Cheat Engine

[Dark Byte]

Get the lua sourcecode (ce's git has a copy)
and then look for the opcode define lists and math list. The order in which they appear determines the opcode they generate.
So easily enough just switch some around or insert a few bogus ones inbetween (but make sure that some that need to be in a specific order are dealt with)



then use encodeFuction to encode your script and never use strings

[atom0s]

Fully read his post again, he explained how to alter the opcode id orders used which will alter the results of encodeFunction/decodeFunction calls. If you alter the opcode ids of Lua, then all the decompiler tools will fail to product proper output unless someone manually fixes it.

Given that the Lua engine is still on their machine they can reverse the alterations made to the Lua engine and fix the decompilers to work with the customized output.