UnrealZoo: Enriching Photo-realistic Virtual Worlds for Embodied AI

• URL: http://arxiv.org/abs/2412.20977v2
• Date: Tue, 12 Aug 2025 11:56:32 GMT
• Title: UnrealZoo: Enriching Photo-realistic Virtual Worlds for Embodied AI
• Authors: Fangwei Zhong, Kui Wu, Churan Wang, Hao Chen, Hai Ci, Zhoujun Li, Yizhou Wang,
• Abstract summary: We introduce UnrealZoo, a collection of over 100 photo-realistic 3D virtual worlds built on Unreal Engine.<n>We also provide a rich variety of playable entities, including humans, animals, robots, and vehicles for embodied AI research.
• Score: 37.47562766916571
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We introduce UnrealZoo, a collection of over 100 photo-realistic 3D virtual worlds built on Unreal Engine, designed to reflect the complexity and variability of open-world environments. We also provide a rich variety of playable entities, including humans, animals, robots, and vehicles for embodied AI research. We extend UnrealCV with optimized APIs and tools for data collection, environment augmentation, distributed training, and benchmarking. These improvements achieve significant improvements in the efficiency of rendering and communication, enabling advanced applications such as multi-agent interactions. Our experimental evaluation across visual navigation and tracking tasks reveals two key insights: 1) environmental diversity provides substantial benefits for developing generalizable reinforcement learning (RL) agents, and 2) current embodied agents face persistent challenges in open-world scenarios, including navigation in unstructured terrain, adaptation to unseen morphologies, and managing latency in the close-loop control systems for interacting in highly dynamic objects. UnrealZoo thus serves as both a comprehensive testing ground and a pathway toward developing more capable embodied AI systems for real-world deployment.

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