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Collapse

Section

OSE HMS · p.5

When the earthquakes stop (either at the end of day 6 or if the God Fish is appeased), the God Fish returns to the Earth’s Heart Sea and the whole dungeon begins folding back into itself. The referee adds the collapse check step to the pointcrawl, encouraging a hasty retreat. Rolling: The referee rolls on the collapse table when the party first enters a region, then every 2 turns they spend in the region. They start by rolling . Escalation: Every watch (12 turns) they add one more to the collapse check (so becomes , then , etc.). Some results add more s to the check. Local collapses: Most results of 7+ include at least one local collapse. Each region’s description lists three local collapses that unfold sequentially—very dangerous events that can kill any PC. Effects: Collapse check effects apply permanently to the PCs’ current region and impact all PCs.

Roll	Result
1	Ground drops sickeningly. DEX check or fall over. + to collapse checks.
2	Rock grinds. Ill wind blows from the depths of the earth. Candles go out.
3	Pebbles rattle and roll. Melee attacks suffer penalty.
4	Spiderweb fissures. Dust falls. Missile attacks suffer penalty.
5	Ground shakes with a dull groan. Listening checks suffer penalty.
6	Walls groan and creak. Splinters fly. Unarmoured characters suffer 1 damage.
7	Earth roars. Save vs paralysis or deafened. Local collapse .
8	Fissures yawn in ceilings. Rocks fall for damage. Local collapse .
9	Path breaks apart. Speeds reduced by 10’. Local collapse .
10	Walls collapse, pillars fall, rubble accumulates. Melee attacks suffer penalty. Local collapse .
11	Passages close. Feature three (if present) becomes inaccessible. Local collapse .
12	Eerie stillness. Ethereal cave wisps (page 10) provide light and fog minds. All spells suffer to every roll. + to collapse checks.
13	Massive shock. Sudden rupture. 2 local collapses.
14	Local flooding. Speeds reduced by 20’. Local collapse .
15	Passages fill up. Feature two becomes inaccessible. Local collapse.
16	Walls drop lower. Spaces become smaller. L ocal collapse .
17	Walls close in. Spaces become tighter. Speeds reduced by 20’. Local collapse . 18+ Region begins slamming shut. Local collapse . + to collapse checks.