roblox debug.setstack

roblox debug.setstack is one of those functions that most casual developers will never see in their life, but for the crowd that likes to dig into the guts of the engine, it's a bit of a legend. If you've spent any time poking around the more technical side of Luau scripting—especially the side that deals with how the engine actually handles memory and function calls—you've likely bumped into this term. It's part of the debug library, which is essentially a collection of "god-mode" tools for Luau. However, there's a massive catch: in a standard Roblox environment, you can't just fire this up and start messing with things. Roblox has heavily locked down the debug library for some very good reasons, mainly to keep the platform from turning into a complete Wild West of security holes. ...

February 10, 2026 · 7 min · Suarez Benson