Regarding the Trainer 1.4, Add Life, Add Magic, Invincible Min....
Using this trainer with the Steam version of the game works fine, as long as it is launched with elevated privileges.
However, when this trainer is activated, even if no actual options have activated, it seems to have this effect on the health bar of the overlord, where it makes it looks like the overlord has zero health, in other words it makes it look empty. But nonetheless, when the overlord has received enough damage, it will die.
I believe this is something that makes the gameplay using a trainer, very poor in quality and since the status of this trainer reads "active", I believe that this is something that should be looked at by the developers.