The Labyrinth RPG

Get your table playing in minutes, not hours.   GATEWAY RPG is a free, rules-lite d20 system built for zero-prep adventures, sudden one-shots, and seamless intro sessions. Familiar 5E-style mechanics with all the bloat stripped out, so you can run any genre instantly: neon-soaked cyberpunk streets, grit-filled noir alleys, high fantasy, cosmic horror, and everything in between. The Definitive Edition is now the main book. This is the complete, current version of GATEWAY RPG: updated core rules, solo play, a starter bestiary, and homebrew variants, character sheets all combined into one source. New artwork, professional layout, and everything players and GMs need in a single 132 page PDF. Want the history? Every older version of the rulebook, spanning 2017 to 2026, is bundled in the Legacy Zip below for collectors and the curious. Download the complete PDF bundle. AI Disclosure: This Enhanced Edition of Gateway RPG features some AI-generated artwork and layout assistance. The rules were still hand written by me and human proofread/playtested since 2017. As a one-man passion project with $0 budget, and $0 revenue gain from this game, this edition utilizes AI imagery only to provide a visually richer and cohesive experience while keeping the game entirely FREE. The original Classic Edition from 2017, featuring human-created artwork, is included as a bonus in the download files. However, if you are only looking for a gaming experience completely free of AI-generated assets, the standalone Classic Edition can be found exclusively on its own dedicated product page at https://gatewayrpg.itch.io/gateway-rpg-classic-edition. What’s Inside? Definitive Edition (Main Book): The complete game in one volume. Updated rules, solo play engine, starter bestiary, and homebrew variants. Legacy Zipfile (2017-2026): Every prior version of the rulebook, character sheet, supplement preserved as released. For archivists, returning players, and anyone who wants to see how the game evolved. Core Rules: The streamlined engine for players and Game Masters, in both English and Spanish (Reglas en Español). Character Sheets: Multiple Printable and Form Fillable Character Sheets Ready-to-Play Content: Pregenerated characters and one-shot adventure modules spanning multiple genres. Jump straight into the action. Player's Toolkit: Printable and form-fillable character sheets, a one-page quick reference guide, and the d20 Oracle for solo play. Starter Bestiary: 25 adversaries across 11 settings, from High Fantasy to Space Opera to Lovecraftian Horror. Homebrew Variants: Over 20 pages of optional mechanics, including Spark of Heroism (Inspiration), Pushing for Success (partial success), and genre modifiers for Survival and Cosmic Horror. Pocket Character Sheets: Compact sheets designed for portability. Solo Play Quickstart Zine: A portable, zine-style guide for on-the-go solo adventures. NEW: Android Player Companion App Character Builder: Create custom characters or select from 30 curated pre-mades. Pocket Rules: Quickly search core mechanics and references on the fly. Sheet-Integrated Dice: Roll checks directly from your sheet. Solo Engine: Built-in oracle for quick, on-the-go solo adventures. https://play.google.com/store/apps/details?id=com.aistudio.gatewayrpg.app Designer's Note: GATEWAY RPG grew out of a personal passion for tabletop gaming. Back in 2015, I discovered S. John Ross’s classic 1993 game, Risus: The Anything RPG. It was free, modular, ultra-flexible, and simple to pick up, but as I played more TTRPG's like DND5e, I missed the iconic d20 and the drama of critical hits and misses. I created GATEWAY RPG to capture that same beginner-friendly spirit while bringing back the thrill of the twenty-sided die and being able to use it for any setting. Whether you are running quick one-shots, playing standalone adventures, diving into solo sessions, or modularly introducing advanced rules as your group learns, GATEWAY adapts seamlessly to your table. GATEWAY RPG and Aurican's Lair are a Not-For-Profit Tabletop Roleplaying Game publisher.

