A Minimalist Virtual Tabletop for D&D and TTRPGs
A lightweight DM session toolkit - easy to learn, easy to set up.
Only the DM pays. Players always join free.
SDMT is your session command center - not a full character-sheet system. Bring your existing sheets (paper, PDF, or your preferred app).
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.
See SDMT in Action
Track turns, HP, and effects at a glance with an initiative view built for live table pacing.
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 Quick Stats
Track at-table essentials like HP, AC, statuses, and replacements. Use your existing full character sheets alongside SDMT.
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
Best for one campaign at a time
- ✓ 14-day free trial
- ✓ 1 active campaign
- ✓ 1 GB storage
- ✓ Full virtual tabletop
- ✓ All DM tools included
- ✓ Players join free
Pro
Best for multi-campaign groups
- ✓ 14-day free trial
- ✓ Unlimited active campaigns
- ✓ 5 GB storage
- ✓ Full virtual tabletop
- ✓ All DM tools included
- ✓ Players join free
- ✓ Priority support
Playing in a friend's campaign?
Players always join free — no subscription needed, ever. Create a free account to save your character, track initiative, and join sessions from any device.
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.
Select or Create a Campaign
First Session Checklist
- Create your first campaign
- Open a campaign workspace
- Start a live session
Campaign
format_list_numbered Initiative Tracker
| Select | Name | Class | Init | HP | AC | Effect 1 (Name / Rounds) | Effect 2 (Name / Rounds) | Effect 3 (Name / Rounds) | Effect 4 (Name / Rounds) | Notes |
|---|
Random Encounter:
home Location Tracker
people NPCs & Monsters
add_circle Add NPC/Monster
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.
sticky_note_2 General Notes
Campaign Sessions
Session Analytics
| Category | Metric | Value |
|---|---|---|
| Loading analytics… | ||
Campaign Progress Over Time
No session timeline data yet.
No sessions yet. Create your first session above.