I'm in!
I'll be joining LD39, not too long after also playing in LD38.
I'm not sure which toolset I'm going to use yet, it depends on what idea I end up going with. Either Monogame or WPF, probably. Whichever one I think will be easiest to build the idea I come up with.
As for tools, I'll be using Visual Studio, Photoshop, Audacity, maybe Ableton if I get around to music (not too familiar with it though). I'll also be streaming the process on Twitch
Good luck to all the entrants :)