Dungeons & Dragons 5.5E (commonly called the "2024 rules" or "D&D 2024") is the revised and updated version of the Dungeons & Dragons 5th Edition tabletop roleplaying game, published by Wizards of the Coast. Released across three core rulebooks throughout 2024 and early 2025, it is not a new edition. It is the same game, refined. The revision was driven by a decade of player feedback and data on how tables actually run 5E, and it shipped to coincide with the game's 50th anniversary. The three revised core books are the Player's Handbook (September 2024), the Dungeon Master's Guide (November 2024), and the Monster Manual (February 2025). All three are reorganized, reworded for clarity, and mechanically updated. Rather than replacing 5th Edition with a "6th Edition," 5.5E expands and tightens the existing framework while maintaining backwards compatibility with every 5E adventure module, sourcebook, and campaign setting published since 2014. If you are new to D&D entirely, start with the Dungeons & Dragons 5e (2014) entry for a full explanation of how the game works. Everything described there still applies here. This entry covers what 5.5E specifically changed. Description D&D 5.5E plays identically to 5th Edition at the table. Players create adventurers, one player takes on the role of the Dungeon Master (DM), and the group tells a collaborative story driven by a twenty-sided die (d20) and the DM's rulings. The core loop, the "Three Pillars" of Combat, Exploration, and Social Interaction, and the fundamental mechanics (Advantage and Disadvantage, Bounded Accuracy, the Proficiency Bonus, the rest system) all carry over unchanged. What the 2024 revision addresses is the rough edges that a decade of play exposed. Martial classes (Fighters, Barbarians, Monks, Rogues) now have more tactical options in combat instead of repeating the same basic attack every turn. Spellcasting classes have been rebalanced to reduce the gap between low-level and high-level power. Rules that were famously unclear or frequently house-ruled (grappling, crafting, surprise, two-weapon fighting) have been rewritten. The Dungeon Master's Guide, long criticized as poorly organized, has been restructured into a book that new DMs can actually learn from rather than only reference. The result is a game that feels the same at the table but runs more smoothly. Groups that have been playing 5E for years will notice the quality-of-life improvements. Groups starting fresh will simply have a cleaner ruleset from day one. Both 2014 and 2024 material can be used at the same table without conversion, though the newer rules are recommended for new characters.

Dungeons & Dragons 5th Edition (D&D 5E) is a heroic fantasy tabletop roleplaying game published by Wizards of the Coast. Released in 2014, it is the edition that brought D&D from a niche hobby into mainstream pop culture - showing up in TV shows, podcasts, and actual-play streams, and introducing millions of new players to the hobby for the first time. 5E was designed after a massive public playtest ("D&D Next") with the explicit goal of being approachable to newcomers while still satisfying veteran players. The Basic Rules are free, and a game can start with nothing more than those rules, some friends, and a set of dice (or a digital dice roller app). In 2024 the core rules received a significant revision, now commonly referred to as Dungeons & Dragons 5.5E (2024). Both versions are fully compatible and most groups mix material freely. The system it directly evolved from is Dungeons & Dragons 4E (2008) Description In D&D 5E, players create fantasy adventurers (a half-orc barbarian, an elven wizard, a tiefling rogue) and one player takes on the role of the Dungeon Master (DM). The DM builds and describes the world, voices the non-player characters (NPCs), controls the monsters, and acts as both the lead storyteller and the rules referee. There is no board. The game is a conversation: the DM describes a scene, the players say what their characters do, and the dice decide what happens when the outcome is uncertain. A typical session runs three to four hours with a group of three to six players plus the DM. The game describes itself as resting on "Three Pillars": Combat, Exploration, and Social Interaction. A single session might include all three, from tracking a monster through the wilderness and negotiating with a shady merchant to fighting a troll at the entrance to a cave. Combat is the most mechanically detailed of the three and tends to take up the largest share of table time, though groups are free to lean as hard into roleplaying or exploration as they like. The default assumption is a high-fantasy world filled with magic, monsters, and ancient ruins. The flagship published setting is the Forgotten Realms, but Wizards of the Coast has released adventures across a range of worlds, and many DMs create their own. The game does not ship a single canon story. Every table's story is different, shaped by what the players do. 5E is designed to be approachable. The core philosophy is "rulings over rules," meaning that when something comes up that the rules do not explicitly cover, the DM is encouraged to make a quick call and keep the game moving rather than stopping to look things up. The rules reward creativity and improvisation, and the system explicitly expects that no one at the table has memorized the entire rulebook. That said, the DM carries most of the preparation work between sessions: building encounters, preparing maps, and keeping the story moving. Players can show up with nothing but their character sheet and a set of dice.

