I've been developing software for 27 years now. I did some minor game development when I was a teenager (releasing my first game at 17), but most of my adult life has been spent on non-game development. I've been focusing a lot of energy on game development for the past 5 years or so. Nothing notable released to date, but I've done my share of game jams. I typically do the August Ludum Dare, but since they shifted things around, I was able to make time for the GMTK jam this year.
For this jam I decided to make a tower defense game where you can only have one weapon defending your towers at a time. I think it turned out really well. I haven't received much feedback on it yet, so I don't know how challenging it is.
Here's a link to my game for anyone interested (browser playable): https://jharler.itch.io/singular-defense