Browser Retro Pseudo-3D Game Engine

I’m building a fully browser-based, Wolfenstein-style game maker and need a developer to craft the core engine and its accompanying website. Core functionality • Engine runs entirely client-side—no desktop installers, no server-side rendering... (Budget: $250 - $750 USD, Jobs: C# Programming, CSS, Game Design, Game Development, JavaScript, PHP, Unity 3D, Web Development)