Startups · AI

3D Game Programmer (Unity)

Spellbrush · San Francisco or Tokyo · Remote

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About Spellbrush

magic anime pictures. Backed by Y Combinator.

About the role

You will join a small but extremely talented team to define a new kind of video game experience. You'll work alongside top otaku minds in the industry, including the creator of Warudo and Cytoid , a Google Deepmind veteran behind Project Astra , and top-tier AI researchers. As an early member of this team, you will have significant artistic and research freedom to shape what could become the next-generation LLM-driven storytelling experience.

What they're looking for

  • Bonus points if the game is first-person
More about this role

tl;dr: We're building a 3D first-person adventure game where an AI companion is the core of the game. Think MiSide with LLMs, but truly integrated with gameplay, not just a RP chatbot.

Here at Spellbrush , we're passionate about making a good anime game.

We also happen to be the world's leading generative AI studio—we're the team behind niji・journey .

Our mission is simple: use AI to bring characters to life and push the boundaries of narrative-driven games.

We’ve developed an in-house LLM storytelling system that blends AI, story, and gameplay—going far beyond shallow “chat-only” experiences.

The result is an AI companion who cooperates with you in puzzles, remembers across worlds, and changes how each chapter unfolds.

We’re looking for a strong Unity engineer who loves 3D story-driven games. You’ll join our lead Unity dev, who has spent the past 5 years building interactive anime avatars, to grow our working prototype into a full game.

In-game screenshots (development build)

You will join a small but extremely talented team to define a new kind of video game experience. You'll work alongside top otaku minds in the industry, including the creator of Warudo and Cytoid , a Google...

Read the full posting on Spellbrush's site ↗

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