The delver, as the game draws it: the root hollow monster, seen from the front.

The Root Hollow · monster · floor 16 down

Delver

168 HP and a bite of 15 on floor 16; 202 HP and 17 bite on floor 20. 10–14 basic swings fell one on floor 16 before gear.

Play

Free, in the browser, phone or desktop.

How it fights

The delver attacks from under you. When you are between 1.6 and 6 tiles away it sinks into the floor and is gone: no swing, skill or knockback reaches it while it is down, and it bites nobody. At the same instant a red ring of 0.9 tiles radius, cracked stone with violet spores in it, opens on the spot you were standing on. 1 s later the delver bursts up through the ring, for 12 base damage (31 on floor 16) if any part of you is inside it. The ring does not follow you: stepping clear of it means moving 1.24 tiles from its centre, 0.3 s at the Warrior’s full speed, so a hero who keeps walking is never hit and one who stands to trade blows always is. After it surfaces it walks for 3 s before it can burrow again, and that is the time to kill it. At most 4 are alive at once.

Base HP
44
Base bite
6
Bites at most every
1.08 s
Base speed
1.3 tiles/s
Body radius
0.38 tiles
XP
6 (elite 30)
Coin chance
50%
Item drop chance
11% × the floor’s loot

Floor by floor

The same delver gets tougher each floor: the floor multiplies its HP, bite and speed. An elite delver has 3× the HP, gives 5× the XP and always drops at least a magic item plus 5 coins. “Share of waves” is the part of the floor’s wave monsters that roll as a delver.

The delver on each floor it appears on
FloorHPElite HPBiteSurfacingSpeedShare of wavesItem drop
1616850415311.687.2%31.9%
1717652816321.699.7%33.0%
18 waypoint18555516331.712.2%34.1%
1919458217331.7214.8%35.2%
20 boss20260617341.7316.6%36.3%
25 boss*463138928551.8216.6%46.3%
30 boss*1060318045891.8216.6%59.2%

* Floors past 20 are not written out in the game’s tables: their numbers are the engine’s own extrapolation from floor 20 (HP and bite keep growing every floor).

In the same band