Room numbers don’t kill you. Threats do. Most Mines walkthroughs go room by room: “Room 1 is safe, Room 2 is safe, Room 3 has Grumble.” This approach fails because The Mines is procedurally generated — your Room 3 might not be the same as this guide’s Room 3. Your Grumble might be on Room 5. Your first open cavern might be on Room 7.
This walkthrough is organized by threat. When you die, flip to the threat that killed you. The room number is irrelevant. The threat pattern is always the same.
Grumble is the first Mines-exclusive entity you’ll encounter, typically appearing between Rooms 3 and 8. It hangs from the ceiling and tracks movement, not sound — the opposite of Figure, which is blind and tracks by sound. Enter any Mines room. Your first glance should be upward — check the ceiling for a green glow. If you see green particles dripping from above, Grumble is there. Freeze immediately. Grumble’s detection is based on movement. If you’re moving when it looks at you, it spots you. If you’re frozen, it doesn’t. Wait 8-15 seconds for Grumble to move to another ceiling position. When it repositions, walk — don’t run — to the exit. Grumble has a 2-second reaction delay after repositioning. The most common Grumble death: entering a room, scanning horizontally for threats, never looking up, getting spotted, and dying before you understand what happened.
Open caverns are the single biggest threat in The Mines because they have no Hotel equivalent. They’re large irregular rooms with no closets, no beds, no side rooms with doors, and no hiding spots of any kind. When Rush screeches in an open cavern, you cannot hide. You must either sprint back to the previous room’s closet (3.5 seconds — doable if you’re close to the entrance) or use a Sprint Potion for guaranteed escape. The open cavern protocol: as you leave every room that has closets, mentally note “last safe closet: 2 rooms back, left wall.” When you enter an open cavern, immediately confirm you know where the last safe closet is. If you don’t know, find out before proceeding deeper into the cavern.
Giggle swarms appear around Rooms 8-12. Individual Giggles deal 5-8 damage per hit. A single Giggle is harmless. A swarm of 15-20 can drain your entire health bar in seconds if you try to fight them. The correct response to Giggles is the opposite of what the Hotel taught you. The Hotel taught you to face every threat — look at Screech, hide from Rush, outsmart Figure. Giggles are the first entity in DOORS where the correct response is “run away.” Sprint through the room. Don’t stop. Don’t fight. Giggles are slow — they can’t catch a sprinting player. If you’re trapped between two swarms, pop a Sprint Potion and break through the smaller one.
The minecart Seek chase appears around Rooms 30-35. Approach the cart straight-on. Walk in — don’t jump. Duck immediately upon entering because every minecart segment starts with a low-hanging beam at head height. Stay ducked until the cart stops completely. When the segment ends and you’re thrown forward, land running. Don’t stop to orient yourself. Guiding Light reappears after 1-2 seconds and the chase continues.