This DOOM-based VR rig for rats, though, is less about hacking DOOM, and more about hacking the rats. What started as a side project for [Viktor Tóth] has evolved into quite a complex apparatus.

• Playing DOOM via Twitter • This guy built a set-up so his rat could play Doom • I put some Doom in your Doom so you can Doom while you Doom • Doom running in task manager with each CPU ...