Continuing this in the same thread as it’s a bit topical:
Are you a fan of Love Live! School Idol? Me neither! I basically knew nothing about it at all. Regardless, Gyakuten Live is an incredibly detailed cutesy Ace Attorney style game, in which the characters of the show gather for “school trials”. Though you may need to put up with a cutesier all-girl cast, and the stakes are much lighter and involve things like stolen possessions rather than murder, the mysteries end up having a surprising number of twists and even some heartfelt motives at the end. Features a fully custom soundtrack and LOTS of custom artwork, matched with some traditionally silly Ace Attorney humor.
So far, THREE cases are available, and each features a different prosecutor. The game’s page lists plans to continue up to 6 episodes.
In ItchIO’s standard, the game is “name your own price” - so you can choose to download it for free. It’s unlikely to come to Steam since it technically infringes on an anime/manga without permission.
One more coming if my AA recommendations are well received.