A minimalist DM toolkit — easy to learn, easy to set up.

Only the DM pays. Players always join free.

Create a campaign, start a session, and share a code in minutes.

Everything you need to run tonight's session

Start with the core DM tools, then open the full toolkit when you need it.

Fast setup

Players join free

Built for live play

🗺️

Interactive Virtual Tabletop

Upload maps with configurable grids, place and drag tokens for PCs and NPCs, and share the live tabletop with players in real time. Full canvas-based VTT built right in.

⚔️

Initiative Tracker

Track HP, temp HP, AC, and effects per character. Tiebreaker rolls, tactical notes, and clear turn order — everything in one place during combat.

🏰

Location & Room Tracker

Organize buildings and rooms with exploration status, threat levels, and assigned NPCs. Designed to stay out of your way during a live session.

Explore the full toolkit

👹

NPC & Monster Library

Create an NPC or monster once, reuse it across all your campaigns. Stat blocks, images, voice recordings, and room assignments — all in one card.

🧙

Player Character Management

Track PC status, HP, deaths, and replacements. Players manage their own characters in real time during live sessions.

🎲

Live Multiplayer Sessions

Share a session code and your players join instantly. Separate DM and player views with real-time sync for initiative, maps, and tokens. Players always free.

🎞️

Animated Battle Maps

Use animated GIF and video battle maps on the VTT. Looping animations play live for both DM and players — no extra setup required.

📅

In-World Calendar

Track campaign time with a fully customisable in-world calendar. Define your own months, week lengths, and year rules — then log session events and world happenings by date.

🗾

Campaign Maps

Upload world and region maps and share them with players. Control exactly what each player can see and mark points of interest as the campaign unfolds.

Choose Your Plan

Every plan starts with a free 14-day trial. No credit card required.

Basic: 1 campaign, 1 GB storage

Pro: unlimited campaigns, 5 GB storage, priority support

Basic

Best for one campaign at a time

$ 2.99 /month

1 campaign 1 GB storage

✓ 14-day free trial
✓ 1 active campaign
✓ 1 GB storage
✓ Full virtual tabletop
✓ All DM tools included
✓ Players join free

Best Value

Pro

Best for multi-campaign groups

$ 5.99 /month

Perfect for active DMs

Unlimited campaigns 5 GB storage Priority support

✓ 14-day free trial
✓ Unlimited active campaigns
✓ 5 GB storage
✓ Full virtual tabletop
✓ All DM tools included
✓ Players join free
✓ Priority support

Run your next session without the setup headache.

Try Sinister™ free for 14 days — no credit card needed. Only $2.99/month (Basic) or $5.99/month (Pro), and your players always join free.

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Choose Your Role

Are you running a campaign or joining one?

🎲

Dungeon Master

Create and manage campaigns, run sessions, control NPCs and encounters

🎭

Player

Join multiplayer sessions, play with your character, interact with the world

Free

$0/forever

✅ 1 Campaign
✅ 10 NPCs
✅ 5 Buildings per campaign
✅ 1 Map upload
✅ 15 Portrait/creature images
✅ 50 MB storage
✅ Initiative tracker
✅ Dice roller
✅ Player view

Pro

$2.50/month

or $25/year (save 17%)

✅ Unlimited campaigns
✅ Unlimited NPCs
✅ Unlimited buildings
✅ Unlimited map uploads
✅ Unlimited images
✅ 500 MB storage
✅ Everything in Free
✅ Priority support

Stripe billing launching soon — stay tuned!

Admin Dashboard

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Total Users

—

Active Subscriptions

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New Subs (30 days)

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Cancellations (30 days)

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Free Users

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Active Trials

All Users

Display Name	Email	Tier	Status	Campaigns	Joined	Last Sign In	Actions
Loading...

Campaign

format_list_numbered Initiative Tracker

Round: 1

Use Next Turn to advance through combat. When it cycles back to the top, the round will advance automatically.

flash_on Apply Effect to Multiple:

Effect Name: Duration:

swords Bulk Damage/Healing:

Save for Half

Select combatants using checkboxes, enter damage/healing amount, then click apply.

Select	Name	Class	Init	HP	AC	Effect 1 (Name / Rounds)	Effect 2 (Name / Rounds)	Effect 3 (Name / Rounds)	Effect 4 (Name / Rounds)	Notes

Manual Add to Initiative:

Same Initiative

Random Encounter:

Include Active PCs

home Location Tracker

people NPCs & Monsters

Show all systems

add_circle Add NPC/Monster

Name:

Type:

HP:

AC:

Initiative Bonus:

Grid Width:

Grid Height:

Notes:

Image:

upload_fileImport / Export Bestiary JSON

Paste or upload a JSON bestiary file to import. Each creature must include a rulesets array. Duplicate names are skipped.

