Not sure if this would count, but whodunnit in Oblivion was by far my favourite. A murder mystery that you created.

Otherwise, the mystery of Comstock in Bioshock Infinite or finding out who killed Rosaria in Dark Souls III (even though it was pretty obvious)

Xenoblade Chronicles X the blood lobster side quest. A simple fetch quest that turns out to have major impacts and links to all the major side quests in the game.

This is a minor example, but one that still sticks in my head to this day. It's the second case in The Testament of Sherlock Holmes (https://www.gog.com/game/testament_of_sherlock_holmes_the), in which you are investigating a crime scene in where a bishop was tied to a chair, tortured, and murdered. After examining the crime scene and gathering evidence, you can put together a theory of what happened to see if your theory fits.

Ultimately there is one correct answer which you will eventually arrive at, but the gameplay really made me feel like Sherlock Holmes with his deductive powers. It was different from the usual point-and-click mystery games I'd played before. It actually made me think about deduction and putting together a plausible theory based on evidence.

I would say it was the hunting down the Werewolf Serial killer in L.A. Noire

When I noticed the second case was similar to the first one I started thinking maybe this is all related. You start paying more attention and at one point you notice that there is no single piece of concrete evidence that links the two prime suspects to the murder.

Then as it goes deeper you start questioning yourself, then at the end you finally nail the son of a bitch only for the LAPD to cover it all up because the serial killer was actually related to very powerful unnamed US politician.

The one that immediately leaps to mind is "The Sunry Case" from Knights of the Old Republic, especially how messy the actual evidence gathering and trial can be, and that swinging the case one way or the other comes down to how your budding space wizard presents that evidence, disturbingly. That messiness and uncertainty made it feel more honest than a lot of stuff set in the real world.

Helps that the world it takes place on, Manaan, is probably my favorite of the Old Republic settings, which in a similar vein to Bespin's Cloud City, has a bright, beautiful exterior hiding bad stuff underneath. Was also nice I could take some time out from evidence grinding to improve my swoop race times (assuming my qualifying time wasn't too good... the real mystery in that game is why they made it so you had to improve incrementally on your qualifying time even if you got it near perfect. Nearly wrecked my controller!).

I'm in for the giveaway contest.

I'm surprised of all the entries of this contest not one mention Broken Sword. The game is amazing from beginning to end. The world is beautiful, the NPCs are interesting to talk to and the story progress very well. Ironically it was the main character that's so bland and boring (maybe he's a blank state so we can put ourselves in his shoes?) and the romance doesn't feel right (to be fair a lot of people suck at writing romance). Also the beginning was pretty bombastic (pun intended) and caught our interest immediately. There's too many adventure games started so slow people lost interest very fast. Also even when the plot went into the fantastic concept based on Incan culture but the story flow so well it doesn't feel forced.

The game is surprisingly underrated, even when it was pretty popular back then. I felt that the last installment of the game really destroyed the franchise with it moving to 3D.

I didn't expect what really happened to Lazarski's son in >Observer_.
That was one of the most memorable cases in games for me :)

L.A. Noire's "The Red Lipstick Murder"

I fondly remember Bigby in "The Wolf Among Us" and the "Donkey Skin" murder case.

Fallout New Vegas Spoilers




The quest return to sender from FNV sticks in my mind as a memorable case because of what occurs after you confront the culprit. Chief Hanlon is quite a sympathetic character and the speech he does over the tannoy is very sad to listen to.

Impromptu mystery!

In the game Torin's Passage there is an unnerving slowed down voice track inserted into the musical score during one sequence.
Unfortunately I did not have a means of recording the game so...
In order to find out what this meant I had to find a playthrough, find the sequence, record the video, transfer the files into editing software, edit out any other sounds and dialogue, isolate the clip, reverse it and eventually make it twice as fast to understand the secret message no one had ever bothered to discover for all these years!
"This sentence is a waste of your time"

Son of a b**tch.
Thanks Al Lowe.

There are several games with good mysteries that were memorable to me and a lot of them have been mentioned before in previous posts - the original Gabriel Knight game, a couple of the Broken Sword games, the original Max Payne, Life is Strange, Heavy Rain, Murdered: Soul Suspect, LA Noire... it's hard to pick the MOST memorable one. I think Gabriel Knight was an excellent game for the time when it was originally released.

To be honest the best criminal case is in Chrono Trigger. The court scene was a classic. How the different actions you do earlier in the game affect the case outcome was genius.

I remember playing games way back in the day (can't fully remember the name) but it was a police game. Plus Broken Sword in which I liked to solve things.

I learnt from playing Thief Gold who swiped Lord Bafford's precious scepter.

It was me.