bevyengine/bevy

A refreshingly simple data-driven game engine built in Rust

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Summary Information

Updated 17 minutes ago
Added to GitGenius on August 31st, 2026
Created on January 18th, 2020
Open Issues & Pull Requests: 3,457 (-8)
GitHub issues: Enabled
Number of forks: 4,795
Total Stargazers: 47,981 (-1)
Total Subscribers: 314 (+0)

Repository Insights (GitGenius)

Median issue/PR response: 9.1 hours
Mean response time: 31.9 days
90th percentile: 48.3 days
Tracked items: 3,741

Most active contributors

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How this project is maintained

Around half of the issues opened in the past year never receive a reply. 80% of open issues come from outside the core team, so the backlog reflects real-world use rather than internal planning. Work labelled "S-Needs-Design" is answered fastest, typically in about 5 hours, while "D-Straightforward" waits about 28 hours. 64% of tracked open issues have had no activity in three months, so the open count overstates what is actively being worked. Only 3% of issues opened in the past year have been closed.

Charts & Analytics

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Issue Activity (beta)

Open issues: 1,900
New in 7 days: 26
Closed in 7 days: 12
Avg open age: 547 days
Stale 30+ days: 1,682
Stale 90+ days: 1,456

Recent activity

Opened in 7 days: 25
Closed in 7 days: 12
Comments in 7 days: 6
Events in 7 days: 29

Top labels

  • C-Bug (2,002)
  • S-Ready-For-Implementation (1,341)
  • A-Rendering (1,206)
  • C-Feature (1,046)
  • A-ECS (803)
  • D-Straightforward (682)
  • S-Needs-Design (648)
  • S-Needs-Investigation (598)

Detailed Description

Bevy is a data-driven game engine built in Rust that emphasizes simplicity and modularity for both 2D and 3D game development.

The engine solves the problem of creating games with a modern, approachable architecture by adopting an Entity Component System paradigm. This data-oriented design allows developers to structure game logic around composable components rather than deep inheritance hierarchies, making it easier to reason about and modify game behavior. The engine prioritizes fast compilation times and parallel execution of application logic to reduce iteration friction during development.

Bevy suits developers comfortable with Rust who want a lightweight, modular foundation they can extend or replace as needed. It works well for projects where you value compile speed and architectural flexibility over stability guarantees. The engine is still in early development stages with sparse documentation, and the API receives breaking changes approximately every three months, so it is best suited for teams willing to maintain migrations and adapt to evolving APIs. The project requires staying close to the latest stable Rust release due to its reliance on recent language and compiler improvements.

Development activity shows a mature community infrastructure with official Discord, Reddit, and GitHub Discussions channels for support and collaboration. The project maintains a dedicated contributor's guide and encourages both simple issue fixes and complex architectural discussions through GitHub Discussions. Migration guides are provided alongside breaking changes to help users adapt between releases. The team publishes a development blog covering progress, plans, and new features to keep the community informed of direction and upcoming work.