Monopoly GO has over 350,000 active players trading stickers to complete their collections. The problem? Most of that trading happens through scattered Discord servers and Facebook groups — no verification, no trade history, no way to know if the person on the other end actually has what they claim.
I wanted to fix that, so I built GoDices, a dedicated trading marketplace for Monopoly GO players.
The core problem
Sticker trading in mobile games is inherently a trust problem. Two strangers agree to trade digital items with no built-in enforcement mechanism from the game itself. The existing solutions (Discord channels, Facebook groups) weren't built for this — they're general-purpose chat tools being stretched to do something they were never designed for.
What I focused on
1. Trust between strangers
Since there's no way to verify a trade actually happened outside the game, I had to think about reputation systems, trade history, and ways to reduce the "ghosting" problem where one side just disappears mid-trade.
2. Keeping it simple
Power traders will use anything. Casual players won't. The bigger challenge was designing something simple enough that someone who just wants to trade a couple of stickers doesn't bounce off a complicated interface.
3. Avoiding the same mess I was trying to solve
A trading marketplace can easily become spam-filled itself if there's no moderation. I had to build in guardrails from day one instead of bolting them on later.
Where it's at now
GoDices is live at godices.com. It's still early and actively evolving based on feedback from the community.
If you've built anything in the trust/marketplace space — trading platforms, P2P exchanges, anything where two strangers need to transact without a middleman — I'd love to hear how you approached fraud prevention and trust signals. That's been the hardest part of this by far.
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