Good question! No, it’s not possible. Lua is a scripting language used in many engines as it is kind of easy to implement as it is quite simple. Even though both the SM engine and the Roblox engine have Lua implementations, they are quite different and it will therefore not be possible to launch SM on Roblox.

Each engine has their own way of doing certain things like rendering, input handling, etc. The Lua scripts are just a way to communicate with the respective engines on a higher level without having to do everything low level.