I’m developing a virtual-reality training simulation that must run smoothly on iOS and Android headsets. The experience is strictly VR—no AR or MR elements—and it will be used to guide learners through step-by-step procedures in a realistic 3-D environment. I already have the core concept, reference videos, and a rough storyboard; what I need now is a seasoned VR developer who can turn those materials into a polished, interactive mobile build. Unity or Unreal Engine is fine—as long as the final app launches reliably on mainstream mobile headsets and meets typical store-submission performance thresholds (steady 60 fps, minimal heat and battery drain). Key pieces I’d like you to handle: • Environment and asset integration (I can supply models or you can create lightweight optimised substitutes) • Interaction scripting—users must be able to pick up tools, operate equipment, and receive contextual feedback • Basic UI overlays for instructions and progress tracking, designed for comfortable VR viewing • On-device optimisation, builds, and iterative testing on both iOS and Android Deliverables: 1. Source project with clean, well-commented code 2. Platform-specific installers (IPA & APK) ready for internal testing 3. Short setup/read-me so my in-house team can run future builds without hand-holding Acceptance criteria are simple: the simulation should load in under ten seconds, maintain frame rate throughout the full scenario, and guide a first-time user from start to finish without confusion. If this is in your wheelhouse, let’s talk timing and milestones—I’m eager to see a playable prototype soon.