Founding Game Designer (£80k-110k + Equity) at Pebble

Founding Game Designer

Salary: £80k–110k + Equity

Company Description: Pebble – VC-backed generative AI startup

Job Description: As the first Game Designer at Pebble, you will define the mechanics of a generative learning world for children aged 6–10. You will design the systems, constraints, and voice-driven progression for a procedural environment in Godot 4. This role bridges game design, child development, and AI to create meaningful, adaptive play.

Location: London, UK

Why this role is remarkable

• Join a founding team led by former Google and Synthesia leaders who scaled a startup from $3M to $100M ARR.
• Build the first “generative learning world,” a new genre inspired by The Diamond Age where the narrative and world adapt in real‑time.
• Massive ownership as the first design hire with significant equity in a high‑growth startup backed by top‑tier US investors.

What you will do

• Design the exploration systems, pacing, and progression mechanics that drive engagement through genuine curiosity rather than dark patterns.
• Use AI tools and LLMs to prototype text, image, and voice‑driven interactions within a Godot 4 development environment.
• Define the visual identity and art direction for a procedurally generated 2D world and its central AI companion characters.

The ideal candidate

• Has shipped at least one game or interactive product where they owned core systems design, progression, and player economy.
• Demonstrates strong systems thinking, with a portfolio showing how they design rules for emergent behavior rather than fixed content.
• Is a creative generalist comfortable with Godot and prototyping quickly for a young audience of children aged 6–10.

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