Nowadays, we are faced with the Coronavirus disease. It is making people unable to live normally, many things have changed. This includes having to change to an online form, such as ordering food through online channels or working from home due to social distancing measures to reduce the risk of infection. These things are proof that the world has changed. The organizers saw that they could use this opportunity to develop a system that could visit the School of Information Technology, King Mongkut's University of Technology Thonburi. Therefore, the organizers created a three-dimensional game for people to absorb the atmosphere of the faculty building. Along with receiving information about the faculty through the 3D Game SIT Bloody Days. Our target group is high school students who are interested in studying at this faculty. The main function of the game is that users can walk around the faculty, solve puzzles, and fight monsters by answering questions. Including receiving important information from the faculty. Whether it is different room information, contact information, course information, occupations that have work opportunities, etc. The organizers choose to use game development tools like Unity to develop the game, the Blender program to develop 3D models, and Firebase to store the data that needs to be changed in the future. As a result of the development of this game, it can be used according to its purpose.