OCTAHEDRON is a precision vertical action game about creating your own platforms.

Ascend and escape strange subterranean world Veetragoul, and experience an otherworldly psychedelic adventure. To conquer and master each of the handcrafted levels, you must get into the flow of the pumping, atmospheric soundtrack, as enemies and traps move along with the rhythm.

Discover new obstacles, adversaries and mechanics in every level, with clever gameplay that is easy to learn but difficult to master. Unlock powerful offensive abilities for your platform and fight back against Veetragoul’s peculiar foes. With its intuitive controls and tight and well-developed gameplay, OCTAHEDRON is a challenging and unique action game set in a mysterious neon world.

  • Entirely new and seamless platform creation mechanic

  • Super tight 2D action platforming at 60 fps

  • Pumping, atmospheric soundtrack by chip queen extraordinaire Chipzel, House and Trance producers Andre Sobota and Derek Howell, and Monomirror (of classic trance acts like Flutlicht)

  • Enemies and level elements that respond to and follow the beat of the music

  • Discover and unlock new platforms with unique abilities

  • 50 handcrafted levels across multiple worlds

  • No intrusive tutorials: levels & mechanics carefully designed to be discovered and explored on your own


Release date: 2018
Platforms: PC, PS4, Xbox one



Demimonde is the one-man game development studio behind OCTAHEDRON. The studio’s creator Marco, also known as Monomirror, is solely responsible for nearly all aspects of the game, including design, programming, and art.

Based in Zurich, Switzerland, Monomirror is a musician and sound engineer by trade. He works part time for music label Brave Wave Productions as Associate Director and Sound Engineer. Most recently he’s worked on their Generation Series brand of video game soundtrack remasters, restoring the Street Fighter II soundtrack and bringing it to vinyl and CD in collaboration with Capcom.


sign up for news:

Find OCTAHEDRON online or get in touch: