Explore the beautiful Gothic city of Desolus in the midst of a devastating cataclysm. Solve artistic, Escher-like architectural puzzles spanning past and future dimensions.
Partner with a mysterious guardian and their alter ego to unravel a haunting narrative and save the city from complete annihilation.
Hop between dimensions and manipulate black holes to transpose staircases, doorways, ruins, and much more from one version of Desolus to the other.
Employ sharp spatial reasoning skills to restructure pathways and navigate a breathtaking, non-linear metropolis.
Progress further than ever before into the Mirrored Garden in Today’s new demo. Decipher more advanced puzzles by mastering mirroring mechanics and shifting dimensions to forge the path ahead.
DESOLUS is coming to PlayStation 5, Nintendo Switch 2, Xbox Series X|S, and PC via Steam in Q3 2026 with language support in English, Japanese, French, Italian, German, Russian, Chinese (Simplified & Traditional), Dutch, Korean, Spanish (Latin America & Spain), Portuguese (Brazil & Portugal), Bulgarian, Czech, Danish, Finnish, Greek, Hungarian, Indonesian, Norwegian, Polish, Romanian, Swedish, Thai, Turkish, Ukrainian, and Vietnamese.
For more information, check out the official DESOLUS website, and follow solo developer Mark J. Mayers on X and Bluesky.
Would DESOLUS’ demo launch be a good new item to share with your readers?
Check it out here ahead of Steam Next Fest, and we’re grateful for any consideration of DESOLUS for any “Best of” event roundup articles you may be planning.
Assets
About Mark J. Mayers
Mark J. Mayers is a solo developer based in Seattle, Washington. He has worked on several notable titles, including the BAFTA-winning open world mystery game, Outer Wilds, the critically-acclaimed puzzle game, Manifold Garden, and more. He is currently developing his first solo passion project, DESOLUS, an artistic first-person puzzle game nearly 13 years in the making, arriving on PlayStation 5, Nintendo Switch 2, Xbox Series X|S, and PC via Steam in Q3 2026.
About The Quantum Astrophysicists Guild
Quantum Astrophysicists Guild (QAG) is a Seattle, Washington-based publishing and development company working in the gaming industry for over a decade after its founder, Ty Taylor, left Microsoft. Its name, meaning the research of very small and very big things, encapsulates the group’s goals of publishing and developing any and every kind of project, ensuring the highest quality.
QAG is responsible for numerous award-winning projects that have sold millions of copies including The Bridge (4M units), Tumblestone (1.5M units), Cozy Grove, Sail Forth, and Roundguard, and more.
Media Contacts
Sarah Blackwell | Bailey Izumita
Stride PR for The Quantum Astrophysicists Guild