Open Saga League
A living world of one-shots and campaigns. Find a session, bring your character, and forge your saga.
New to the OSL?
Getting started is fast. Four steps and you're rolling dice.
Create an Account
Sign in through the OSL platform. Your name, email, and Discord username are pulled from your profile automatically.
Forge a Character
Choose your game system (D&D 5e or OSE), build or upload your character sheet, and submit for automated compliance review.
Set Your Availability
Tell us when you can play and which game systems interest you. This feeds our community heat map so we schedule games when people can actually show up.
Set Availability →Join a Session
Browse open sessions, pick one that matches your character's tier and game system, and register your seat at the table.
Games in the Making
GMs are gauging interest. See something you like?
Official Playtest- Last Stand at Derelict Omega
Survival cosmic horror like you have never played before!
Genre: Sci-Fi Survival Horror
Level Range: 6-7
A monstrous derelict drifts before you—a broken hulk of metal and shadows, surrounded by the lifeless blue of a distant world. As you near, an alien heart tears itself free from the dying hiveship, tendrils lashing out and attaching to the hulk like a massive tick. In its death throes, it sets the void upon you.
Last Stand at Derelict Omega violently shifts the genre, thrusting your fantasy heroes into the cold, claustrophobic corridors of a drifting space station. The station is dead, but it is not empty. You are hunted by the infested remains of the crew, malfunctioning security drones, and the horrifying results of biological experiments gone wrong.
Join DM Juggy for an official playtest prior to release, and get credit in the book. Pregens available but not necessary
Darkness in Genzacon
For LeMar- A Gooey Delve into the Faerfell. For Characters Level 7-10
OS Series- Eye, Heart and Fate of Chentoufi
Journey to the Blighted Lands of Okkorim in this epic Trilogy by Gygax & Everhart!
Based in Luke Gygax's World of Okkorim, the OS Series is a trilogy of short adventures. We would run all 3 successively for an immersive, short-term campaign.
Eons past, the World of Okkorim was crisscrossed with waterways and rich with flora and fauna. It was a land replete with resources, but one culture prospered more than others. Through the systematic conquest and assimilation of neighboring peoples and their lands, the Empire of the Ydrissid [ee-DRIH-sihd] was born.
While the Empire’s might was unequaled, they nevertheless succumbed to their own greed and power-hungry nature. Centuries have now passed and the Ydrissid are long gone, but their relics, artifacts, and treasure remain for those brave enough to venture into the BLIGHTED LANDS™ of Okkorim!
Featuring Games From
For Players
- → Register a character using the 4-step wizard
- → Upload your PDF sheet — auto-extracted instantly
- → Wait for automated verification (10–15 seconds)
- → Join open sessions that match your tier
- → Manage your roster at My Characters
For Game Masters
- → Requires GM or Admin role from an administrator
- → Schedule single, multi-date, or recurring sessions
- → Set tier, game system, platform, and player limit
- → Edit or delete your sessions at any time
- → Update status: Open → Full → Completed → Cancelled
Quick Rules Overview
Full Rules →Tier System
Key Rules
- •All official WotC D&D 5e content is allowed. Balanced 3rd-party content is permitted.
- •Multiclassing is fully legal — no restrictions on class combinations.
- •Feats are optional. A character with no feats is completely valid.
- •Your ability score sum cannot exceed 72 + (ASIs received × 2) + 4.
- •HP is calculated using the max-die formula. Exceeding it is an auto-fail.
- •Magic item limits apply per tier (see full rules for the table).
- •Characters must match the tier of the session they register for.
- •Level mismatch between your sheet and selected tier is an immediate auto-fail.
Open Sessions
View All →
Curse of the Chupacabra 19.15 start GMT +1
Suitable for new players and existing Dungeons & Dragons 5e/5.5e. The sun-drenched shores and dense jungles of Isla Zardia hold secrets that demand a drawn blade and a sharp mind. Across the island, strange livestock deaths have escalated into a grisly pattern, leaving hollow husks drained of blood. As the vibrant Wilkakuti festival brings the port town of Santego to life, this unseen menace prepares to strike from the shadows. You must track a cunning, pack-hunting terror through wild swamplands, ancient ruins, and perilous highlands. Every choice you make shapes the fate of the island, turning a simple beast hunt into a desperate battle for survival against an evolving myth. Gather at the table every other Sunday for a masterful tabletop journey taking your characters from level 1 through 6, guided by the renowned GM Vijay . Celebrated for breathing vibrant life into every non-player character and painting the world with vivid, imaginative descriptions, Vijay crafts a deeply immersive narrative where, your choices carry profound emotional weight. Step into a living, breathing world where the spirit of the game thrives on imagination and heart. Will you stand as the steadfast shield of Santego, or will the terrifying curse of the Chupacabra claim you all?
Thunderground
Climb inside a steam-powered battle vehicle and head out into the wilds of the frontier in this campaign of adventure on the lowlands. You are a captain, a driver, or one of the gunners in a large tracked vehicle, criss-crossing the prairies and sparse forests, defending a world reborn from the ashes of the fall of dragons. The rise of industrialization in the great metropolis drives an army of elves against the surviving native humanoid races of the far north in a struggle of life and death.
Frequently Asked Questions
Official Documents
Player Guide
Account setup, character registration wizard, joining sessions, and managing your roster.
Download PDF →GM Guide
How to schedule sessions, field-by-field form guide, schedule modes, and session management.
Download PDF →Character Rules
Allowed content, tier system, ability score limits, HP rules, magic item limits, and verification statuses.
Download PDF →