Game Designer - Rapid Prototype

About the RoleWe’re looking for a hands-on Game Designer who can rapidly transform original ideas into engaging, playable game experiences. Working closely with the Head of Creative and Lead Narrative Designer, you’ll explore new game concepts, mechanics, translating creative and narrative ideas into interactive experiences. You’ll leverage Unity, AI-assisted development tools, and rapid prototyping workflows to experiment with gameplay possibilities and identify promising concepts for further development.

Responsibilities

• Gameplay design: Develop compelling core mechanics, gameplay loops, levels, difficulty curves, rewards, and progression systems for casual and hybrid-casual mobile games.
• Rapid Unity prototyping: Independently build and iterate playable prototypes using Unity and C#. Use AI-assisted development tools where helpful, while maintaining technical understanding and control.
• Creative and narrative collaboration: Partner with the Head of Creative and Narrative Designer to connect gameplay with characters, story, visual identity, and emotional rewards.
• Playtesting and iteration: Assess game feel, controls, clarity, engagement, and friction; improve concepts based on feedback, competitive research, and player insights.
• Concept packaging and handoff: Prepare concise pitches, playable demos, and practical documentation that communicate design intent to production teams.

• Strong understanding of game design fundamentals, gameplay mechanics, player motivation, and game feel.
• Hands-on proficiency with Unity and C#, with the ability to independently create playable prototypes.
• Experience with rapid gameplay prototyping, through professional work, independent projects, or game development.
• Familiarity with AI-assisted coding and development tools.
• Ability to translate abstract creative concepts into engaging interactive experiences.
• Strong creative problem-solving skills and a willingness to experiment.
• Understanding of technical fundamentals, debugging, and organized development workflows.
• Strong communication skills and the ability to collaborate across creative and technical disciplines.
• A portfolio demonstrating playable games, prototypes, or implemented gameplay mechanics.

Preferred Skills

• Nice to HaveExperience developing casual, hypercasual, hybrid-casual, puzzle, or narrative-driven games.
• Familiarity with interactive storytelling, branching dialogue, and narrative gameplay systems.
• Experience using AI development tools such as Cursor, Claude Code, GTP CodexExperience developing reusable Unity systems and prototype frameworks.
• Understanding of mobile player engagement, retention, and gameplay marketability.
• Experience contributing to original game concepts or new IP development.

About HappibitsFounded in 2021, Happibits is a game publisher dedicated to the power of play. Our passionate team of developers and artists creates casual gaming experiences that bring relaxation, creativity, and a daily dose of happiness to players worldwide.