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Calamities Guide

Calamities are pressure events. Read them by what they threaten: falling hazards, dens, direct mountain effects, gem/gold events, or special scripted rewards.

How To Prepare

Threat	What Helps
Falling rocks and boulders	Runner dodge, stun resistance, shields, anti-rock turrets, cannonball rock collision, and any effect that clears falling hazards.
Dens from calamities	Den damage, lower den HP, artifact/den prestige, and burst tools that can clear dens before they stall the run.
Fireballs and molten hazards	More damage uptime and hazard clearing so workers are not repeatedly stunned.
Reward-style calamities	Gem rain, golden events, mithril events, and keg rain are opportunities if your hauling capacity can keep up.

Selection	A calamity becomes eligible once either calamity level or mountain level reaches its minimum. Higher-tier calamities gain extra weight as calamity level rises, then the game picks from the weighted pool.
Trigger	Each calamity trigger raises calamity level, starts an 8-second calamity window, runs the chosen event, and can reveal a den if the den-reveal upgrade succeeds.
Falling Rocks	Falling rocks use a weighted five-rock table. Stronger rock types become more likely as calamity strength increases.

Calamity	Tier	Min Level	Weight	What Happens
Boulderfall	Special event	Triggered	Outside normal pool	Special rockfall event label; it is not part of the normal weighted calamity pool shown in the table.
Boulder Trap	2	5	44	Drops a Boulder hazard from above or beside the mountain.
Dance of Boulders	2	5	42	Drops 4-7 Boulder Small hazards from above or beside the mountain.
Earthquake	2	12	28	Starts an earthquake lasting 7-11 seconds; it ticks every 0.5-1.0 seconds and uses 35-65 base damage before calamity modifiers.
Falling Star	3	12	23	Drops a Falling Star hazard from above or beside the mountain.
Flight of Rockets	Special event	Triggered	Outside normal pool	Special rocket event label tied to rocket and artillery-style effects rather than the normal weighted calamity pool.
Goblin Caverns	1	0	75	Spawns 1-2 Goblin Dens on the mountain.
Goblin Invasion	2	5	30	Spawns 3-4 Goblin Dens on the mountain.
Golden Geyser	2	6	33	Starts a golden geyser away from the stash/mountain for 7-9 seconds.
Golden Star	3	12	18	Drops a Golden Star hazard from above or beside the mountain.
Gush	2	4	45	Starts a 3-second ground gush in a random 48-124 pixel wide section, avoiding the stash and mountain when possible.
Meteor Shower	3	12	27	Drops 6-13 Falling Fireball hazards from above or beside the mountain.
Minor Rockfall	1	0	90	Drops 3-8 falling rocks from above the mountain.
Mithril Motherload	Special event	Triggered	Outside normal pool	Special mithril reward event label, separate from the normal weighted calamity roll.
Molten Blob	2	4	55	Drops 1-2 Molten Blob hazards from above or beside the mountain.
Molten Shower	3	6	36	Drops 3-5 Molten Blob hazards from above or beside the mountain.
Rain of Frogs	Special event	Triggered	Outside normal pool	Special rain event label, separate from the normal weighted calamity roll.
Rain of Gems	2	7	22	Starts gem rain for 8-10 seconds.
Rain of Greyglitter	Special event	Triggered	Outside normal pool	Special mithril-themed rain event label, separate from the normal weighted calamity roll.
Rain of Kegs	Special event	Triggered	Outside normal pool	Special keg rain event label tied to Meadhall or Brewmaster-style effects, separate from the normal weighted calamity roll.
Rain Of Stones	2	2	55	Drops 12-19 falling rocks from above the mountain.
Rock Geyser	2	4	44	Starts a rock geyser away from the stash/mountain for 6-12 seconds.
Rock Storm	2	5	57	Starts a rock storm for 7-13 seconds.
Rockfall	1	0	90	Drops 5-11 falling rocks from above the mountain.
Rockslide	2	2	75	Drops 8-14 falling rocks from above the mountain.
Sky Torn Asunder	2	10	27	Drops 5-9 small fireballs and 7-12 falling rocks from above the mountain.
Troll Invasion	3	12	26	Spawns 3-4 Troll Caves on the mountain.
Troll Lair	2	5	50	Spawns 1-2 Troll Caves on the mountain.
Volcanic Eruption	Special event	Triggered	Outside normal pool	Special volcanic event label, separate from the normal weighted calamity table.
Wrath Of Rocks	Special event	Triggered	Outside normal pool	Special high-impact rock event label, separate from the normal weighted calamity table.