How the Roblox Compiler Actually Works Under the Hood

If you've spent any time tinkering in Roblox Studio, you've probably wondered how your messy scripts actually turn into a functional game, and that's where the roblox compiler and the Luau engine take center stage. It's one of those things we often take for granted. You write some code, you hit the "Play" button, and suddenly your character is flying across the map or a door is swinging open. But behind that "Play" button, there's a massive amount of heavy lifting happening to make sure your code doesn't just run, but runs fast. ...

February 10, 2026 · 7 min · Augusto Roman