I Mostly make games for Game Jams.
Most of my stuff is rough, dirty and not very pretty, but I try. I've entered several Ludum Dares and Mini Ludum Dares, as well as several Jams on itch.io. I've made games in a week, a weekend and in an evening. I've made games with artificial restrictions, such as memory and resolution or terrible controls.
All of these were made by me alone. Though I may also use free assets (Either from the Unity asset store, or from the wonderful Kenney)