Narrantium

One Realm is an AI-assisted campaign workspace and virtual tabletop built for groups that want to play tomorrow—not spend the week preparing. It turns adventures, source material, and campaign notes into an organized, playable world, helping GMs complete work that might otherwise take hours or days in a matter of minutes. Characters, locations, encounters, maps, relationships, and story events are automatically organized and connected. From there, the GM can prepare scenes, create artwork, manage characters, and run the game through the integrated virtual tabletop. Because everything shares the same campaign context, preparation flows directly into play without rebuilding the session across multiple tools.

Hedron is a one-stop shop for everything TTRPG. Design and play entirely new TTRPGs, build robust worlds for your home games, and connect with your community – sharing your lore, worldbuilding, homebrew, and other creations! Links projecthedron.com - Official website discord.gg - Discord server reddit.com - Hedron subreddit

Roll20 is the most widely used browser based virtual tabletop in the world, launched in 2012 following a successful Kickstarter campaign. Developed by Riley Miller, Nolan T. Jones, and Richard Zayas, it was designed to break down the barriers to tabletop gaming by requiring zero installation and offering a robust free to play tier. It remains the industry leader in total user base, hosting millions of games across nearly every imaginable tabletop system. Description Roll20 is the "everyman" of virtual tabletops, prioritizing accessibility and ease of use. Because it runs entirely in the cloud, players and Game Masters can start a session in seconds from any modern web browser. It features an integrated marketplace where users can purchase official rulebooks, adventures, and art packs that integrate directly into their campaigns. While it offers advanced features like dynamic lighting, its primary appeal is its massive community and the simplicity of its "pick up and play" nature. System Overview & Key Features No Installation Required Unlike many of its competitors, Roll20 requires no software downloads or server configuration. The Game Master simply creates a room on the website and shares a link. This makes it the ideal choice for groups with varying levels of technical expertise. Integrated Character Sheets Roll20 features thousands of community and official character sheets that handle the math for you. Clicking an attribute or a weapon on your sheet automatically sends the roll to the chat window, applying modifiers and calculating critical hits instantly. The Roll20 Marketplace The platform boasts the largest digital storefront in the industry. You can buy modules for D&D, Pathfinder, Call of Cthulhu, and more, which come pre loaded with maps, tokens, and journals, drastically reducing a Game Master's preparation time. Dynamic Lighting and Layering Subscribers gain access to a powerful lighting system that restricts what players can see based on their character's line of sight. The Game Master can easily manage different layers for maps, tokens, and hidden notes that only they can see. Built in Video and Voice Roll20 includes its own integrated WebRTC video and voice chat system, allowing groups to see and hear each other without needing to run third party software like Discord alongside their game window. Jumpgate Technology Introduced in 2024 and 2025, the "Jumpgate" update overhauled the core engine to provide a much smoother, high performance experience. It improved frame rates, reduced loading times, and modernized the interface to compete with newer, hardware accelerated platforms. Additional links roll20.net - Official Roll20 website and Virtual Tabletop marketplace.roll20.net - Official Roll20 Marketplace for assets and modules

Scarlet Heroes is an old-school tabletop role-playing game designed by Kevin Crawford and published by Sine Nomine Publishing in 2014. Built on the chassis of early fantasy role-playing games, it is explicitly engineered to support "duet" play (one Game Master and one player) or completely un-GMed solo play. The system functions both as a standalone game and as a mechanical conversion overlay, allowing a single player character to survive and conquer classic modules written for a full party of four to six adventurers without any structural modifications to the adventure itself. Description The default setting for Scarlet Heroes is the Red Tide, a dark, sword-and-sorcery fantasy world where the remnants of humanity have fled to an isolated archipelago known as the Sunset Isles to escape a world-devouring crimson mist. In this setting, players choose from traditional fantasy heritages and step into classic archetypes: the Fighter, Cleric, Thief, or Magic-User. However, the true focus of the ruleset is its revolutionary math-rebalancing engine. Traditional early-edition fantasy games are notoriously lethal for solo characters due to the "action economy" favoring groups of monsters. Scarlet Heroes alters how standard numbers are interpreted, transforming a single baseline character into a legendary epic hero who can cleave through hordes of lesser foes while preserving the danger of boss monsters. Links sine-nomine-publishing.myshopify.com - Official website drivethrurpg.com - Drive Thru RPG shop page

