Thing types

Main article: Thing

For a single table containing all Things, see Thing types by number.

Doom, Doom II, Final Doom[]

These tables include the following columns.

Decimal - Type number, in decimal
Hex - Type number, in hexadecimal
Version - First Doom version that thing appears in:
- S - Shareware
- R - Registered
- 2 - Doom II
Radius - Radius, in map units (note that the map "footprint" of a Thing is square, not round, so this is the distance from the center to the midpoint of an edge)
Sprite - First four letters of the name of all sprite graphics
Sequence - For animated sprites, default pattern through which the animation progresses. "+" indicates that certain gameplay developments (such as a monster being shot) may interrupt this pattern with additional graphics
Class:
- A - Artifact item. Counts toward ITEMS percentage at the end of a level
- P - Pickup. Player can pick the thing up by walking over it
- W - Weapon
- M - Monster. Counts towards kill percentage, hidden when using -nomonsters, respawns in Nightmare!
- O - Obstacle. Players and monsters must walk around
- ^ - Hangs from ceiling, or floats if a monster (aside from Commander Keen, who does not move; dead monsters, excepting Lost Souls, fall to the floor when killed)
Description

Artifact items[]

Decimal	Hex	Version	Radius	Sprite	Sequence	Class	Description
2023	7E7	R	20	PSTR	A	AP	Berserk
2026	7EA	S	20	PMAP	ABCDCB	AP¹	Computer map
2014	7DE	S	20	BON1	ABCDCB	AP	Health potion
2024	7E8	S	20	PINS	ABCD	AP	Invisibility
2022	7E6	R	20	PINV	ABCD	AP	Invulnerability
2045	7FD	S	20	PVIS	AB	AP	Light amplification visor
83	53	2	20	MEGA	ABCD	AP	Megasphere
2013	7DD	S	20	SOUL	ABCDCB	AP	Soul sphere
2015	7DF	S	20	BON2	ABCDCB	AP	Spiritual armor

Only one of these may be picked up per level, although any additional maps still count against the player's item tally. In multiplayer it is possible to pick another after dying and respawning.

Powerups[]

Decimal	Hex	Version	Radius	Sprite	Sequence	Class	Description
8	8	S	20	BPAK	A	P	Backpack
2019	7E3	S	20	ARM2	AB	P¹	Blue armor
2018	7E2	S	20	ARM1	AB	P²	Green armor
2012	7DC	S	20	MEDI	A	P³	Medikit
2025	7E9	S	20	SUIT	A	P	Radiation suit
2011	7DB	S	20	STIM	A	P³	Stimpack

Not picked up if the player's armor rating is at least 200%.
Not picked up if the player's armor rating is at least 100%.
Not picked up if the player's health rating is at least 100%.

Weapons[]

Decimal	Hex	Version	Radius	Sprite	Sequence	Class	Description
2006	7D6	R	20	BFUG	A	WP¹	BFG 9000
2002	7D2	S	20	MGUN	A	WP¹	Chaingun
2005	7D5	S	20	CSAW	A	WP²	Chainsaw
2004	7D4	R	20	PLAS	A	WP¹	Plasma rifle
2003	7D3	S	20	LAUN	A	WP¹	Rocket launcher
2001	7D1	S	20	SHOT	A	WP¹	Shotgun
82	52	2	20	SGN2	A	WP¹	Super shotgun

Not picked up if the player already has one, and is already carrying the maximum amount of the corresponding ammo.
Not picked up if the player already has one.

Ammunition[]

Decimal	Hex	Version	Radius	Sprite	Sequence	Class	Description
2007	7D7	S	20	CLIP	A	P¹	Ammo clip
2048	800	S	20	AMMO	A	P¹	Box of ammo
2046	7FE	S	20	BROK	A	P¹	Box of rockets
2049	801	S	20	SBOX	A	P¹	Box of shells
2047	7FF	R	20	CELL	A	P¹	Cell charge
17	11	R	20	CELP	A	P¹	Cell charge pack
2010	7DA	S	20	ROCK	A	P¹	Rocket
2008	7D8	S	20	SHEL	A	P¹	Shotgun shells

Not picked up if the player is already carrying the maximum amount of this type of ammo.

