Roblox custom bytecode injection script

Roblox custom bytecode injection script development is one of those topics that usually marks the transition from a casual hobbyist to someone who's truly obsessed with how the Luau engine works under the hood. Most people who jump into Roblox scripting are perfectly happy using the built-in script editor, typing out some standard Lua code, and hitting the run button. But then there's a specific subset of the community that wants to go deeper—past the source code and straight into the instructions that the virtual machine actually reads. It's a bit of a "rabbit hole" situation, honestly. Once you start looking at how bytecode is structured and how you can manipulate it, the way you look at game development (and game security) changes forever. ...

January 23, 2026 · 7 min · Wang Dilia