I recently picked up, and played through,
The Case of the Golden Idol: A fun little sleuthing adventure where you have to pick out clues from the environment and then piece together a narrative for what happened.
It's not particularly difficult, save for some of the later levels which lean a bit on the opaque (or in the case of the DLCs, ridiculously wordy) and for the mostpart you spend the lion's share of your time just putting names to faces. But there are some legitimately clever clues and hints in some of the puzzles that you really need to be paying attention in order to put together, and the art style is unique in a way which you'll find either deeply endearing or quite repulsive (I'm firmly in the first camp, at least for the main game... The DLCs go a little bit wibbly).
You might consider the price a bit steep for something that's over and done with in under 9 hours (and that's WITH both DLCs, which both take a while), but it's quite a special little thing and I highly recommend checking out the free demo if nothing else. The demo also just so happens to contain one of my favorite scenes from the whole game, so there's that.
A word about the DLCs, however... While they definitely do have their own merits and I don't regret purchasing and playing them, there are some notable shifts in narrative, theme, and even puzzle structure. The finale of the second DLC is actually somewhat notorious, and while I still managed to get through without using the game's help/hint system, I did just brute-force my way through some of the composition thanks to the game's "two or fewer fields are incorrect on this page" notice.
I'm also just generally not as big a fan of the story in the DLCs as I was for the main campaign, and while the end of the second DLC ties neatly into the beginning of the campaign, I'm... Not entirely sure I appreciate that canon