Roblox wants to make their game as fair for everyone as possible, so using modified clients will result in some punishment.

Build a Plane is an experience on the Roblox platform where you use different blocks to build a plane that you can fly to ...

Several Roblox developers have criticised the lack of support from the Roblox Corporation in providing adequate anti-cheat tools, saying it’s becoming “demoralising and exhausting” to create ...

They can then explore ROBLOX — interacting with others by chatting, playing games, or collaborating on creative projects. There is no cost for this first plot of virtual land.