The campaign manager built for Dungeon Masters

Your campaign,
finally connected.

Arcloom turns your NPCs, locations, quests, and session notes into a single, living world — where every @mention becomes a link and every session builds on the last. Less juggling, less forgetting, more time running the game.

Lost Mine of PhandelverDM

8

Sessions

Last logged 2 days ago

24

Entities

11 NPCs · 7 Locations

4

Characters

4 player characters

8The Spider's Web2 days ago

The party breached Cragmaw Castle and rescued Nundro Rockseeker, but Glasstaff slipped away through a hidden passage before they could stop him.

Cragmaw CastleGlasstaffNundro RockseekerWave Echo Cave

Built for the way you actually run a game

Build your world

Every NPC, place, item, and quest in one connected map of your campaign.

Never forget last session

Write notes the way you think. Arcloom keeps the history straight.

Run combat without switching tabs

Initiative, HP, stat blocks, and party health — all in one place at the table.

Give every character a home

Players keep their own sheets current. You see everything, always.

Watch your world connect itself

Every mention becomes a link. Your campaign's relationships draw themselves.

Show up to session preppedPro

AI surfaces loose threads, unresolved quests, and the faces your players are about to see again.

One place for everything in your world.

Every NPC, quest, item, and faction lives in one searchable, tagged library — linked to the sessions they appeared in and the characters they touched. You'll never lose track of who did what, or where that cursed ring ended up.

  • NPCs with race, class, alignment, and status — the way they evolve over a campaign
  • Quests that move with the story: Available → Active → Completed / Failed
  • Items with descriptions, history, and who's carrying them now
  • Toggle visibility per entity — show players only what they've earned
NameTypeTags
Sildar HallwinterNPC
ally
Cragmaw CastleLocation
dungeon
The Black SpiderNPC
villain
Lost Mine QuestQuest
active
Spider StaffItem
magic
Location Hierarchy
Sword CoastPhandalin

Sub-locations

Stonehill InnTavern
Barthen's ProvisionsShop
Shrine of LuckTemple
Townmaster's HallBuilding
Tresendar ManorRuins
Inventory· Barthen's Provisions
Rope (50 ft)41 gp
Torches (10)121 cp
Trail rations85 sp
Healing potion150 gp
Lantern, hooded35 gp

A world that feels real because it nests like one.

Regions hold towns. Towns hold taverns, shops, and ruins. Shops hold inventory. Click down as deep as your world goes — and when a player asks what's on Barthen's shelves, you have an answer.

  • Nest locations as deep as you need — regions, towns, districts, rooms
  • Shop and tavern inventories with quantities and prices
  • Breadcrumb navigation between parent and child locations
  • Every location shows up in your relationship graph automatically
Log Entries· 4 entries

You (DM)

The party entered Cragmaw Castle from the eastern gate. Sildar Hallwinter confirmed that Gundren was held in the north tower.

Sarah

Aelindra casts Suggestion on the Bugbear Guard — nat 20 on the save. He just walks away.

Mike

Dorin smashes the lock off the cell door. Nundro Rockseeker was rescued — alive, barely.

You (DM)

The party found a letter signed only “The Black Spider” — referencing Wave Echo Cave and “the forge of spells”.

Add a log entry... (Markdown supported, @ to mention)

⌘↵ to save

Write naturally. Arcloom does the connecting.

Type session notes the way you'd jot them in a notebook. The moment you @mention an NPC, a location, or a quest, Arcloom turns it into a structured link — logging who appeared, what happened where, and which threads are still dangling. Your history writes itself.

  • @mention any entity inline while you type
  • Every mention auto-links — across sessions, forever
  • Markdown for headers, lists, and emphasis
  • Search and filter your entire campaign history
  • AI reads each session to flag what changedPro

Run combat without leaving the table.

Pull monsters from the SRD, track HP per creature, and keep the party's health in view — all in the same tab you've been using all session. No app-switching, no tab-flipping.

  • Full SRD creature library with instant search
  • Visual HP bars for every creature and player
  • Optional party health panel — toggle on when you need it
  • Stat blocks inline, exactly when you need them
  • Full Compendium: monsters, spells, magic items
Ambush at Cragmaw Castle
Party Health
Aelindra32/42
Sarah
Dorin28/45
Mike
Bugbear ChiefAC 16 · CR 3
45/54
HobgoblinAC 18 · CR 1/2
12/27
Goblin 1AC 13 · CR 1/4
0/7
Goblin 2AC 13 · CR 1/4
1/7

Small humanoid (goblinoid), neutral evil

Armor Class 15 (leather armor, shield)

Hit Points 7 (2d6)

Speed 30 ft.

