Tools & Platforms

A portable, offline-first DM and worldbuilding tool. Build worlds, run sessions, share with others and play together, all in one app. License: CC BY-NC 4.0 · Free to use Everything core works **without an account**. You only need one to play online, publish to the marketplace, or download other users' content. /images/general-media/1791564204_7DEx9r3t.webp Worldbuilding - Era Timeline: Split your world's history into eras on a timeline bar and move between them. Each era keeps its own map, pins, nested location maps and day-by-day timeline pins linked to cards and sessions. You can show the same city before the war and after it. - Templates & Packages: Every world is built on a template (D&D 5e is built in) and pulls content from packages. A package is a bundle of cards you can install into any world, link to other packages, or share on the marketplace. Custom templates are coming. - Codex: Schema-driven cards for NPCs, monsters, spells, items, locations and more. Every reference is a tappable link. Pin cards to the top, preview any card with a long press, and search by name, tag, category or text. - World Map: Pins, grid and scale, drawing, fog of war, and nested maps you can walk into (districts, dungeons, taverns). - Mind Map: An infinite canvas with linked nodes, workspaces, freehand drawing and undo/redo. /images/general-media/1791564252_TB7zwrCp.webp Running the Session - Second Screen: Give the table its own view. Pop out a window onto a second monitor, cast to a TV or projector, or project into every connected player's app. You choose how battle maps, images, cards and PDFs go out. Fog of war and hidden tokens stay hidden. - Battle Map: The session screen *is* the map, with the encounter panel and event log on top. It has layers, fog of war, AoE templates, 5e diagonal rules, creature-sized tokens, shapes and text, a DM-only layer, hidden tokens, movement trails for the round, and two maps joined into one. - Combat Tracker: Initiative, HP (with hit-dice rolls), conditions, turn order and an event log. - 3D Dice: Dice roll across the screen with named styles. Skills and saving throws roll from the character sheet with one tap. - Soundpad: Layered ambience with gapless loops, fades and ready-made soundpacks. - PDF Library: PDFs kept inside the world, opened in tabs and shareable with players. /images/general-media/1791564292_BnuuXJTS.webp Characters - Full 5e rules: Species, class, subclass, background and feats fold into one sheet. Each sense, resistance, proficiency, trait and always-prepared spell shows where it came from. Also covers multiclassing, spell slots, class resources (Rage, Bardic Inspiration, sorcery points…), weapon mastery, and short and long rests. - Character Builder: Pick species, class, subclass, background, ability scores, skills, starting equipment and feats from the SRD and any installed pack. - Level-Up: HP, proficiency bonus and hit dice update automatically. ASIs, feats, subclass and spell picks wait as pending choices. /images/general-media/1791564330_JBRRDNZ4.webp Playing Online - Online worlds: Put a world, package or character online and it stays the same on every device you sign in on. Players see the pictures even when the DM is offline. - Players: Join with an invite code, claim a character, move your own token on your turn, and send dice rolls to the DM's log. Shared cards update when the DM edits them. - .dmtz files: Export a world, package or character to one file and import it anywhere. No account or network needed. Content - SRD 5.2.1: Built in and works offline. - 19 one-tap packs: Tome of Beasts (1–3, 2023), Creature Codex, Monstrous Menagerie, Black Flag SRD, Deep Magic, Tome of Heroes, Vault of Magic, Tal'Dorei and more. - Ready-made worlds: 99 Devils of Uzrah's Palace (Shadowdark), Army of the Damned, The Cold Bounty, and soon our own campaign Aegis Act . - Marketplace: Publish worlds, templates, packages and characters as versioned snapshots with content previews. - Social: Profiles, follows, an activity feed, direct and group chats, and game listings with applications.

Codex Cryptica is an AI-assisted worldbuilding and campaign management tool built around a living knowledge graph instead of a folder of loose documents. Every character, faction, location, and event you create becomes a linked entity, so your world stays connected and explorable as it grows. Genre-agnostic across fantasy, sci-fi, cyberpunk, horror, post-apocalyptic, western, steampunk, and more.

Saga20 is the campaign tool that keeps up with your table. It is a full world builder, a campaign wiki, a session summarizer, a character sheet system and a shared player portal, and all of it runs off one action: hit record. Play the session, upload the audio, and Saga20 works out who spoke, writes the recap, and pushes what happened into every world page it touched. Characters, locations, factions and items each keep their own page, their own timeline, and a link back to the session where it happened. Most world builders need you to update them. This one updates itself. It works for every TTRPG system, from D&D across all editions to Pathfinder 1e and 2e, Call of Cthulhu, Cyberpunk RED and Vampire: The Masquerade, with character sheets built into the app. The app is quickly growing in popularity and is already being used and trusted by thousands of GMs. Description Every campaign wiki dies the same death. Immaculate for four sessions, then the group plays a long night, nobody writes it up, and a month later the wiki describes a campaign that no longer exists. Saga20 fixes that at the source. The session is the input, and the world updates because you played, not because you did homework afterwards. Underneath the automation is a proper world builder. Characters, NPCs, locations, factions, items, deities, starships, corporations, clues, house rules: anything in the campaign gets a real page, with rich text, images, custom icons and cover art, organized into folders and templates and custom entity types for whatever the world needs. Search reaches every page instantly. A campaign graph draws who knows whom. Interactive maps carry routes, regions, pins and the party's current position. Build it all by hand if that is the fun part, or you can import an existing world across from Obsidian, Notion, Google Docs or World Anvil and carry on from there. You can then upload session recordings to automatically update your world wiki. Anyone at the table can record, on a phone, a dedicated mic, Discord or Zoom, and nobody else has to install anything. Saga20 generates the Session Notes including choices, clues, quests and consequences that happened during the session then automatically updates the world pages so you'll always have an up to date wiki without having to spend hours after every session.  It is not only the GM's tool but a tool for the entire table. Players can read the campaign and session notes without an account, or choose to claim their own characters, keep their character sheets on the same page as the story, and arrive at the next session actually remembering the last one. The wiki can be themed to match the setting and published on its own link. Prep, play, notes and the whole table, in one place.