Kanka

Kanka organizes a campaign around typed entities: characters, locations, organizations, quests, journals, events, creatures and other records can be related without forcing the game master to invent a database schema. Custom calendars, timelines and maps give those records temporal and geographic context. Roles and per-entry visibility allow one campaign to hold both public lore and unrevealed information, while players can collaborate without receiving complete administrative access. Exports and an API make the stored world more portable than a closed page collection.

The flexible entity model still needs conventions. If every note becomes a new type, tag or relation, navigation can become more work than preparation. Several presentation and family-tree features belong to paid plans, and groups should test permissions with a player account before trusting a secret-heavy campaign. Kanka does not run tactical maps or automate a rules system; it is the campaign's memory, not the whole table. It is an especially good fit for long games where people, factions and revelations change over many sessions.