Forge Steel is a community-developed, locally-hosted web application and digital utility designed for Draw Steel, the cinematic fantasy tabletop role-playing game created by MCDM Productions. Developed by independent community members during the game's playtest phase, the application functions as a lightweight encounter builder and combat manager. It is specifically built to assist Directors in organizing game data and tracking real-time combat statistics during a session. Description Forge Steel serves as a digital toolkit for preparing and executing combat encounters in Draw Steel. In contrast to cloud-based alternatives, Forge Steel relies on local browser storage. This means the application does not require users to create an account or rely on external servers to save their data. All created encounters, customized monsters, and campaign notes are stored directly within the cache of the user's web browser. This architecture prioritizes data privacy, offline accessibility, and fast load times, though it requires manual file exporting to transfer data between different devices.

A free, accessible, browser-based character creator and editable sheet for Mongoose Traveller 2022 — every roll cited, every choice logged, every character saved locally. Description Traveller Lifepath is a free, browser-based character creator and editable sheet for Mongoose Traveller 2022. It walks players through the full Mongoose 2022 lifepath — basics and species, characteristics, background skills, pre-career education (University, Army Academy, Marine Academy, Navy Academy), career terms with their full survival / event / commission / advancement loop, mustering-out, the post-creation skill package, and a final reviewable character sheet — without ever leaving a single browser tab.                                                              The tool offers three ways to set characteristics. Players who want the classic experience can have the site roll 2D × 6 into a pool and assign each value to whichever stat they like. Players who prefer their own physical dice can enter results manually; the site still tracks every DM, target, success/failure, and aging effect. Players who'd rather skip randomness entirely can use the included point-buy method (42-point budget, 2..12 per stat). PSI is rolled separately when psionics are enabled, and the Psion career unlocks accordingly.  /images/general-media/1778159165_rhvJ8xSn.png The character-creation rules are implemented as a typed effects engine — TypeScript discriminated unions with exhaustive switching — so every rule lives in one place and can be tested in isolation. The project ships with around 360 automated tests covering qualification, commission, advancement, aging crises, mishaps, life events, connections, the skill cap of 3 × (INT + EDU), pre-career education, and the Mongoose 2022 errata clarifications for Vargr and the Vacc Suit skill. A full audit trail of every rolled die, every applied DM, and every player choice is captured to a roll log that updates in real time. The post-creation sheet is a fully editable Mongoose-style character record. Skills, careers, equipment, weapons, armour, augments, connections, benefits, and free-form notes can all be edited inline; values save automatically to localStorage with cross-tab synchronisation, and the sheet is print-friendly (one panel per printed page, ink-friendly styling). Every character in the local library can be exported and re-imported as JSON for backup or for handing off between players.                                                      Two visual themes are included: a light "Little Black Books" look in the spirit of Classic Traveller, and a dark "Imperial" theme — plus a System mode that follows the operating system's light/dark preference and reacts live when it changes. Theme choice is remembered between sessions.                                                                    Accessibility is treated as a first-class concern. The interface meets WCAG 2.1 AA contrast requirements in both themes (verified by an axe-core audit suite that runs as part of the project's tooling), every interactive element has a visible keyboard focus indicator, icon-only buttons carry ARIA labels, and the layout includes a skip-to-content link for screen-reader users.            /images/general-media/1778159170_sbkOfhno.png Other features include undo across the wizard (rewinds to the relevant picker after popping a character snapshot), URL-based debug logging (?debug=1), the Connections rule for shared PC backgrounds, an aging-crisis path with medical-debt accumulation, and an honest "unofficial fan tool" disclaimer in every place it matters.                            The project is open-source under the MIT License, runs entirely client-side with no backend and no account requirement, and uses privacy-friendly analytics (no cookies). Bug reports, rules questions, and pull requests are welcome on GitHub. Links bytesbynelson.github.io - Live tool github.com - Source code github.com - Issue tracker / feedback

City of Jerry takes the Mischief engine and hacks it for an Osmosis Jones-style microscopic action adventure inside the human body guaranteed to delight (and occasionally gross out) your table! Take on the role of a White Blood Cell, Neuron, Muscle Cell, Vaccine, or Painkiller, fight pathogens, solve mysteries, and keep your city (and host body), Jerry, safe.