Third-Person Open-World PC Game

I already own a sizeable collection of characters, animations, environments and UI packs from the Unreal Marketplace; what’s missing is the technical glue. I need an experienced Unreal Engine developer... (Budget: €6 - €12 EUR, Jobs: 3D Modelling, C++ Programming, Game Design, Game Development, Game Programming, Level Design, Unity 3D, Unreal Engine)