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External Apps
Open the arcade to community-built apps.
External Apps turns compatible AtGames devices into a launchpad for community games, utilities, and custom experiences built for the arcade screen.
Apps
Games, tools, launchers, and community experiments
SDK
Templates, manifests, packaging notes, and release docs
Arcade
Built around compatible Legends device experiences
Platform story
More than a download. A new surface for arcade creativity.
External Apps gives players a richer cabinet experience and gives developers a practical starting point for bringing their own ideas to AtGames hardware.
Community-powered play
Give players a path to install arcade-ready games, tools, and experiments created outside the built-in catalog.
A clearer path to installable apps
The SDK preview gives developers a project shape, manifest guidance, and packaging notes for compatible devices.
Designed for cabinet experiences
External apps can be shaped around large displays, arcade controls, living-room sessions, and quick launch behavior.
For builders
A practical SDK path for arcade-native ideas.
The SDK is designed to help developers move from concept to installable package with fewer unknowns. It gives community creators a starting point for apps that feel at home on Legends arcade devices.
Start with predictable app metadata instead of inventing a package format from scratch.
Prepare arcade-first flows for launch, controls, presentation, and release notes.
Give community projects a cleaner path from experiment to shareable build.
Step 1
Build
Start from the SDK templates, wire up your app metadata, and target the arcade experience from day one.
Step 2
Package
Use the included examples as a reference for preparing an installable external app bundle.
Step 3
Share
Prepare community-ready apps, games, tools, and prototypes for compatible AtGames devices.
SDK preview
Download the starter kit after signing in.
The current archive is a placeholder while the final SDK package is prepared. The download flow, changelog, and legal acceptance are already wired so the real archive can replace it cleanly.
- Sample manifest files for app metadata and launch configuration.
- A placeholder starter project structure while the production SDK package is finalized.
- Documentation stubs for packaging, compatibility, and release notes.
- A Next.js-hosted download flow with legal acceptance and signed-in access.
Developer kit
External Apps SDK Preview
Archiveatgames-external-apps-sdk-preview.zip
Latest version0.1.0-preview
AccessSign in required
Changelog
SDK release notes
External Apps SDK
0.1.0-preview - 2026-06-19
Added
- Added the first placeholder SDK archive for testing the authenticated download flow.
- Added a starter changelog file so SDK updates can be published from Markdown.
- Added preview documentation covering package structure, manifest fields, and readiness checks.
Notes
- This archive is intentionally temporary and should be replaced with the production SDK package.
- Preview materials can change before public release.