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Robo-Saber: Generating and Simulating Virtual Reality Players

Nam Hee Kim Jingjing May Liu Jaakko Lehtinen Perttu H\"am\"al\"ainen James F. O'Brien Xue Bin Peng
Sep 2026
Artificial Intelligence Machine Learning Human-computer Interaction

Abstract

We present the first motion generation system for playtesting virtual reality (VR) games. Our player model generates VR headset and handheld controller movements from in-game object arrangements, guided by style exemplars and aligned to maximize simulated gameplay score. We train on the large BOXRR-23 dataset and apply our framework on the popular VR game Beat Saber. The resulting model Robo-Saber produces skilled gameplay and captures diverse player behaviors, mirroring the skill levels and movement patterns specified by input style exemplars. Robo-Saber demonstrates promise in synthesizing rich gameplay data for predictive applications and enabling a physics-based whole-body VR playtesting agent.

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