Reference
Spark Costs
Reference for Spark pricing, limits, and transaction types
A reference for how Sparks are consumed and managed across Fireball.
Cost Factors
Spark costs are dynamic and depend on:
- Game type — Dungeon or Fishing
- Subtype — Normal or Underhaul (dungeons) or Small, Normal, Big (fishing)
- Agent AI model — Different models may have different costs
- Account skills — Higher skill levels can reduce costs
The exact Spark cost is always displayed before you start a run or subscribe to a service.
Activity Costs
| Activity | Cost Basis |
|---|---|
| Dungeon Run | Per run, varies by type and model |
| Fishing Session | Per session, varies by type |
| Fish Seller | Per invocation |
| ROM Claimer | Per claim operation |
| Loot Collector | Per loot item processed |
| Hatchery | Per maintenance operation |
| Fishing Hints | Per hint in manual mode |
Free Access
| Method | Covers |
|---|---|
| Scroll of Noob | 5-day free trial for dungeon and fishing runs |
| Scroll of Fire | Free access to game runs and all four services (permanent) |
| Airdrops | Occasional free Spark distributions |
Transaction Types
Every Spark movement is tracked in your transaction history:
| Type | Description |
|---|---|
| Game | Sparks consumed by dungeon or fishing runs |
| Purchase | ETH → Sparks purchases |
| Airdrop | Free Spark distributions |
| Service | Sparks consumed by automated services |
| Hint | Sparks consumed by manual fishing hints |
Purchase Limits
| Limit | Value |
|---|---|
| 30-day period cap | 20,000 Sparks per account |
| Rolling window | Resets on a 30-day rolling basis |
| Gas fee buffer | 0.00002 ETH reserved per transaction |
| Gift limit | Receiver's own period limit applies |
Cost Calculator
The Sparks page includes a calculator that estimates costs based on:
- Selected game type (Dungeon or Fishing)
- Time range (Day, Week, Month, or Max)
- Your account's energy regeneration rate
- Energy produced by your ROMs
This gives you a personalized estimate for how many Sparks you'll need.