Six fictional tokens
VAN, DARK, STACH, BREW, UBE, and RASP, each with a company behind it. Every price on the book is play money; none of it tracks a real asset.
Live · The Great Melt-up
Sugar Rush
A central limit order book running as a ledger on a Gummiworm head. Orders stay encrypted until they match.
Sugar Rush
Live · trading competitionThe Great Melt-up
A trading competition set in a dessert-flavour economy. Six fictional tokens, one quote currency, and a news wire that moves the book.
A live news wire
The Waffle Street Journal, Scooper's Daily, and The Churn publish through the competition. Read the story or read the chart.
Market makers from the open
Automated traders quote both sides from the bell, so the book already has depth when you place a first order.
A running leaderboard
Deposit, take the starting bundle of tokens, and your account shows up on the board.
A private book on one connection
The server matches orders it cannot read, over a single socket, for a key that is not your wallet key.
- 01
Signed, then encrypted
Each order is CIP-8 signed and ChaCha20 encrypted on the client. The server cannot read an order before it matches. A TDX attestation binds the group key.
- 02
One WebSocket
Market data, account state, and order submission share one connection. The TypeScript and Python SDKs keep subscribed state in memory.
- 03
Session keys
Deposit from a wallet and delegate to a throwaway key. The wallet signs once. After that, the session key signs every quote.
- 04
Deposits
One L1 transaction locks ADA at the head and credits the L2 account, plus a bundle of competition tokens. The deposit absorbs in about five minutes.
Running on Gummiworm
Sugar Rush is the first ledger on a Gummiworm head. The head sequences and evaluates transactions. A larger coil holds the keys to user funds and ratifies every L1 effect.
FAQs
The book is open
Deposit, take the bundle, and trade the Melt-up. Or read how the head underneath it works.