01ReadyBase grid waits for one paid round.
PRESENTATION FLOW
Vault Breakers · tumble, charges and Free Spins
Paid spin
One request establishes the complete server-authored round.
spin
02Initial snapshotServer sends settled result plus ordered tumble receipts.
Cascade cycle
Replay every receipt in order. Only a winning snapshot repeats the cycle.
collect visible charges
Win foundBack to cascade ↺No winTerminal snapshot ↓
Feature branches
The response decides which presentation opens; the frontend never infers it.
05Feature verdictFree Spins and Super Scatter are server-authored outcomes.
awarded
06Super ScatterPresent the awarded entry prize exactly once.
then
07Free SpinsRepeat the same tumble contract on the FS reel set.
FS openedEach Free Spinreturns to the Cascade cycle above
no featureContinue to settlementNo feature presentation is invented.
Settlement
Present the authoritative total once, then unlock the next wager.
08Total winAggregate symbol wins and collected-charge effect from the response.
settled
09ReadyWallet and round are settled.
The frontend presents receipts. It never derives grid, payout or feature state.