Technologies used to create virtual environments in video games include game engines like Unity and Unreal Engine, which provide robust tools for developers to design immersive worlds. These engines facilitate realistic graphics, physics simulations, and interactive gameplay mechanics through advanced rendering techniques and 3D modeling capabilities. Additionally, virtual reality (VR) and augmented reality (AR) integrations bring an added layer of immersion, allowing users to experience games in novel ways. With continuous technological advancements, the complexity and realism of virtual environments keep evolving, enriching player engagement and experience.