It's not really Encryption
but anyway, some game data text files are encrypted using Two's complement. Since it's used to represent negative values in signed integers, one can simply de-/encrypt it using the sign operator -
.
for example in C:
char decrypted = -encrypted;
Usualy all files ending with .cod
.
- editor.cod
- figuren.cod
- haeuser.cod
- text.cod