Upload JSON file:

sticky_note_2 General Notes

Campaign Sessions

New Session

Session Name *

Date *

Start Time

End Time

Status

Optional: Link in-world calendar date

In-world calendar date

Year

Month

Day

End Year

End Month

End Day

In-world date is currently unlinked. Use the Calendar tab day drawer to link sessions quickly.

Optional: Campaign date behavior

Set as campaign start session Advance campaign date when completed

Notes

Session Analytics

Category	Metric	Value
Loading analytics…

Campaign Progress Over Time

No session timeline data yet.

Attendance metrics are not tracked yet. Add attendance tracking to enable per-session player attendance analytics.

No sessions yet. Create your first session above.

person Player Characters

add_circle Add Player Character

Name:

Class:

Race:

Max HP:

Current HP:

AC:

Initiative Bonus:

Age:

Birth Month:

Birth Day:

Image:

Notes:

Battle Maps

Map Management

Upload New Map:

Map Name:

Building/Location:

Room:

Description:

Grid Size (pixels):

Grid Mode:

Grid Opacity (62%):

Grid Offset X (px):

Grid Offset Y (px):

Map Media: Recommended: PNG/JPG/WebP or MP4/WebM, up to 10MB

Battle Maps Library

Select a map from above to load the virtual tabletop

No Map Selected

1 square = 5 ft

Grid

Layout Presets

Classic: Standard centered map with overlay drawers.

Rail: Compact left control rail for map-first focus.

Workbench: Docked side modules for utility-heavy DM flow.

Hotkeys

L cycle layout presets

I toggle initiative sidebar

Esc close active tabletop popovers

Shape

Size (feet)

Width (feet)

Rotation (°)

Color

Opacity: 40%

Visibility

Spell Name (optional)

Active Overlays

Name

Type

Grid X

Grid Y

Width (cells)

Height (cells)

Visibility

Description (optional)

Active Traps

5 ft squares

No players connected yet

Battle Map

1 square = 5 ft

Synced

Shape

Size (feet)

Width (feet)

Rotation (°)

Color

Opacity: 40%

Spell Name (optional)

Share with Party

Visible Overlays

You can remove overlays you created. DM can remove any overlay.

My Token

Token Facing:

info Rotate your token one edge at a time

Initiative Order

No active combat

No notes yet. Click "+ Add" to get started.

No shared notes yet. Share a note with the party!

Dice Roller

No dice selected

Modifier:

Apply modifier to every die in this roll

Initiative roll mode

Secret roll (DM only)

History

Everything you need to run tonight's session

Interactive Virtual Tabletop

Initiative Tracker

Location & Room Tracker

NPC & Monster Library

Player Character Management

Live Multiplayer Sessions

Animated Battle Maps

In-World Calendar

Campaign Maps

Choose Your Plan

Basic

Pro

Run your next session without the setup headache.

Login

Sign Up

Choose Your Role

Dungeon Master

Dungeon Master

Player

Choose Your Plan

Free

Pro

admin_panel_settingsAdmin Dashboard

All Users

User Details

Support Tickets

Admin Audit Log

Select or Create a Campaign

First Session Checklist

Campaign

streamLive Session

format_list_numbered Initiative Tracker

home Location Tracker

people NPCs & Monsters

Edit NPC/Monster

sticky_note_2 General Notes

Create New Note

calendar_monthCampaign Sessions

New Session

analyticsSession Analytics

Campaign Progress Over Time

Attendance

person Player Characters

Edit Player Character

mapBattle Maps

No Map Selected

tokenToken Lifecycle

auto_awesomeSpell Overlays

Active Overlays

bug_reportMap Traps

Active Traps

format_list_numberedInitiative Tracker

Join Session

Session Preview

Select Your Character

Character Name

⚡ Active Effects

Battle Map

auto_awesomeSpell Overlays

Visible Overlays

account_circle My Token

swords Initiative Order

travel_explore Shared Location Maps

calendar_month Campaign Calendar

people Party

📜 Session Activity

Admin Dashboard

Live Session

Campaign Sessions

Session Analytics

Battle Maps

Token Lifecycle

Spell Overlays

Map Traps

Initiative Tracker

Spell Overlays

My Token

Initiative Order

Shared Location Maps

Campaign Calendar

Party