Just what I've found so far. Thirty Moons is THE definitive EqG continuation fic, about the Mane Six swapping places with the HuMane Six for thirty (full) moons. Worth it just for the Button Mash-O-Vision scene, which I will not spoil. Numbers was a kick in the gut for Fathers Day, about Filthy Rich dealing with the fact that his little angel Diamond Tiara was... well, never a little angel. Poly in D Minor is smut. Excellent, well written, affectionate, hot as hell smut, about Neon Light's invitation to become the third point of Vinyl and Tavi's would-be triad. Friendship is Giant Robots is a Mature-rated AU that fuses FiM with Bliss Stage, the origin of my username. Nightmare Moon is inflicting the enchanted sleep of the Bliss on all Equestria, and it's only with untested mecha formed from weaponized love and friendship that the Mane Six, led by Celestia, can strike back. Mystara's Little Ponies straight up places Equestria in the Dungeons and Dragons campaign world Mystara - turning it into something like what would happen if the late Gary Gygax had told his niece, "Of course you can play a unicorn in your campaign, sweetheart." It's surprisingly comedic and a galloping romping adventure.