Documentation

Installation Playing levels Controls Settings Troubleshooting Avatar and movement Damage and lives Determinism Bots Statistics Help and bug reports Launch arguments Sandbox and tutorial Profile transfer Achievements Skins Performance rating

Level editor

Getting started

What a level is Your first level: the route How the editor works Frames, time and the length of a level Keyframes and easing

Resources

What a level needs Preparing the track Images and fonts The level folder and backups

Rights

Licensing: the essentials in three minutes Two ways to a legal resource Where to get resources The resource record Readiness to publish Asking an author for permission

Craft

Readability and fairness Rhythm and structure Difficulty and the curve Composition and the camera Colour, themes and post-processing Themes Pictures from shapes

Working in the editor

The order of work Reuse: prefabs, copying, generators Speed and shortcuts Not losing your work How a bot plays your level How to share a level by hand AI assistant

Performance

Level budget Mobile devices

Reference

Glossary Metadata and sharing a level Timelines Hierarchy and clipboard Object properties Effects Audio Generators Modifiers Level settings Level resources Prefab Mode Export and protection Editor settings Panels Library and collections Publishing Video export

SDK

Installation Level format Blob format Archives and protection Versioning and migrations Validation Publish profiles Writing a generator Contributing to the SDK

Servers

Connecting to a server Server for friends Public server and extending it

Changelog

gv 1.3.0 gv 1.2.0 gv 1.1.0 gv 1.0.0 gv 0.16.2 gv 0.16.1 gv 0.16.0 gv 0.15.0 gv 0.14.1 gv 0.14.0 gv 0.13.3 gv 0.13.2 gv 0.13.1 gv 0.13.0 gv 0.12.0 gv 0.11.2 gv 0.11.1 gv 0.10.1 gv 0.10.0 gv 0.9.0 gv 0.8.0 gv 0.7.0 gv 0.6.3 gv 0.6.2 gv 0.6.1 gv 0.6.0 gv 0.5.5 gv 0.5.4 gv 0.5.3 gv 0.5.2 gv 0.5.1 gv 0.4.1 gv 0.3.4 gv 0.3.3 gv 0.3.2 gv 0.3.1 gv 0.3.0 gv 0.1.0 gv 0.0.2 gv 0.0.1 gv 0.0.0

What a level is Your first level: the route How the editor works Frames, time and the length of a level Keyframes and easing

Resources

What a level needs Preparing the track Images and fonts The level folder and backups

Rights

Licensing: the essentials in three minutes Two ways to a legal resource Where to get resources The resource record Readiness to publish Asking an author for permission

Craft

Readability and fairness Rhythm and structure Difficulty and the curve Composition and the camera Colour, themes and post-processing Themes Pictures from shapes

Working in the editor

The order of work Reuse: prefabs, copying, generators Speed and shortcuts Not losing your work How a bot plays your level How to share a level by hand AI assistant

Performance

Level budget Mobile devices

Reference

SDK

Installation Level format Blob format Archives and protection Versioning and migrations Validation Publish profiles Writing a generator Contributing to the SDK

Servers

Connecting to a server Server for friends Public server and extending it

Changelog

FAQ

Documentation
SDK

Developer Level author

SDK

The SDK is the Bullet Hero level format as an open C# library. The game reads and writes levels through it, and your program can do the same

Start here - Installation

Updated October 1, 2026Edit on GitHub

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