Screenshots
Watch trailer on Steam ↗Who Killed Mr X
ENDAI · Published by ENDAI
Content notice: This game contains implied scenes of violence, images suggesting murder, and blood. Major themes include assassination, serial killers, kidnapping, claustrophobia, etc., all set within a dark, graphical world. There are also allusions to alcohol and drugs.
Last updated 18 Sept 2026
You wake up locked up in an unknown place with 8 strangers. Who are these people ? Why are you here ? You have a bad feeling. But suddenly, the phone rings, and it's up to you : Will you dare answer and go deeper in this mysterious plot ? Will you reveal the horrible truth... and survive it ?
Indie, RPG · 2026 · More free games
About this game
Who Killed Mr. X is a graphic novel featuring colorful characters in a mysterious and surprising story reminiscent of Agatha Christie, Saw, and Zero Escape : 999.
Make your own choices and solve puzzles to find the end of the story and reveal the truth.
STORY:
Two months after a strange incident you never talked about, you wake up in a small, dimly lit room furnished only with a telephone and a television. But you're not alone... You discover that eight other people are locked inside with you.
Who are these people? What are you doing here? No one has any answers. Fear and anger rise, when suddenly... the phone rings.
The choice is yours now : Will you dare answer and plunge into the dark heart of this mystery?
Will you be able to uncover the terrible truth... and survive it ?
FEATURES:
A rich and complex storyline that you'll have to unravel like a true detective.
A dark thriller atmosphere reminiscent of SAW, Zero Escape: 999, and Agatha Christie.
Graphic novel.
Original Cluedo-like visual style.
Multiple choices and multiple endings.
As you make your choices, unlock hidden clues that will help you understand the story and unmask a serial killer.
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10
- Processor: 1.66 Ghz
- Memory: 1 GB RAM
- Storage: 300 MB available space
Supported Languages
Latest news
AnnouncementsOfficial
Who Killed Mr X Demo in October Steam NeoFest !
Hi everyone ! And by everyone I mean "especially you" ! Yeah, you, among the ones who have, so far, wishlisted WKMX. First of all, thanks to all of you for your support. The game has reached about a hundred wishlists at this moment, and even though this number could sound a bit ridiculous for some, it is a light of hope at the end of the tunnel for me.Slowly but surely, the game resists to the shadows of oblivion that lurks around any (almost) solo new unknown dev's indie game. It's been almost one year since I started this project, and it was from zero. No network, no community, no other past projects, no professional experiences, no company etc... I've learned a few things in this past year, had some fails (with my crowdfunding campaign for instance) and it is clear that the most difficult moment is right now. Before the game is finally out. And i'm really eager to show you the result ! That's why i'm glad to announce WKMX participation to the next Steam Neo Fest in October ! A demo will be available at this very moment, and if everything goes well I can also say that the game's release will follow the end of the Neo Fest ! Until that moment, I'll do my best to share with you the game's advancement, especially on Instagram at endai.games. Also I updated (at last) the screenshots on the Steam page, so you can have a better peek at the actual design and gameplay. I have to say I hate spoilers and really likes to surprise or be surprised, that's why I tried to show you enough crispy stuffs but not to much. I spent a lot of time writing this story and my humble goal is just to blow your mind with it the day you play it ;) Before finishing with post I must say thanks to my family for supporting me and bringing me here so far. Thanks to my bro for helping me (a lot) with the game's code. The game wouldn't be the same (maybe wouldn't be here) without them. And of course, thanks again to you who's reading this post, waiting to try the game ! Katanights from ENDAIRead full article on Community Announcements (Katanights)
