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Asteroid and Moon Encounters for Spelljammer
D&D Encounters Spelljammer

Asteroid and Moon Encounters for Spelljammer

Duncan Thomson
3 plasmoid explorers and 1 plasmoid warrior are desperately trying to attract your attention...

Encounters for asteroids and moons using monsters from Spelljammer and the Monster Manual.

Tables for Asteroid Encounters (levels 1-4 & levels 5-10), Asteroid Encounter Details and Asteroid Beasts.

All spelljammer -  trinkets | encounters - astral sea | asteroids | dead gods | rock of bral | wildspace | ships

[Art by Indi Martin]

Asteroid and Moon Encounters

Asteroids occupy an important place in Spelljammer and Wildspace adventures. Places for hidden bases, space ruins, hermits, mining operations and secret pirate meetings. This can also apply with moons and similar space satellites.

Encounters include diguised beholders, pirate ships, sad giants, elven researchers, explorers and various types of space vermin.

More tables at Spelljammer Encounter Tables on DM's Guild

Spelljammer Encounter Tables on DM's Guild Spelljammer and Beyond Bundle on DM's Guild

Asteroid Encounters (Levels 1-4)

d20Asteroid and Moon lvl 1-4
1 1d2 ssurran defilers (BAM) or 1d2 lunar yetis
2 Furious is a Shrike captained by a githyanki buccaneer (BAM) with 2d4 bandits as crew. They are inexperienced pirates. or roll on Ships lvl 1-4
3 2d4 space swine (BAM) or roll on Asteroid Beasts
4 2d4 aarakocra or 1 adult kruthik (MotM) and 1d6 young kruthiks (MotM)
5 1d6+1 dohwars (BAM) with 2d4 space swine (BAM) or roll on Space Merchants lvl 1-4
6 2d6 chwinga astronauts (BAM) or several floating spores of jammer leaches (BAM)
7 1d4 plasmoid explorers (BAM) and 1 plasmoid warrior (BAM) or roll on Cosmic Oozes lvl 1-4
8 2d6 mollymawks (BAM) or roll on Asteroid Beasts
9 1d3 deep gnome miners with 1 autognome or 1 artuk elder (BAM)
10 1 brown scavver (BAM) or 2d4 winged kobolds
11 A strong astral breeze (treat as Strong Winds - DMG) or 1d2 enlightened martial arts adepts (MotM)
12 1d2 lunar druids on giant space hamsters or 1d4 stone cursed (MotM)
13 1d6 darkmantles or roll on Asteroid Beasts
14 1d6 mephits (mix of dust, ice and smoke) or 2d4 gray scavvers (BAM)
15 1 aartuk priest and 1d2 aartuk warriors (BAM) or 1 flail snail (MotM)
16 Lunar Badger is a Lamprey ship with an autognome captain and 2d4 gnome acolytes looking for a particular place; or roll on Ships lvl 1-4
17 1 neh-thalggu or roll on Aberrations lvl 1-4
18 1d3 lunar dragon wyrmlings (BAM) or roll on Asteroid Beasts
19 1 gaj (BAM) or 1d6 chwinga astronauts (BAM) on space guppies (BAM)
20 1 moon devil (air elemental stats) or 1 starlight apparition (BAM)

Asteroid Encounters (Levels 5-10)

d20Asteroid and Moon lvl 5-10
1-2 1 githyanki xenomancer (BAM) or 1d3 stone giants
3-4 1d2 braxats or 1 bheur hag (MotM) with 2d4 space eels (BAM)
5-6 1 eye monger (BAM) or a portal with many tentacles reaching through (as black tentacles spell but larger)
7-8 1d3 galeb duhr or 1 githzerai enlightened (MotM)
9-10 1 megapede (BAM) or 1d2 young lunar dragons (BAM)
11 A murmuring (or glowing) mist of shifing colors covers the area or 1 cyclops with 2d4 lunar giant goats
12 1d4 plasmoid warriors on astral black puddings (fly 40 ft) or roll on Cosmic Oozes lvl 5-10
13 1 gray slaad or roll on Aberrations lvl 5-10
14 Castaway is a Nightspider crewed by 2d4 neogi pirates (BAM), 1 umber hulk and a neogi void hunter (BAM) captain; or roll on Ships lvl 5-10
15 1 ssurran ruler (lizardfolk king stats) with 1d2 ssurran defilers (BAM) and 2d6 ssurran poisoners (BAM); or 1 young solar dragon (BAM)
16 1 mind flayer with a shield golem or Roll on Space Merchants lvl 5-10
17 1d3 b'rohgs (BAM) or 1d2 wereboars with 2d6 space swine (BAM)
18 1 aartuk elder (BAM) with 1d2 aartuk priests (BAM) and 2d4 aartuk warriors (BAM) or 1d4 earth elementals
19 Abyssal Plague is a Squid ship crewed by 2d4 giff crewmates (BAM) with an oni captain. They are bounty hunters; or roll on Ships lvl 5-10
20 1 adult lunar dragon (BAM) or 1 archdruid (MotM)

Asteroid Encounter Details

Use 1d10 for beasts and non-sentient creatures

1d20They are... (or one is...)
1 hiding from (or watching) something out in wildspace
2 surrounded by curious space guppies
3 watching a spelljammer ship in trouble
4 telepathic (telepathy 60 ft)
5 near a wrecked ship (or unusual ruins)
6 investigating a patch of space fungi (or carved stone faces)
7 unnerved by a zodar (BAM) which is watching them
8 glowing with a strange green light or marked by a moon deity
9 resting by (or investigating) a stone carving (or a runed portal)
10 by a mine entrance (or a deep crater)
11 astral fishing
13 trying to attract attention or mining something
14 searching for a secretive plasmoid community
15 eating lunar moss (or space eels)
16 playing a game involving rocks or building something
17 meditating or resting partway through a journey
18 carving a rock or watching a lunar dragon flying in complex patterns
19 singing mining songs
20 carrying a carpet of flying (or 1d4 potions of healing)

Asteroid Beasts (Levels 1-4)

d20Asteroid and Moon Beasts
1-2 2d4 giant space hamsters (BAM) or 2d6 gazers (MotM)
3-4 1d4 swarm of bats or 2d4 lunar giant lizards
5-6 2d6 giant fire beetles or 1 brown scavver (BAM)
7-8 1d3 lunar dragon wrymlings (BAM) or 2d4 stench kows (BAM)
9-10 1d6 space eels (BAM) or 1d3 chokers (MotM)
11-12 2d6 space mollymawks (BAM) or 1d3 guard drakes (MotM)
13-14 2d4 space swine (BAM) or 1d2 cave fishers (MotM)
15-16 2d6 stirges or 1d4+1 pteranodons
17-18 1d4 darkmantles or 2d4 gray scavvers (BAM)
19-20 1d4 cosmic giant toads or 1d2 basilisks

More tables at Spelljammer Encounter Tables on DM's Guild

Spelljammer Encounter Tables on DM's Guild Spelljammer and Beyond Bundle on DM's Guild

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