dragondisco.com

What It Is

Dragon Disco is a free, browser-based encounter builder aimed primarily at tabletop RPG game masters, especially for D&D 5e scenarios. It lets you add player characters, companions, NPCs, and monsters, then calculates XP thresholds and encounter difficulty—such as Low, Moderate, and High—in real time based on the 2024 encounter math. It also supports saving, importing, and exporting encounters as JSON. Its positioning is closer to a tabletop workflow tool than a general-purpose software development tool.

Core Features and Integrations

Feature-wise, it covers encounter building, a monster database, weighted random encounter tables, character archiving, initiative command generation, and combat state synchronization. The monster library supports manual entry as well as imports from JSON, CSV, or Google Sheet. Fields include CR, type, size, HP, source, statblock, image, and token ID, and the data can be used for autocomplete and quick lookup.

Avrae integration is one of its highlights: by default, you can copy initiative commands, and you can also configure an Avrae API Token to automatically sync encounter data through UVARs. Together with a Workshop alias, this enables starting combat with a single command, advancing turns, and manually syncing when needed. For Owlbear Rodeo, Dragon Disco provides a custom extension manifest that can sync tokens and combat information to the map, including HP, initiative, conditions, and effects.

Pricing and Data Model

Dragon Disco is explicitly free to use, with development supported by voluntary donations via Ko-fi or Buy Me a Coffee. It does not require a server-side account or login. Encounters, settings, and databases are mainly stored in the browser’s LocalStorage/IndexedDB, so users need to back up their data themselves via import and export. Its privacy notes are relatively transparent: the Avrae Token is stored only locally, but is sent to avrae.io during sync; features involving Owlbear, Google Sheets, Dicecloud, D&D Beyond, and image proxies communicate with third-party services.

Pros and Cons

The strengths are that it is free, requires no registration, uses open import/export formats, and is tightly integrated with real-world Avrae, Discord-based play, and Owlbear Rodeo workflows. The documentation includes getting started guides, integration instructions, security notes, and troubleshooting, which is enough to help users get up and running.

The downsides are that automatic sync configuration is somewhat complex, especially because obtaining an Avrae Token requires using the browser developer tools. Cross-device sync is less convenient than with cloud-based products. There is also no clear information about open source availability, self-hosting, or a public SDK.

Who It’s For and Access from China

Dragon Disco is well suited to D&D 5e DMs who already use Avrae, Owlbear Rodeo, and Google Sheets to manage campaign materials. It is also a good fit for users who want their data to stay local and do not want to register an account. The source text does not provide information on access from mainland China, and some capabilities depend on external services such as avrae.io, owlbear.rodeo, Google APIs, and D&D Beyond, so actual usability may vary depending on the network environment. Alternatives to consider include Kobold Plus Fight Club, D&D Beyond Encounter Builder, Improved Initiative, or simply using Owlbear Rodeo/Avrae’s native workflow.