gatewayrpg
GATEWAY RPG: The Free, Rules-Lite, Universal d20 Tabletop Roleplaying Game
GATEWAY RPG is a free, rules-lite d20 framework system for speed, simplicity, and total creative freedom. Engineered with a streamlined d20 core inspired by 5th Edition, GATEWAY reimagines familiar mechanics into a fast, flexible, and unique system all its own.
Whether you are introducing friends to their first session or running a high-octane one-shot for seasoned veteran players, GATEWAY gets you playing in minutes, not hours. From neon-soaked Cyberpunk streets to grit-filled Noir alleys, if you can imagine it, GATEWAY can run it.
Open AI Disclosure:The Definitive Edition of Gateway RPG and Adventure Supplements feature AI-generated artwork and layout assistance. The rules were still hand written and human proofread/playtested since 2017. As a one-man passion project with a $0 budget, and a $0 revenue gain from this game, those products utilizes AI imagery to provide a visually richer and cohesive experience while keeping the game entirely FREE. 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 listed below.
Choose Your Version
- Classic Edition Rulebook (2017): The original 2017 release with its original hand-made and stock artwork. 100% written, proofread, and playtested by humans, no AI involved. Still free on its own page. (English/Español)
- Definitive Edition Rulebook (2026): The current, complete GATEWAY RPG enhanced with some AI artwork. Core rules, solo play engine, bestiary, and homebrew variants, all in one volume. This is the cinematic Epic Art edition, with full-color illustrations throughout. (English/Español)
- Android/Chomebook Player Companion App: The official digital companion. Full offline rulebook, interactive character sheets, and solo oracles, plus an integrated dice roller for players and GMs. Zero ads, zero distractions.
Grab an Adventure (NEW for Halloween)
- HOLLOW HARVEST: The Barrowfield Bargain (One Shot Adventure) - A free fantasy folk-horror one-shot for GATEWAY and other tabletop rpg's. The harvest is rich. The scarecrows are watching.
DEAD SIGNAL: The Meridian Incident (One Shot Adventure) - A free space-horror one-shot for GATEWAY or other tabletop rpg's. Answer the distress call. Don't trust the silence.
SATANIC PANIC: The Last Session (One Shot Adventure) - A free 80's teen horror one-shot for GATEWAY or other tabletop rpg's. In 1986 they said the game was satanic. In Fox Hollow, they were right.
GATEWAY RPG is a Not-For-Profit game. It will always Free. Enjoy!
