GURPS Calculator

AD&D Toolkit is a collection of tools for Dungeon Masters that integrates seamlessly with digital Character Sheets. It is not a VTT.  Its a digital assistant for DMs and Players.  It greatly enhances both in-person and online play by speeding up and automating the more interesting, yet cumbersome mechanics of AD&D. Toolkit supports First Edition(1e), Unearthed Arcana(1e), and Second Edition(2e). Community Across multiple platforms, our membership numbers in the thousands.  If you haven't yet, you need to check it out.  The Discord serves as the community hub as well as offering support for the Toolkit.  It serves as a valuable resource for people new to AD&D or Toolkit. Blog The AD&D Toolkit blog serves as a resource to the public for both Toolkit and AD&D in general.

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.

Shadow of the Demon Lord is a grim dark-fantasy tabletop roleplaying game set during the last, doomed years before an apocalypse, designed by Robert J. Schwalb and published by his own studio, Schwalb Entertainment, in 2015 following a Kickstarter campaign.  It builds a d20-based system deliberately stripped of the modifier-stacking common to games in its weight class, replacing most situational bonuses and penalties with a single abstracted mechanic. Schwalb later returned to the same core system for a lighter, more traditional-fantasy spinoff, Shadow of the Weird Wizard, released via Kickstarter in 2023. Description Characters begin as ordinary commoners rather than destined heroes, in a world where the Demon Lord's return is already underway and survival - not glory - is the realistic goal of most adventures. The Game Master (GM) runs a setting that leans hard into body horror, corruption, and creeping dread, and the game states its demands plainly.  Characters can and do die, sanity can crack under the weight of what they witness, and doing what's necessary to survive can leave a permanent, mechanical stain on a character's soul. It's built for a table that wants D&D-adjacent fantasy combat without D&D's heroic framing - closer in spirit to grimdark fiction than epic fantasy, with character death treated as a real and fairly common outcome rather than an exception.

The Dungeon Dive is a YouTube channel, podcast, and online community hosted by Daniel, dedicated to solo analog gaming with a primary focus on fantasy, science fiction, dungeon crawlers, and solo tabletop roleplaying games. Solo Board Games & Dungeon Crawlers: Detailed coverage of tile-laying dungeon crawlers, boss battlers, and adventure board games ranging from quick-playing titles like Mini Rogue and 2D6 Dungeon to heavy thematic games like Dungeon Degenerates and Hellboy: The Board Game. Solo TTRPGs & Toolkits: Deep dives into pen-and-paper solo roleplaying, hex crawls, game master emulators (oracles), and game engines such as Scarlet Heroes, Four Against Darkness, and Mörk Borg solo supplements. Game Design & Mechanical Discussions: Essays and discussion videos covering topics like reducing tedious combat in solo games, game minimalism, and re-evaluating older titles over time. Links youtube.com - Youtube channel dungeondive.quest - The Dungeon Dive discussion forum spotify.com - Spotify feed patreon.com - Support the creator

Rollful is a hosted dice-rolling API. It rolls dice over HTTP: a request carries a formula, and Rollful parses it, rolls each die through a cryptographically secure generator, and returns every die it rolled rather than only the total. It is not tied to any game system. It knows what 4d6kh3 means and nothing about what the caller uses it for, so it suits a virtual tabletop, a character sheet, a Discord bot, or anything else that needs a roll it can show the working for. The formula grammar covers flat modifiers, advantage and disadvantage, keeping the highest or lowest dice, exploding and penetrating dice, multipliers, several terms in one roll, and tags. The response lists every die with a flag saying which ones counted, so an interface can show the die a keep rule dropped instead of hiding it. A GET request handles a plain formula. POST adds bonuses and tags, and a batch endpoint takes up to 20 rolls in one request. Every response and error has the same documented shape, described by an OpenAPI 3.1 document. There is no account and no API key. Usage is rate limited rather than metered. The homepage carries a form for rolling dice straight from the browser. Rollful is powered by the OpenDice npm package, which is free to use directly in any JavaScript or TypeScript project.