This Week in Bevy

What happened this week in the Bevy Engine ecosystem

Links

0.16.0-rc.2, Breakout on Game Boy Advance, and bevy_ecs for static sites

2025-03-31

With the 0.16 release candidate upon us, the merges this week are more focused on solidifying the release candidate than introducing big new features, which is great as we approach 0.16's stable release.

Bevy 0.16.0-rc.2 is out now. Check out the rc.1 to rc.2 commits or the full 0.15.3 to 0.16 changeset.

The Better Release Notes working group and 0.16 Release Gang are improving the release process with a release content tagging workflow and a helpful guide to migration guides.

Error handling gains more improvements in #18454 and #18553 replaces the "App" default window title with the current_exe.

Required Components

The require syntax for Required Components was reworked in #18555 to better align with what people expect when using Rust.

#[derive(Component)]
#[require(
    A, // this will use A::default()
    B(1), // inline tuple-struct value
    C { value: 1 }, // inline named-struct value
    D::Variant, // inline enum variant
    E::SOME_CONST, // inline associated const
    F::new(1), // inline constructor
    G = returns_g(), // an expression that returns G
    H = SomethingElse::new(), // expression returns SomethingElse, where SomethingElse: Into<H> 
)]
struct Foo;

Tracy Support

tracy output

Tracy is a real time, nanosecond resolution, remote telemetry, hybrid frame and sampling profiler. #18490 builds on top of the existing render diagnostics recording to also upload gpu timestamps to tracy.

WESL on Wasm

If you're looking forward to playing with the new WESL on wasm, some fixes landed in #18591 which should make it into the next release candidate.

Alice's Merge Train is a maintainer-level view into active PRs and how the Bevy sausage is made.

Showcase

Bevy work from the #showcase channel in Discord and around the internet. Use hashtag #bevyengine.

a bevy

A bevy in Bevy

showcase

A bevy of birds in a Bevy game

bevy skein

bevy_ecs + Leptos

showcase

This is the initial release of the documentation site for Skein, built as a static site using bevy_ecs for the data model and Leptos with Islands mode as the render engine. The generator is Cinnog

Visit
color theme

Color Themes

showcase

bevy_ui powered color themes including a classic dark mode live-switching in-game.

breakout on gba

Breakout: Game Boy Advance

showcase

Bevy's breakout example ported to the Game Boy Advance, using the now published bevy_mod_gba.

unhaunter

Unhaunter

showcase

Unhaunter is an Open Source game about paranormal investigation and ghosts. It runs on Windows, Linux, and in the browser.

Releases are posted to GitHub

exit 3a: on pbs

Exit 3A: on PBS

showcase

Exit 3A developer Mike Ramirez was interviewed about the game on their local PBS station.

Visit
orbital tactics

Orbital Tactics

showcase

Orbital Tactics is a space shooter with orbital mechanics where you defend Earth in a gunship. The torpedoes use a model-predictive controller that picks the thrust direction that minimizes time-to-target under limited propellant. Playable on Itch.io

simulo

Simulo

showcase

Simulo is a multiplayer physics sandbox with Lua scripting that currently supports Box2d (with Rapier coming soon). Its available to wishlist on Steam.

Visit
nodegraph scripting

Nodegraph Scripting

showcase

The goal of this demo is to take advantage of Bevy's reflection infrastructure for functions and values and use that to create node graphs that will run as systems. This would support modding and scripting usecases.

GitHub

Crates

New releases to crates.io and substantial updates to existing projects

Bevy Lint Laundry Day

crate_release

Bevy Lint Laundry Day is a thread in a similar style to Alice's Merge Train, focused on Bevy's Linter: bevy_lint

bevy_mod_scripting 0.11.0

crate_release

bevy_mod_scripting is an initial attempt to enable scripting within Bevy's existing framework. To compliment dynamic systems introduced in the previous updates, scripts can now register their own, fully legit Bevy components.

GitHub

bevy_spacetimedb

crate_release

bevy_spacetime is an integration between Bevy and SpacetimeDB, which recently hit 1.0.

GitHub
No devlogs this week
No Educational this week
Pull Requests Merged This Week
Contributing

Want to contribute to Bevy?

Here you can find two types of potential contribution: Pull Requests that might need review and Issues that might need to be worked on.

How do I contribute?

Pull Requests Opened this week

Issues Opened this week