SuchArt: Genius Artist Simulator (2022)

Choose Creative mode and start by putting a few colours on a canvas, without making the story's commissions your measure of success. Paint mixes and spreads like a material, so a stray mark can become another layer or an entirely different experiment. The built-in brushes and unusual tools give you plenty to try. Mouse-and-keyboard play is the intended starting point, and sharing your work is optional.