vs Kanka
The GM Deck vs Kanka: which is right for you?
Kanka is the most generous free worldbuilding tool in the TTRPG niche, with an open-source codebase and an unusually wide spread of entity types. The GM Deck is paid-only and trades that breadth for a tighter, more opinionated DM workflow with a session runner, combat tracker, and structured templates.
If your top requirement is “free, forever, with my data portable” you should look at Kanka first; it is genuinely good at that job. If you would rather spend your time prepping and running sessions than configuring a wiki, The GM Deck is shaped around that work.
At a glance: The GM Deck vs Kanka
| Feature | The GM Deck | Kanka |
|---|---|---|
| Worlds and entity pages | ✓ | ✓ |
| Custom entity templatesDefine your own page shape with structured fields. | ✓ | ◐Custom attributes per entity, not full templates. |
| Pre-shaped tabletop templatesNPC, Tavern, Mob, Encounter, Shop Table, Roll Table, Vehicle, Faction, etc. | ✓ | ◐Generic entity types you flesh out yourself. |
| Maps with linked pins | ✓ | ✓ |
| Timelines | ✓ | ✓ |
| Plotline status workflowSeeded / active / resolved threads tied to entities. | ✓ | ◐Quests entity, no built-in status workflow. |
| Session runnerThree-column live-play layout for game night. | ✓ | ✕ |
| Combat / initiative tracker | ✓ | ✕ |
| Roll tables | ✓ | ◐Available as a community plugin. |
| Dice roller (3D) | ✓ | ✕ |
| Player handouts (share links) | ✓ | ◐Shared via campaign permissions, not per-page links. |
| Player collaboration / co-DM | ✕ | ✓Granular per-entity permissions per member. |
| World export to portable file | ✓ | ✓ |
| Open-source / self-hostable | ✕ | ✓ |
| Free tier | ✕ | ✓Kobold tier is free forever with caps. |
Where Kanka is genuinely better
Kanka has been built in the open by a small team for years and it shows in the places that matter to free-tier and self-hosting users.
A genuinely usable free tier
The free Kobold plan is not a crippled trial; it covers a real single-DM campaign with most of the entity types unlocked. Caps apply to file uploads and a few advanced features, but you can run a campaign for a year on it without hitting a paywall. The GM Deck is paid-only with a 14-day trial.
Open-source codebase
Kanka publishes its source on GitHub and accepts community contributions. If you care about software you can audit, self-host, or fork, that matters. The GM Deck is a closed-source commercial product hosted on AWS.
Multi-user collaboration with granular permissions
Kanka campaigns can have multiple members with per-entity permissions, so co-DMs and even players can edit the parts of the world they own. The GM Deck is a single-DM tool today; we offer share links for player handouts but no shared editing.
A wider menu of entity categories
Calendars, religions, races, families, journals, conversations, and more come pre-modelled in Kanka. The GM Deck’s built-in entity types are intentionally narrower (the work goes into deeper templates rather than more categories), but if you love a setting with a dozen distinct lookup categories Kanka provides them out of the box.
Where The GM Deck is better than Kanka
The GM Deck is shaped around running the table, not modelling every possible facet of a setting.
A real session runner
Kanka has an entity for sessions but no runner: you read your wiki and take notes in a separate document at the table. The GM Deck has a three-column live-play layout for sessions, with queued plotlines and locations on the left, rich-text notes in the middle, and a per-session dice log on the right. Pins, handouts, and roll results land in the runner log automatically.
Combat and initiative built in
The GM Deck includes a combat tracker with initiative, HP and condition tracking, and turn order. Kanka has no built-in combat tracker, so most DMs there pair it with a separate initiative tool at the table.
Templates that prompt you for the right fields
The GM Deck’s entity templates are tabletop-shaped from the start: Generic NPCs ask for stats, faction, motive, and attitudes; Taverns ask for proprietor, rooms, and rumours; Mobs ship statblock-shaped fields. Kanka offers custom attributes you can add to any entity, but the starting page is closer to a blank wiki article than a structured form.
Plotlines as a status workflow
Plotlines are their own page type with a seeded / active / resolved status, branching threads, and links to the entities they touch. Kanka has a Quests entity with parent/child relationships, but no first-class status workflow you can use to drive the plot forward session by session.
A modern, focused UI
Kanka covers a lot of ground and the UI shows it: lots of menus, lots of options, lots of categories. The GM Deck’s interface is narrower by design, with a dark D&D-themed aesthetic and far fewer top-level surfaces. Whether that is a win is a matter of taste; for DMs who bounce off Kanka’s density, it tends to be the deciding factor.
Pricing: The GM Deck vs Kanka
The GM Deck
- Standard£4/mo£40 / yr if billed annually. 14-day free trial.
- Premium£8/mo£80 / yr if billed annually. 20 GB storage and priority support.
Kanka
- Kobold (Free)$0Most features, capped uploads and a few premium-only flourishes.
- Owlbear$5/mo~$50 / yr. Premium campaigns, larger uploads, no ads.
- Wyvern$10/moMore premium campaigns and higher per-campaign caps.
- Elemental$25/moMost premium campaigns and the highest caps; for power users.
Kanka prices fluctuate as the team iterates on tier perks; check their pricing page for the current numbers and what each tier unlocks. Our prices are flat-rate; Polar localises the figure your card sees at checkout.
Coming from Kanka?
The most common reason DMs move from Kanka to The GM Deck is a missing session-running surface: Kanka is excellent for the wiki side of worldbuilding but most DMs end up keeping a separate document or VTT open at the table for live play. There is no automated Kanka importer today, but Kanka’s entity exports are JSON-shaped and our entity templates accept the same kind of structured fields, so a copy-paste pass through the entities you actually reference works in practice. If your campaign relies on Kanka’s multi-user permissions or its open-source nature, those are real reasons to stay; The GM Deck is single-DM and closed-source today.
Try The GM Deck
14-day free trial on Standard. A card is required to start the trial; cancel any time before it ends and you will not be charged. If your subscription ever lapses, your worlds stay on your account in read-only form so you can still copy anything you need out by hand.
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