Lead Puzzle Core Designer – Casual Mobile Games

King; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

King is seeking a Principal Game Designer to shape the core puzzle gameplay for a new casual mobile title. You will define level mechanics, pacing, readability, and moment-to-moment fun to deliver instantly satisfying experiences.

Collaborate with designers, artists, engineers, product managers, and data scientists to iterate on blockers, progression systems, and difficulty curves across thousands of levels.

Qualifications

• Experience designing for mobile free-to-play titles.
• Proven ability to design meta systems and long-term engagement.
• Strong collaboration across design, art, engineering, and product.

Responsibilities

• Design and iterate core puzzle gameplay with satisfying moment-to-moment interaction.
• Create and evolve blockers and level mechanics for variety and depth.
• Define overall gameplay feel, pacing, readability, and feedback.
• Collaborate with leadership to integrate mechanics into level progression.
• Partner with Product and Data Science to analyze behavior and tune difficulty.
• Prototype new mechanics to expand design space.
• Ensure systems align with meta and economy design.
• Document designs clearly for cross-disciplinary teams.
• Identify design risks early and work with producers to deliver.
• Monitor market trends in puzzle and casual games.

Skills

Mobile game design

Casual puzzle design

Meta systems design

Progression frameworks

Player engagement

Data-driven iteration

Cross-team collaboration

Communication

Delivery leadership

Job description

King is seeking a Principal Game Designer to shape the core puzzle gameplay for a new casual mobile title. You will define level mechanics, pacing, readability, and moment-to-moment fun to deliver instantly satisfying experiences.

Collaborate with designers, artists, engineers, product managers, and data scientists to iterate on blockers, progression systems, and difficulty curves across thousands of levels.