Godot is a popular open-source game engine that has been in continuous development since 2014. I started using the engine around 2023 to develop my own games, and soon found myself contributing features and bug fixes. The contributions I've made include:

• New editor features
  • Add warning in scene tree when nested CanvasItems try to clip children (#98949)
  • Add "Mute Game" toggle in Game view (#99555)
  • Add "Pack Project as ZIP..." to Project menu (#99781)
  • Add UID upgrade tool (#102071)
  • Allow opening a project in verbose mode from the Project Manager (#103875)
  • Add dropdown to Movie Maker button in editor run bar to access settings (#106231)
  • Allow Quick Open dialog to preview change in scene (#106947)
  • Visualize MarginContainer margins when selected (#111095)
  • Depict version discrepancies in Project Manager (#111528)
  • Add "Show in File Manager" button to sidebar of Project Manager (#111624)
  • Use monospaced font for code names (methods, signals, properties) in UI (#112219)
  • Add dedicated icon for Quick Load (#112999)
  • Collapse groups in animation track editor (#113479)
• New APIs and engine features
  • Add `Tween.tween_subtween` method for nesting tweens within each other (#98660)
  • Add `volume_linear` property and getter/setter methods for audio-related classes (#99268)
• Bug fixes and minor improvements
  • Replace default deadzone magic number with named constant and fix InputEventJoypadMotion::set_axis_value unresponsiveness (#99135)
  • Ignore `__MACOSX` directory for export template and project ZIPs (#99947)
  • Update the app bundle's access and modified times to match the build time on macOS (#102003)
  • Display correct symbol in warning when unique name is used without @onready annotation (#102389)
  • Hide slider for array size selector in editor (#102392)
  • Support more controllers on macOS 11+ (#104619)
  • Add specific errors for use of keywords removed in Godot 4 (#104636)
  • Make reusable functions for GameController joystick and trigger input (#104725)
  • Fix Apple's incorrect mapping of Joy-Con (L) and Joy-Con (R) face buttons (#104726)
  • Fix a few GDScript warning messages for grammar and consistency (#104729)
  • Describe "Fuzzy Search" in Quick Open tooltip (#107108)
  • Stop killed/invalid subtween (#107690)
  • Use one-based line numbers for external text editors (#107816)
  • Propagate Tween.kill() to subtweens (#108227)
  • Add error message to Quick Open dialog if callback is invalid (#112559)
  • Stop drawing of MarginContainer margins if not in tree (#112687)
  • Use American spelling of "favorite" in Project Manager code for consistency (#112787)
  • Add note to error message about how to add recognized extensions to editor (#114045)
  • Fix wording in TileSet collision polygon error message (#114385)
  • Provide default values for fold state in "Edit Animation Libraries" window to prevent errors (#116295)
• Documentation improvements
  • Fix incorrect text in ResourceImporterWAV description (#93497)
  • Change "sample" to "stream" in AudioStreamWav documentation (#93499)
  • Remove incorrect statement about TextureButton normal texture (#95660)
  • Improve `Tween.set_ease` and `Tween.set_trans` documentation (#98689)
  • Update docs for `Tween.stop` to clarify behavior (#98787)
  • Add note to `CanvasItem.clip_children` about nesting (#98948)
  • Improve description of fuzzy matching in editor settings documentation (#107368)

Note: I do not own Godot Engine. I am just one of many contributors. The Godot Engine logo is licensed under the Creative Commons Attribution 4.0 International license.