www.getpaint.net/
A free image editor and painting program available for Windows.
Pretty sure everything is indie on itch.io but just in case you want something extra indie.
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Games that can be played alone
Projects tagged with the following aliases will automatically show up on this page:
single-player
Explore games made with Paint.net tagged Indie and Singleplayer on itch.io · Upload your games made with Paint.net to itch.io to have them show up here.
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