Unity - The multiplatform game creation tools for everyone.
CSS Scan - Instantly check or copy computed CSS from any element for only ~95$
Godot Engine - Feature-packed 2D and 3D open source game engine.
Hoverify - All-in-one browser extension to improve your web dev experience.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
CSS Grab n' Go Editor - Visual editor for learning and quick CSS mocking