“Buildg Virutual World” is an intensive academic project at Entertainment Technology Center of Carnegie Mellon University . In interdisciplinary team of 5 (programmers, 3D artists, sound designer) in each round, I worked on creating unique Extended Reality expereinces with Unity 3D projects in 1-3 weeks. Using emerging technology playforms (HTC Vive + controllers, Oculus Rift + Leap Motion, Meta II), I learned iteration, fast prototyping, communication and collaboration skills through projects.