Welcome to Klang Valley MRT: Kajang & Putrajaya Lines. Klang Valley MRT: Kajang & Putrajaya is a Roblox game made by Hume Transport where you ride and drive two Lines such as Kajang Line and Putrajaya Line. It is based on Malaysia. You can explore any Train Stations. Kajang Line and Putrajaya Line have Announcements that you can heart that it is going and arriving. What do you want to do? Beware of any Train that have may derailed.