You find a gun in a dungeon...

Description (more info)

This was shared by u/WaffleThrone at r/d100. The original post can be found here.

I love guns in fantasy settings! Unfortunately, a lot of people seem to think that the only guns that can show up are flintlocks. I defy that. Guns should be just as weird as any other magical item.

Image source

Result

Kind of gun

Roll on "Kind of gun"

Main Material

Roll on "Main material"

Projectiles (bullets)

Roll on "Bullets (projectile type)" 

Previous Owner and their Modifications

Roll on "Previous owner and modifications"


Subcharts

Kind of gun (d20)

d20 Result

1

Flintlock pistol

2

Flintlock rifle

3

Revolver

4

Rocket launcher style tube

5

Arm cannon

6

Staff of bullet-shooting

7

Wrist-mounted

8

Shoulder mounted

9

On a belt, can fire without hands

10

Head-mounted

11

Shaped like a crossbow

12

Repeater

13

Machine pistol

14

Rifle hooked up to a backpack, Ghostbusters style

15

Turret, tripod-mounted

16

Stinger missile style, needs two people to hold it

17

Double barreled

18

Attached to a melee weapon's hilt

19

Crank-to-reload rifle

20

Wand of bullet-shooting

Main material (d50)

d50 Result

1

Copper

2

Rusted metal

3

Steel

4

Bronze

5

Ceramic

6

Titanium

7

Wood

8

Mummified flesh

9

Still living flesh

10

Sculpted marble

11

Jade

12

Onyx

13

Seashell

14

Ivory

15

Frozen fire

16

Unmelting Ice

17

Amorphous metal

18

Bone

19

Crab shell

20

A lot of insects stuck together

21

Living plants

22

Sandstone

23

Invisible material (Roll again to see what it feels like)

24

Mythril

25

Adamantite

26

Solidified magic

27

Quartz

28

Woven hair

29

Folded paper

30

Hardened light

31

Plastic

32

Twisting and writhing souls bonded together

33

Sculpted sugar crystal

34

Petrified living material

35

It's imaginary, not made of anything (Still shoots bullets though)

36

Tangible shadows

37

It's a ghost gun (Roll again for what it used to be)

38

Brass piping

39

Tungsten

40

The skull of a sentient creature

41

An ape's hand

42

Water that somehow holds its shape

43

Glass

44

White hot metal (Doesn't burn though)

45

The feather of an angel

46

A twisted mess of electronic parts

47

A demon's horn

48

Crystallized opium

49

Salt

50

Many teeth fused together

Bullets (projectile type) (d20)

d20 Result

1

Ceramic shards

2

Crystal shards

3

Super-heated blood

4

Gel that hardens on impact

5

It shoots in reverse; It sucks up materials and spits them out the back as bullets

6

laser beams

7

Bees, stinger first

8

Tiny demons with pointy horns

9

Little bits of zombie

10

Acid

11

Fire

12

Ice

13

Petrifying liquid

14

Slag

15

Boring bullets

16

Gold coins

17

Paper swans

18

Teeth

19

Arrowheads

20

shrapnel

Previous owner and modifications (d10)

d10 Result

1

A crusader of the gun god. He covered the entire gun in engravings of his holy symbol

2

A witch. She decorated the gun with occult trinkets and iconography. (Like little voodoo dolls hanging from a string attached to the bottom of the gun.)

3

A racist wizard. The only way the gun will fire is if the wielder is the same race as the wizard, or at least wearing their skin as gloves. (I recommend choosing a monstrous race, just to avoid some of the uncomfortable moral choices. Unless you like that sort of thing.)

4

An Aarakocra warrior. Wind chimes hang from the barrel of the weapon. They only ring when the weapon fires.

5

An orcish war-chief. He thought he knew how to improve the gun. He didn't. The gun is just covered in sharp pointy bits of metal that he hammered onto it.

6

A romantic gunslinger. The back of the gun has a secret compartment with a picture of his beloved.

7

A Modron. He hated the chaotic nature of guns. All the sloping curves of the gun are turned into flat, geometric planes.

8

Nobody. This gun was freshly made and placed into the chest. Who made it is a better question...

9

A monster! The gun isn't in a chest, it's in the hands of an evil gunslinger!

10

A spacer. The gun is covered in a variety of bizarre and confusing gizmos. You don't really know what they do, but sometimes they make weird noises and flash red.