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.

The PUM Companion app allows you to play tabletop RPGs by yourself (solo) and journal adventures digitally. Write notes and conversation dialogues, roll dice, keep track of your character sheets and plot nodes, advance your plot through Scene Beats, ask the oracles for inspiration, and improve your storytelling skills by a mile. App uses • Creative and fiction writing • Storytelling and journaling • Playing tabletop RPGs by yourself • World building and game prep • Source of ideas for story improv The rulebook of the Plot Unfolded Machine is recommended to enjoy the most of this app, particularly If you never practiced this hobby before.

Obsidian is a free, locally-stored Markdown note-taking application that the TTRPG community has widely adopted as a campaign wiki, session planner, and lore database. Originally designed as a personal knowledge management tool, it stores everything as plain text files on your own machine with no subscription required. Description Unlike purpose-built platforms such as World Anvil, Obsidian was not designed with TTRPGs in mind, which means it arrives without templates, stat block support, or any TTRPG-specific structure out of the box. GMs who want those features need to install and configure community plugins themselves, which carries a steeper setup cost than dedicated alternatives. For those comfortable with that process, however, the result is a highly customizable system with no ongoing fees and no vendor lock-in. A thriving plugin ecosystem has filled most of the gaps, and the tool has become a genuine alternative to subscription-based worldbuilding platforms for technically comfortable Game Masters. The plugin ecosystem extends well beyond what is listed here, with community tools covering everything from database-style note querying and cross-device sync to interactive maps and combat automation. A full directory is available at community plugins.

A new kind of toolkit for any RPG and GM. Import a rulebook or build your own RPG, and RPGadget fills every tool for you. NPCs and monsters arrive with full stats and lore. Adventures become flowchart storyboards. Players make their characters on their phones before the session starts. Everything you need is in one place, so you can focus on your players instead of hunting for page numbers.

Session Forge is an offline game master toolkit for fantasy tabletop RPGs, made by Donald Stelling of Digital Underground. Instead of another long PDF, it is a single HTML hub that the GM opens in a web browser and uses at the table to prepare and run sessions. It holds 14 tools: encounters, NPCs, loot, initiative, session notes, dungeons, taverns, quests, rumors, villains, weather and travel, settlements, a one-click one-shot outline, and a short GM playbook. Tools for running the table - Encounter Forge builds fights on an XP budget set by party level, party size and difficulty (Easy to Deadly). Each encounter comes with a motive and a twist, and the creatures are drawn from 198 original 5e-style stat lines. - Initiative Tracker handles HP, AC, conditions, group adds and d20 rolls. Rounds and turn order save automatically, so combat survives closing the browser. Fights made in Encounter Forge can be sent straight into the tracker. - Session Notes saves as the GM types, offers random sparks for quick ideas, and keeps a full archive that can be restored. - GM Playbook explains how to use the tools live without slowing the game down. Generators - Full Session: a one-click one-shot outline with a hook, NPCs, a villain, a journey, two fights, a site, treasure and a twist. - NPC Generator: 8 naming cultures, plus role, voice, quirk, secret and adventure hook, and a "crowd of six" mode. - Loot Tables: common to very rare items, plus gems, art objects and 64 curses. - Taverns & Shops: taverns and shops with priced wares. - Dungeon Builder: dungeons of 3 to 12 rooms, with a boss scaled to the party. - Quest Hooks, Villain Forge and Settlements. - Rumor Mill: rumors with a GM-only truth rating. - Weather & Travel: 6 climates and 4 seasons. On every generator, the GM can lock a line and reroll the rest, go back through a saved history of the last 20 rolls, copy results as text or Markdown, download them as .md or .txt, and send them to Session Notes in one click. Seeds are repeatable, so the same seed always gives the same result. How it works The GM downloads a ZIP, opens index.html and bookmarks it for game night. After that one download, Session Forge runs fully offline with no account. Data is saved in the browser, and the home page has backup and restore. It works in a browser on desktop and on mobile. Systems and fit The stats are 5e-flavored so they feel familiar, and the content is easy to reskin for OSR games, Pathfinder or homebrew settings. All generator content is original; it is not a dump of official rulebook text. Session Forge suits GMs running 5e-compatible fantasy, one-shots and west-marches campaigns, and GMs who improvise and need ideas fast. It is not a virtual tabletop plugin: it runs locally in the browser and does not connect to Foundry VTT or Roll20. Price and license Session Forge is a one-time purchase from CAD$14.99 (pay what you want above that) on Gumroad. The license is personal, single-GM use. Version 2 raised the toolkit from 6 tools to 14, and earlier buyers get v2 free by downloading again; their v1 saves carry over.

