list.
- Nothing clears until somebody actually delivers it.
- Rex never sells app features, only favours.
The honest bit
Rex is the only character in the app who breaks the fourth wall, and he is deliberately a bit shifty. Nothing he sells costs real money.
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