Weather events in Be The Final Boss: Gold Rush, Shard Storm, and Cursed Moon — durations, cooldowns, and effects.
Last updated: 2026-09-19
Be The Final Boss rotates three timed weather events — Gold Rush, Shard Storm, and Cursed Moon. Each runs for 5 minutes, then enters a 10-minute cooldown before the next event starts. The current weather and countdown appear at the bottom-right of your HUD. Plan farming around the event that matches your goal: Coins, Fusion Shards, or mutation rolls.
Events cycle automatically — you cannot pick which one starts next. When Gold Rush ends, wait through the cooldown and watch the HUD timer for Shard Storm or Cursed Moon. Because each window is only 5 minutes, keep a stable AFK layout ready so you do not waste time repositioning units when an event begins.
Kill coins are multiplied for the event window; the ground is visibly covered in coin drops.
Colored fusion shards drop across the map; best window for farming shards to fuse.
The map turns purple and enemies become mutated; elite variants (e.g. Elite Archer) appear.
Kill coins drop at ×1.75 for 5 minutes and the ground fills with coin piles. Run Auto Battle with a front spawn-kill layout during Gold Rush to stack Coins faster. Pair with Throne Power and Coin Income skill tree nodes for maximum hourly income.
Related guides →Fusion shard drop chance rises ×1.3 and each kill gets an extra drop attempt. This is the best window to fuse units that need colored Fusion Shards. Keep farming waves — do not stop to reposition unless your line is breaking.
Related guides →Total mutation chance doubles for 5 minutes and elite enemy variants spawn. Save Souls and batch Summon Altar rolls during Cursed Moon instead of rolling randomly outside the window. The map turns purple so you can spot it instantly.
Related guides →3 videos
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All Things How (2026-07-18) — duration, x1.75 coins, 10-minute cooldown, HUD timer
All Things How (2026-07-18) — x1.3 shard drops plus one extra drop attempt
All Things How (2026-07-18) — mutation chance x2
Gold Rush lasts 5 minutes, then there is a 10-minute cooldown before the next event. The exact rotation order cycles through all three events — check the HUD timer at the bottom-right for the current weather and countdown.
Cursed Moon doubles total mutation chance during its 5-minute window. Community sources report the Double Mutation Chance pass also doubles odds — whether they stack multiplicatively has not been officially confirmed. Test during Cursed Moon and record your results.
Shard Storm — fusion shard drop chance rises ×1.3 and each kill gets one extra drop attempt for 5 minutes. Farm waves normally during the window; no special layout is required beyond a stable clear speed.
Yes. Gold Rush is the best AFK coin boost — ×1.75 kill coins for 5 minutes. Cursed Moon is the best AFK summon window — double mutation odds while Auto Roll runs. Set up your layout before the event starts so the full 5 minutes count.
Current weather and the next-event countdown show at the bottom-right of the HUD. When the timer hits zero, the active event ends and the cooldown begins.
