Here are some things I've been working on:
I design music packs that replace the music in A Link to the Past, particularly in ALttP Randomizer.
SNEKMAZE is a cellular automaton, a simulation of a snake in a maze that changes as the snake moves. I built it in PICO-8 and found myself surprised by how chaotic it could be, despite that there's no randomness in it.
I've developed a speedrun route for Napple Tale, a cute Japanese RPG-platformer for the Dreamcast that contains some of my favorite music in existence.
My Napple Tale page links to some resources about the game and a speedrun guide written by my friend randomsalience.
Do you play a lot of Crypt of the Necrodancer: Amplified? Do you think you can handle any mode of the game?
I thought that too until I made the Wheel of Necrodancy to pick random modes for me, and oh heck there are some difficult modes in this game.