Shadowdark RPG is a modern masterpiece of old school fantasy tabletop gaming, created by Kelsey Dionne and published by The Arcane Library in 2023. It blends the lethal, dungeon crawling spirit of the Old School Renaissance with streamlined, modernized mechanics inspired by the fifth edition of Dungeons & Dragons. Description In Shadowdark, players are adventurers delving into tombs and ancient underground cities in search of gold and glory. The game is highly lethal, emphasizing player skill, resource management and creative problem solving over character sheet abilities. The dark is a physical, terrifying presence and making sure keeping the light on, is beyond vital to survival. System Overview & Key Features Real Time Torches Torches last exactly one hour of real time. The Game Master sets a physical timer at the table. When the timer runs out, the light goes out, and the characters are plunged into total darkness where deadly monsters thrive. Familiar d20 Mechanics The core system uses a standard 20 sided die (d20) with advantage and disadvantage, making it incredibly easy for modern players to pick up. However, modifiers are kept extremely low to maintain a grounded feel. Randomized Character Growth Instead of picking from a massive list of feats or skills when leveling up, players roll a random talent on their class table. This speeds up character creation and forces players to adapt to the unique strengths of their adventurer. Slot Based Inventory Encumbrance is simple and strict. Characters have a number of inventory slots equal to their Strength score or a minimum of ten. Every item, from a sword to a torch, takes up exactly one slot, making resource management important. Additional links thearcanelibrary.com/pages/shadowdark - Official The Arcane Library website shadowdarklings.net - Shadowdarklings (An excellent online character creator)

The Medieval Fantasy City Generator (MFCG) is a highly influential, browser based procedural tool created by the developer watabou. Since its debut in 2017, it has become the gold standard for "instant" urban cartography, capable of generating complex, aesthetic city layouts in a single click. In late 2025 and early 2026, the tool received significant updates to its District View and Building Placement algorithms, allowing for more organic street flow and higher density urban "slums" that better reflect historical medieval layouts. Description The Medieval Fantasy City Generator is a "toy" in the best sense of the word—a lightweight, highly customizable application that prioritizes "cool looking" maps over strict geographical simulation. It uses Voronoi diagrams to partition space into districts, then fills them with procedurally generated buildings, walls, and landmarks. Because it runs entirely in HTML5, it requires no installation and is a favorite for GMs who need to generate a "capital city" or "coastal port" on the fly during a live session. System Overview & Key Features One Click Generation Pressing a single key (Enter) generates a completely new city with unique geography. The tool automatically decides where the castle, the temple, and the market square go, providing an instant foundation for a Game Master to build their narrative upon. Procedural District Mapping The 2026 version features an improved "Alleys and Blocks" view. Cities are divided into logical districts—like the Craftsmans Quarter or the Shanty Town—each with its own architectural density and procedurally generated name that can be edited by the user. Dynamic Warp Tool GMs can manually reshape the city by "warping" its boundaries. If you need a city that is long and thin to fit a specific riverbank, or a circular fortress atop a hill, the warp tool allows you to push and pull the city's footprint while the buildings rearrange themselves in real time. 3D City Viewer Integration By exporting a city as a JSON file, users can open their map in the companion City Viewer app. This transforms the 2D layout into a fully navigable 3D environment, perfect for showing players the "skyline" of the city they are about to enter. SVG and JSON Export Maps can be exported as high quality SVG files, allowing them to be opened in programs like Illustrator or Inkscape for further artistic customization. The JSON export ensures full compatibility with other "Procgen Arcana" tools and major VTTs like Foundry. Azgaar's Integration The generator is natively linked to Azgaar's Fantasy Map Generator. When a user clicks on a city in a world map, it can automatically trigger the Medieval Fantasy City Generator to build that specific town, creating a seamless "World to Street" experience. Additional links watabou.itch.io/medieval-fantasy-city-generator - Official application page watabou.github.io - The full "Procgen Arcana" suite of generators patreon.com/watabou - Official Patreon for supporting the developer