Golden Sun: The Lost Age with some added quality of life features for a more fun replay. Battles remain the same as the original game, but updates have made in the overworld to ease backtracking, puzzle solving, and inventory management
Pokemon Elite Redux has a strong focus on increased difficulty and variety in teambuilding. It features up to 4 abilities at the same time while every single Pokemon & Trainer has been rebalanced manually. There are tons of QoL enhancements and zero grinding. It features over 100 new abilities and some new moves for more variety. It's inspired by hacks like Inclement Emerald, Radical Red, but it's unique in the sense of 4 abilities, tons of QoL mixed with manually-created Trainers.