Slot Math & GDD

PRESENTATION FLOW

Book of Odin v2 · Free Spins and nested feature

  1. 01Base readyBook symbols can trigger Free Spins.
  2. then
    02Base spinReels and ordinary wins resolve.
  3. then
    03Free Spins trigger?Authoritative feature receipt chooses the branch.
  4. triggered04Select special symbolReveal the symbol that expands during the series.
  5. thenresume if spins remainmore FS
    05Free SpinSequence index and remaining spins come from state.
  6. then06Expanding WildSelected symbol expands on eligible reels, then wins present.
  7. then
    07Hold & Win also triggered?The same receipt may close FS and open the nested feature.
  8. yes08Nested Hold & WinSuspend the FS presentation context; run the durable feature.
  9. series settled
    09Free Spins totalUse settled series receipt, not next state.
  10. not triggeredthen
    10Base readyRestore the base board after authoritative outro.

The frontend presents receipts. It never derives grid, payout or feature state.