If it's mystery games, I'm a huge Ace Attorney fan so I would definitely recommend the Phoenix Wright trilogy. Since it goes by courtroom drama style, there's a real back and forth in how the mystery proceeds, making for some of the most solid characterization out there. The Miles Edgeworth games and the Apollo Justice trilogy proceeding it were not written by the original writer, Shu Takumi (sans the first Apollo Justice game but he wasn't allowed to write freely and had the producers under his neck), so the quality is hit or miss compared to the first trilogy, relying more on grandiosity over intrigue. But they're solid mystery games by their own right. The Great Ace Attorney duology is written by Shu Takumi however, and is much truer to form to the original trilogy, and features himbo Sherlock Holmes who kinda comes off as a dumbass but is the best character in the game. It's also set in 19th century London if you wanted something out of Syd Craft that it just didn't offer.
As for Syd Craft... Well, putting it in a way, the first case in an Ace Attorney game is usually the easiest one and many times would just outright show the killer in the opening cinematic. That's because they want to ease players into the game's mechanics. Syd Craft is currently on its 'first case' and doesn't want to overwhelm its target demographic this early on.
I can't fault 22i for making things way too obvious and easy. Jump hasn't really had a successful mystery series in a while, so it's volatile grounds for serialization. There's no way to know if a hard mystery series has any wings to take off. But there have been many successful fanservice harem series, so better stick to his guns, y'know? I feel like it was necessary to toe the line close to a gag manga this early on to establish some form of following and safety net, before proceeding towards more robust storylines. And I think the simple mysteries 22i brought out are just the tip of the iceberg. When positions are solid and there's not much expectations of cancellations, I can see something more intricate being made further down the line. Right now is just not the time given how volatile running a series in Jump can be within the first 20 chapters. I'm waiting for it. But he's feeding me with pics of Lulu's butt so I'm sated at the moment. I want a case like Murder On The Orient Express. Real classic mystery that fits the conventions and stylings of Syd Craft.
4 years later, Syd Craft would end serialization without ever doing a proper five chapter long whodunnit. And Dongus would eat his words.
