A downloadable game for Windows

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Trapped in a deteriorating world of mystery, you must navigate a series of challenges and deadly puzzles while in pursuit of a mysterious figure that always seems to be one step ahead. Can you outwit this prison of shadows and survive long enough to find an answer to the madness? Or, will you fail and be consumed by the darkness?


Vile Matter is a psychological/horror adventure game that combines the challenges of the classic puzzle adventure with the fully interactive gameplay of the First-Person genre, taking gameplay beyond the typical point-and-click.

Along the way, you will need to explore the environment and search for clues to help you to navigate the world, all while pursuing a mysterious character that always seems to be one step ahead. 

Vile Matter puts the game back in adventure game by giving the player full control over their character as they solve fully interactive 3D puzzles and navigate their way through a handful of unique set pieces that put the player on the edge of their seat and bring this mysterious world to life. 


  • Thought Provoking Puzzles
  • Horror/Thriller Elements
  • Intriguing Story
  • Tense Action Gameplay
  • Unique Set Pieces
  • Physics-Based Gameplay

Recommended Specs:

  • Windows 10 
  • x64-based PC
  • Processor: Intel(R) Core(™) i7-7700 CPU @ 3.60GHz Mhz, 4 Core(s), 8 Logical Processor(s)
  • RAM: 16.0GB

Minimum Tested Specs:

  • Windows 10
  • x64-based PC
  • Processor: Intel(R) Core(™) i3-6100U CPU @ 2.30GHz, 2301 Mhz, 2 Core(s), 4 Logical Processor(s)
  • RAM: 8.0 GB

Vile Matter was a solo project that was developed over four months. This was my first project and I hope that you enjoy the experience as much as I did making it. Honest feedback is always appreciated. Thank you for checking out the game!

LETS PLAYERS: You have full permission to stream this game but please leave a link to any videos in the comments. I need as much feedback as I can get and seeing the game in action will help me make even better games going forward. Plus, I would love to share your hard work on our social media!

Follow Decoy Software: 

Twitter: https://twitter.com/decoysoftware

Patreon: https://www.patreon.com/decoysoftware

Twitch: https://www.twitch.tv/decoysoftware

YouTube: https://www.youtube.com/channel/UCG4uTQi5dPg0IL5G6JPzyxw?

Instagram: https://www.instagram.com/decoygames/

Facebook: https://www.facebook.com/DecoySoftware/


Download NowName your own price

Click download now to get access to the following files:

VileMatter_v1.0 1,019 MB

Development log


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Welcome back Spectators and Dev,

I have been waiting many months for this game to come out and I must say that it was well worth the wait.

I don't want to give anything away so I will say this, it is absolutely stunning. The visuals are beautiful as is the audio. It takes you on a strange journey of puzzling moments and fear fueled joyrides as you make your way to the top of the mountain.

Development team, I know I am a goofball in my vids, as I was in this one but truly, from a long time gamer, fantastic job. The last couple of minutes of the vid are just for you. I hope you enjoy my take on your creation.

Have fun Spectators . . .

L Squared