Turn your table into a hacker movie. GM Terminal Kit lets you build a fake retro computer, with files, passwords, email, programs, alarms and glitches, then hand the keyboard to your players. It's one file that runs in your browser, even offline. Originally designed to be a prop for TTRPG's, Murder Mystery Parties or other in person events, GM Terminal Kit has gone on to adopt a number of features which can make for an entertaining terminal-based standalone game. What you can build - Clues hidden in files and folders, password locks, files that self-destruct - Accounts with mail that arrives mid-game - Events: when players read a file or type a phrase, new mail appears, a character starts typing, or a countdown begins -Sound effects and a robotic voice, made right in the browser -Screen glitch, shake and flash -12 looks, including 80s green CRT, DOS PC, military teletype and cyberpunk -Questions with branching answers -Animated GIFs that play as ASCII art -An event map that shows how it all connects, and Run now to test any script -Export for players: one file you can send, with locked content encrypted Comes with Kestrel Station, a short sample game that shows off every feature. Pay what you want. Want to see how a full game is put together? For $2 you also get the Thornfield Terminal source: the complete scenario to open in the kit, plus a walkthrough. Play Thornfield free on this page. If you make something with it, a credit is always appreciated: Made with GM Terminal Kit by RomanSerius. Thornfield Terminal A guest login to a research lab's computer, 1989. A friendly message from someone called Pan. Evidence that needs to get out. Read files, crack passwords, dig up deleted mail, and decide who to trust. Short, with two endings. Turn your sound on. Your progress saves in your browser. Made with GM Terminal Kit, free to download, so you can build your own. Want to see how Thornfield works inside? The source is $2 on the kit's page. Please let me know if you find any glitches or have any questions!

Margo is a browser-based AI brainstorming tool for original characters, backstories, personalities and short story ideas. For tabletop players and GMs, it can help explore possible histories, motives, relationships and scene starting points for original RPG characters and NPCs. A user supplies a character or premise and chooses the kind of idea to explore. The resulting directions are material to select, revise and adapt to the table's setting. Its backstory and personality tools can support character preparation when a player has a rough concept but wants alternatives for how that person became who they are or might react under pressure. Margo also serves fandom and original-fiction writers. Generated suggestions need human review for consistency, accuracy and suitability, especially when using an established setting. It does not verify game rules or canon, and it is not a virtual tabletop or character-sheet system. The product offers a one-time signup allowance of 50 Sparks, valid for 7 days. Continued use is available through paid monthly plans or one-time Spark packs. Current prices and conditions are on its pricing page.

TokenCraft is a powerful Windows-based RPG token creation and customization software developed by Map Alchemists. Designed for Game Masters, tabletop RPG players, and virtual tabletop enthusiasts, TokenCraft allows users to create highly detailed, personalized tokens for Dungeons & Dragons, Pathfinder, Roll20, Foundry VTT, and other tabletop gaming platforms. The software offers extensive customization possibilities, allowing users to combine portraits, decorative frames, visual elements, and backgrounds to create unique character, NPC, monster, and creature tokens. TokenCraft provides a dedicated creative environment for building professional-looking RPG tokens, whether for fantasy adventures, modern campaigns, or other tabletop settings. Available as a one-time purchase with no subscription required, TokenCraft also supports additional content through optional expansion packs.

HeroLog is a multifunctional, cross-platform application designed for tabletop RPG players and Game Masters. The app offers a wide range of tools to make role-playing games easier to manage, more organized, and more immersive. HeroLog is designed to be an all-in-one RPG companion, bringing multiple useful tools together in a single application.