Kevin MacLeodopen in new window — a full-time composer who has published over 2000 compositions, most of which are made available for others to use using the Creative Commons by Attribution 3.0 license.
Design Oriented Topic Wheelopen in new window — A huge glossary on gamedev topics made in an interesting interactive way. Make sure to disable DarkReader or other "dark theme" extensions in your browser to actually see the definitions!
Figmaopen in new window — though it is a prototyping and UI design tool, it has powerful capabilities for vector and is great for illustrations and cartoony game sprites. CoMiGo's go-to graphics tool. Works in a browser and as a desktop app.