Added 16 minutes later
Yes, the unique identifier of a creature, ID, can be either CREATURE_987 or CREATURE_TEST... in my opinion, for convenience, it's better to use CREATURE_TEST rather than CREATURE_987.
Psatkha wrote this. As I understand it, you can add a creature, but if there are several mods, only one of them will remain if they are written in different files. In this mod, we will add one creature, but I haven't encountered any other mods that change the creature.xdb file (except for the config). The best thing about this mod will be that it will work on the standard .exe.