Isometric Game Art Pack - Extensive library of game art for indie devs
Tabbied - Doodle with generated patterns
Indie Boost - A video game discovery software used by Publishers, Press, YouTubers, and Streamers.
Isometric Love - Cute isometric objects for designers
Isometric - Create beautiful, abstract works of art & optical illusions
OpenGameArt.org - A site dedicated to sharing artwork & other assets for game development.