Keys[]

Decimal	Hex	Version	Radius	Sprite	Sequence	Class	Description
5	5	S	20	BKEY	AB	P	Blue keycard
40	28	R	20	BSKU	AB	P	Blue skull key
13	D	S	20	RKEY	AB	P	Red keycard
38	26	R	20	RSKU	AB	P	Red skull key
6	6	S	20	YKEY	AB	P	Yellow keycard
39	27	R	20	YSKU	AB	P	Yellow skull key

Monsters[]

Decimal	Hex	Version	Radius	Sprite	Sequence	Class	Description
68	44	2	64	BSPI	+	MO	Arachnotron
64	40	2	20	VILE	+	MO	Arch-vile
3003	BBB	S	24	BOSS	+	MO	Baron of Hell
3005	BBD	R	31	HEAD	+	MO^	Cacodemon
65	41	2	20	CPOS	+	MO	Heavy Weapon Dude
72	48	2	16	KEEN	A+	MO^	Commander Keen
16	10	R	40	CYBR	+	MO	Cyberdemon
3002	BBA	S	30	SARG	+	MO	Demon
3004	BBC	S	20	POSS	+	MO	Zombieman
9	9	S	20	SPOS	+	MO	Shotgun Guy
69	45	2	24	BOS2	+	MO	Hell Knight
3001	BB9	S	20	TROO	+	MO	Imp
3006	BBE	R	16	SKUL	+	M¹O^	Lost Soul
67	43	2	48	FATT	+	MO	Mancubus
71	47	2	31	PAIN	+	MO^	Pain Elemental
66	42	2	20	SKEL	+	MO	Revenant
58	3A	S	30	SARG	+	MO	Spectre
7	7	R	128	SPID	+	MO	Spider Mastermind
84	54	2	20	SSWV	+	MO	Wolfenstein SS

Beginning with version 1.4, Lost Souls neither respawn nor count toward kill percentage.

Obstacles[]

Decimal	Hex	Version	Radius	Sprite	Sequence	Class	Description
2035	7F3	S	10	BAR1	AB+	O	Barrel
70	46	2	10	FCAN	ABC	O	Burning barrel
43	2B	R	16	TRE1	A	O	Burnt tree
35	23	S	16	CBRA	A	O	Candelabra
41	29	R	16	CEYE	ABCB	O	Evil eye
28	1C	R	16	POL2	A	O	Five skulls "shish kebab"
42	2A	R	16	FSKU	ABC	O	Floating skull
2028	7EC	S	16	COLU	A	O	Floor lamp
53	35	R	16	GOR5	A	O^	Hanging leg
52	34	R	16	GOR4	A	O^	Hanging pair of legs
78	4E	2	16	HDB6	A	O^	Hanging torso, brain removed
75	4B	2	16	HDB3	A	O^	Hanging torso, looking down
77	4D	2	16	HDB5	A	O^	Hanging torso, looking up
76	4C	2	16	HDB4	A	O^	Hanging torso, open skull
50	32	R	16	GOR2	A	O^	Hanging victim, arms out
74	4A	2	16	HDB2	A	O^	Hanging victim, guts and brain removed
73	49	2	16	HDB1	A	O^	Hanging victim, guts removed
51	33	R	16	GOR3	A	O^	Hanging victim, one-legged
49	31	R	16	GOR1	ABCB	O^	Hanging victim, twitching
25	19	R	16	POL1	A	O	Impaled human
54	36	R	32	TRE2	A	O	Large brown tree
29	1D	R	16	POL3	AB	O	Pile of skulls and candles
55	37	R	16	SMBT	ABCD	O	Short blue firestick
56	38	R	16	SMGT	ABCD	O	Short green firestick
31	1F	R	16	COL2	A	O	Short green pillar
36	24	R	16	COL5	AB	O	Short green pillar with beating heart
57	39	R	16	SMRT	ABCD	O	Short red firestick
33	21	R	16	COL4	A	O	Short red pillar
37	25	R	16	COL6	A	O	Short red pillar with skull
86	56	2	16	TLP2	ABCD	O	Short techno floor lamp
27	1B	R	16	POL4	A	O	Skull on a pole
47	2F	R	16	SMIT	A	O	Stalagmite
44	2C	R	16	TBLU	ABCD	O	Tall blue firestick
45	2D	R	16	TGRN	ABCD	O	Tall green firestick
30	1E	R	16	COL1	A	O	Tall green pillar
46	2E	S	16	TRED	ABCD	O	Tall red firestick
32	20	R	16	COL3	A	O	Tall red pillar
85	55	2	16	TLMP	ABCD	O	Tall techno floor lamp
48	30	S	16	ELEC	A	O	Tall techno pillar
26	1A	R	16	POL6	AB	O	Twitching impaled human

