Creatures

40 of them, by how deep you have to go to meet one. Bosses are listed separately at the bottom.

What lives down there

34 of 34

Creature	Found	Health	Contact	Shot	Drops
Rock Mite	layer 1	18	9		Chitin
Cinder Moth	layer 1	10	8		Coal
Drip Slime	layer 1	24	8		Acid
Husk	layer 1	46	11		Chitin
Bat	layer 1	12	9		Chitin
Spitter	layer 1	22	5	9	Chitin
Crash Dummy	nowhere it spawns on its own	100
Shambler	layer 2	96	38		Ichor
Thresher	layer 2	52	26		Ichor
Culverin	layer 2	70	22	19	Ichor
Wisp	layer 2	26	19	17	Ichor
Stooper	layer 2	34	34		Ichor
Bee	nowhere it spawns on its own	6
Coal Bee	nowhere it spawns on its own	8
Skirmisher	layer 2	44	10	14	Ichor
Ashhound	layer 3	54	31		Cinder Heart
Emberwing	layer 3	30	26	17	Cinder Heart
Slagmaw	layer 3	96	29	22	Cinder Heart
Cinderling	layer 3	28	22		Cinder Heart
Censer Limb	nowhere it spawns on its own	240	21	16
Effigy Arm	nowhere it spawns on its own	960	44
Effigy Crown	nowhere it spawns on its own	720	30	22
Dune Hound	the desert	66	27		Sand
Scarab	the desert	58	23		Chitin
Tomb Sentinel	the desert	82	20	17	GoldOre
Warden Hand	the Sun Warden's hands	520	26
Frost Wolf	the cold	70	26		Ice
Ice Wraith	the cold	44	18	15	Ichor
Snow Harpy	the cold	48	30		Ice
Wyrm Segment	the Hoarfrost Wyrm's body	480	22
Rime Skitter	the cold	86	24		Ice
Iceback	the cold	118	30		Rimestone
Dune Strider	the desert	94	27		Sandstone
Amberback	the desert	126	32		Chitin

Each is summoned deliberately, so none of these can blunder into you in a tunnel.

Creature	Found	Health	Contact	Shot	Drops
Brood Mother	summoned	1350	16		Forge Core
Widow	summoned	3150	41	24	Silk Gland
The Censer	summoned	2200	34	26	Pyre Core
The Effigy	summoned	7200	36	30	Ascent Core
Sun Warden	the pyramid, summoned	2600	30		Sun Disc
Hoarfrost Wyrm	the frost temple, summoned	2200	30		Wyrmplate