Intro
We built a complete VR setup from scratch to let rats play DOOM. The system includes a motion-tracked treadmill ball, a panoramic headset, an input trigger, and a reward circuit. All hardware and software components are open sourced, including 3D-printable designs, circuit diagrams, firmware, and control software.
The first version (v1) was built in New York by Viktor, who trained rats to walk through a corridor in DOOM using a simpler rig. That version was featured on Vice and PC Gamer. After moving back home, the project was paused. Public interest reignited development, leading to v2, a more advanced and modular version built in collaboration with electrical engineer Sándor Makra. Akos Blaschek later assisted significantly in documenting the project for open-sourcing, aiming to enable others to replicate and build upon this work. Key metallic components were designed and sourced in collaboration with SZURWIN KFT.
V1
Basic ball setup
Rats trained to run forward
Minimal sensors and mechanics
No panoramic screen
Rat VR Setup Version 1
V2
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