Introduced in update 1.4, Coal Lump’s Treasure is a temporary tower-defense activity for Neverness to Everness. Inside an arena at Pukaland, defend a central structure from successive monster attacks; your results earn Prism Drops for purchasing event rewards. The event runs from October 8 through November 11, 2026, leaving ample time to empty the shop.
Quick answer: Go to the Coal Lump NPC in Pukaland, survive enemy waves to protect his HP, and spend the earned Prism Drops in the Sweetbloom Sweets shop. Most players can stop at Wave 20 each run to farm efficiently.
Coal Lump’s Treasure dates and version
| Detail | Info |
|---|---|
| Start | October 8, 2026 |
| End | November 11, 2026 (05:59 UTC+8) |
| Added in | Version 1.4 |
| Type | PvE tower defense |
| Location | Pukaland |
Prism Drops, the event currency, have a daily earning limit that begins at roughly 1,000 and increases as the event progresses. There’s no need to farm everything on the first day: a handful of runs each day should let you buy out the shop at about day five.
How to start the event in Pukaland
How the mode works
The arena holds a central treasure structure (it looks like a giant cake) that you have to keep alive. Monsters spawn from all four edges and rush inward, so you cannot park in one corner. Watch Coal Lump’s HP bar on the left of your screen. If it empties, the run ends on the spot.
A full run spans 40 waves, with an elite boss arriving every fifth wave. Early waves of slimes and puffballs clear fast with basic area damage, but later rounds pile on tankier knights, tin soldiers, and swarms of rolling pig-bomb enemies that blitz the center.
Coins and candies
Defeated enemies leave Coal Lump Coins behind. Between waves, use them at the gacha vending machines in the arena corners to obtain candy buffs. Each candy provides a one-use active effect, and you can have one candy active at a time. Using another immediately replaces the current effect, so save the powerful ones for emergencies.
Boss buffs
Every wave-5 boss drops a buff when it dies. You pick one of three options (with a free reroll), and the choice stacks and lasts the entire match. Prioritize attack scaling and enemy movement-speed reduction so you can delete mobs before they reach the cake. Max HP buffs for Coal Lump are only worth it if you are pushing deep into the harder waves.
Every candy and its effect
| Candy | Effect |
|---|---|
| Sparkle Pops | +30% DMG to all allies for 10s |
| Puka Chocoa | Refills active character’s Ultimate Energy and resets its cooldown |
| Floaty Bubblegum | +30% Movement Speed to all allies for 25s |
| Cloudfluff Cotton Candy | Summons Fluffs that have HP and pull enemy aggro |
| Frostmint Candy | Inflicts Stasis on all enemies for 10s |
| Lava Burst Candy | 2.5% Max HP fixed DMG to all enemies each second for 10s |
| Chewy Toffee | -20% enemy Movement Speed for 20s |
| Brittle Bites | Removes Break equal to 80% of the Break cap from every enemy |
| Juicy Gummies | Restores 25% of all allies’ Max HP |
Tips to survive later waves
- Intercept enemies at the outer edges. Don’t wait for them to crowd the center where they chip the cake’s HP.
- Bring crowd control to regroup scattered mobs. Iroi, Sakiri, and Jiuyuan all pull enemies back into your damage zone.
- Run a healer, since health drops are inconsistent. Juicy Gummies covers emergencies.
- When Wave 20 overwhelms you with anomaly spawns, use movement-speed or enemy-slow candies to reach the corners first.
At Wave 20, you’ll be asked whether to proceed to higher-difficulty waves; the main change is increased enemy health. For daily-currency farming, the fastest option is to save and exit after Wave 20. Continue toward Wave 40 only if you’re pursuing a high score.
Rewards and the Sweetbloom Sweets shop
Prism Drops awarded for a run depend on how many enemies you defeat, the waves you complete, your clear speed, and Coal Lump’s remaining HP. Spend the drops at the Sweetbloom Sweets event shop. Completing milestones grants up to 320 Annulith and 200,000 Fons, along with progression materials.
- Annulith
- Fons
- Floe Cinema Ticket
- Chaotic Dye
- Expansion Core
- Heterogeneous Unit
- Beetle Coin
- Elite Hunter’s Guide
Two cosmetic titles sit outside the shop. The Bestie Supreme and Sweet Benefactor titles are unlocked by hitting high scores on your runs, with score tiers set at 2,500 and 7,200.
You know a run counted when the results screen appears with your final score and Konpeito count, and your event currency progress ticks up toward the daily cap on the event menu. From there, the Sweetbloom Sweets shop is where you cash everything in before the event closes on November 11.