STR
8
(−1)
DEX
14
(+2)
CON
10
(+0)
INT
10
(+0)
WIS
8
(−1)
CHA
8
(−1)

Skills Stealth +6

Senses darkvision 60 ft., passive Perception 9

Languages Common, Goblin

Challenge 1/4 (50 XP)

Actions

Scimitar. Melee Weapon Attack: +4 to hit, reach 5 ft. Hit: 5 (1d6+2) slashing damage.

Aelindra Thornwick

Half-Elf · Sorcerer · Lv 7

Played by Sarah

PC

HIT POINTS

32

/ 42

ARMOR CLASS

15

SPEED

30 ft

Ability Scores

STR

8

−1

DEX

14

+2

CON

12

+1

INT

13

+1

WIS

10

+0

CHA

18

+4

Backstory

Raised in the Thornwick Academy, Aelindra discovered her wild magic during a failed experiment that destroyed the east wing...

Players get a home. You get visibility.

Every player character lives in Arcloom with full stats, inventory, and backstory. Players run their own sheets — you see them all, stay in the loop on level-ups, and never chase down a stat in Discord again.

  • Portraits, stats, saves, and full inventory with currency and attunement
  • Rich-text backstories that show up in sessions and the graph
  • Players edit their own — DMs see everything
  • Characters link into mentions, quests, and relationships automatically

Your campaign's shape, drawn for you.

Every @mention, every quest giver, every item tied to a villain — Arcloom draws it all into a living map of your campaign. Nothing to maintain by hand. Click any node to jump straight to it. The connections were always there; now you can see them.

  • Your campaign's relationships, drawn automatically
  • Click any node to dive into the entity behind it
  • AI suggests connections you may have missedPro
  • Filter by NPCs, locations, items, quests, or characters
Search…
Gundren RockseekerSildar HallwinterSister GaraeleElmar BarthenHarbin WesterThe Black SpiderPhandalinWave Echo CaveCragmaw CastleTresendar ManorStonehill InnMystic RaritiesLightbringerSpider StaffFind GundrenDrive Out RedbrandsAelindraDorin
· 18 entities, 20 links
Characters
Invite players
Aelindra ThornwickHalf-ElfSorcererLvl 7
Played by Sarah

Raised in the Thornwick Academy, Aelindra discovered her wild magic during a failed experiment that destroyed the east wing...

Dorin IronforgeDwarfFighterLvl 7
Played by Mike

Dorin left his clan's mountain stronghold after a disagreement with the elders over a trade deal gone wrong. He wanders seeking work as a mercenary...

Lyra SwiftwindHalflingRogueLvl 7
Played by Jen

Quick-fingered and quicker-witted, Lyra grew up picking pockets in Baldur's Gate before a botched job forced her to flee the city entirely...

Bring players in. Keep the secrets out.

Share a link and your players get their own view of the world — the parts you've chosen to reveal. They manage their characters, read the lore they've uncovered, and add their own notes. Nothing hidden ever leaks.

  • Invite links that expire in 30 days — regenerate anytime
  • Per-entity visibility toggles, changeable anytime
  • Players own their characters; you own the world
  • Shared notes for the party, private notes for the DM
  • DM notes stay DM-only, always

AI that works for the DM, not around them.

Pro

Before every session, Arcloom surfaces your open quests, recent entities, and threads that have gone quiet — plus optional AI suggestions pulled from your own notes. You approve every change. Nothing ever touches your world without your say-so.

Session Prep
▶ Start New Session
Last SessionSession #8 · View full →

Into Cragmaw Castle

The party rescued Gundren Rockseeker and obtained his family map to Wave Echo Cave. A drow spy escaped through a back window...

Active Quests (2)

ActiveClaim the Forge of Spells
ActiveThe Banshee's Bargain

Key Entities

Nezznar the Black Spider
Last session
Gundren Rockseeker
Last session
Sister Garaele
1 session ago

Session Tools

Session Prep Assistant
Generate Brief
Loose Thread Detection
Analyze Threads
AI Capabilities

Relationship suggestions

Spots connections between entities hiding in your notes

Quest status detection

Notices when a quest is completed, failed, or quietly abandoned

Loose thread detection

Flags plot threads that have gone cold

Session prep notes

Drafts a brief tailored to what just happened

Portraits & illustrations

Generate art for characters, places, and items on demand

Everything else you need at the table

SRD Compendium

Monsters, spells, and magic items, one search away.

Quest Tracker

Watch quests move through the campaign: available, active, completed, failed, abandoned.

Location Hierarchy

Nest shops inside towns inside regions. Navigate your world like a world.

Run your next session with everything in one place.

Free for DMs and players. AI features included with Pro.

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