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Communiqué de presse

'YOU vs Zombies' Playable Demo and Developer Explainer Video Released for Steam Next Fest June 2026

[CARDIFF, 3rd JUNE 2026] – Indie Welsh game development studio 10six Games, comprised of industry veterans from Rockstar Games, Aardman, and the co-founder of 2K Games, today confirmed YOU vs Zombies, a high-intensity, sardonic, horde survival roguelite, will feature in the upcoming Steam Next Fest. A playable demo is available to download and stream immediately.

Alongside the demo, the studio has released a new Developer Explainer video featuring CEO Susan Cummings. The video explores how the game's Ritual system works, and how the studio has combined handcrafted design with AI-assisted personalisation. 

Key Details & Assets:

  • Steam Next Fest Dates: June 15th – June 22nd, 2026 (press previews go live on 4th June).

  • Playable Demo: Available now on the Steam Store DEMO Page.

  • Susan vs Zombies Dev Video: YouTube.

  • Updated Press Kit: High-resolution screenshots, and trailers can be downloaded via Impress.

About YOU vs Zombies

Dodge, weave, and hurl spells through hordes of undead in this demo slice of a sardonic time-traveling roguelite, starring any hero YOU describe. You get one character to kill zombies, fix time, and beat the boss. Try not to get splatter on your new meat suit.

The Human-Led Creative Process 

In YOU vs Zombies, generative AI is a tool, not the designer. Our platform utilizes Gemini AI running on strict, game developer-authored logic to interpret player prompts, ensuring all generated content adheres to our handcrafted world-building and safety guidelines.

  • Ethical, Custom Art: Character visuals are generated using a custom AI model (LoRA) trained exclusively on our studio's original artwork, guaranteeing every hero shares our unique artistic DNA rather than generic AI aesthetics or placeholder artwork.

  • Mathematical Balance: Generated character abilities and spells are not random; they are governed by strict, human-designed game mechanics and mathematical systems to ensure fair gameplay.

The Next Fest demo allows players to test this foundational generation engine and combat. These systems form the bedrock for the deep roguelite progression, loot, skill and trauma mechanics currently in development for our upcoming Early Access launch.

The Developer Story: 10six Games

  • About Us: 10six Games is a studio founded by creative game developers, artists, and engineers. The co-founders have been making video games together for nearly 30 years, including stints at Rockstar Games, Tiny Rebel Games, and co-founding 2K Games and 2K Sports. The team is made up of senior multi-disciplined professionals across engineering, development, writing, game design, and art who started this team with a shared passion: to experiment and discover what new game experiences could be possible.

  • Our Philosophy: What sort of games could we make that would be otherwise impossible? What Magic could we find? We use AI to empower our designers, not to replace them. Every generated output is filtered through our "Infinity Platform" to ensure it meets our high standards for fun and fairness.

10six Games is supported by: The UK Game Angels, Playcap, British Business Bank, Andover Ventures, Untamed Ventures, and a roster of 26 game industry veterans.

Notes to Editors: Content Creator Information: The "Eat and Be Eaten" Campaign

10six Games is currently running a program for content creators participating in Steam Next Fest. Verified creators who publish a video of their YOU vs Zombies demo gameplay are eligible to receive a $25 Uber Eats voucher. Interested creators can find full details and submit their content via Discord.

--ENDS--