Decorations[]

Decimal	Hex	Version	Radius	Sprite	Sequence	Class	Description
10	A	S	16	PLAY	W		Bloody mess
12	C	S	16	PLAY	W		Bloody mess
34	22	S	16	CAND	A		Candle
22	16	R	31	HEAD	L		Dead cacodemon
21	15	S	30	SARG	N		Dead demon
18	12	S	20	POSS	L		Dead former human
19	13	S	20	SPOS	L		Dead former sergeant
20	14	S	20	TROO	M		Dead imp
23	17	R	16	SKUL	K		Dead lost soul (invisible)
15	F	S	16	PLAY	N		Dead player
62	3E	R	16	GOR5	A	^	Hanging leg
60	3C	R	16	GOR4	A	^	Hanging pair of legs
59	3B	R	16	GOR2	A	^	Hanging victim, arms out
61	3D	R	16	GOR3	A	^	Hanging victim, one-legged
63	3F	R	16	GOR1	ABCB	^	Hanging victim, twitching
79	4F	2	16	POB1	A		Pool of blood
80	50	2	16	POB2	A		Pool of blood
24	18	S	16	POL5	A		Pool of blood and flesh
81	51	2	16	BRS1	A		Pool of brains

Other[]

Decimal	Hex	Version	Radius	Sprite	Sequence	Class	Description
88	58	2	16	BBRN	+	O¹	Boss Brain
11	B	S	20	none	-		Deathmatch start
1	1	S	16	PLAY	+		Player 1 start
2	2	S	16	PLAY	+		Player 2 start
3	3	S	16	PLAY	+		Player 3 start
4	4	S	16	PLAY	+		Player 4 start
89	59	2	20	none²	-		Spawn shooter
87	57	2	0	none³	-		Spawn spot
14	E	S	20	none⁴	-		Teleport landing

No part of the final boss is considered a monster by the engine.
BOSF is used for spawn cubes.
FIRE is used when a spawn cube turns into a monster.
TFOG is used while a teleporter is operational.

A certain number of additional objects (such as spawn cubes, rockets in flight, and Spider Mastermind corpses) may not be placed in a level at its outset, but are generated only during gameplay.

Trivia[]

There were several THINGS that were removed before the full public release. These Include:
- A "Zapper"
- An Office Chair
- A Broken Lamp
- Two lamps
- Three Empty Barrel types (with Empty Nukeage Barrel, Brown Barrel and Grey Barrel)
- A Rock Pillar (later used for the Inferno Sky)
- An Unknown small "Step Pyramid"-esque object
- A Small bush
- A Small Cypress tree
- A Marble Brazier
- A Corpse burning in a Marble Brazier
- A Pile of Corpses