RTF is a global modification that replaces all towns in the game.

But does the game support two different attack animations? I mean, specifically the "attack" string. So, when you click "attack," does the game randomly choose one of two animations?

Some creatures can have more than one attack animation; they are usually called attack00 and attack01. One of them is used for the creature's normal attack, and the other is used as a counterattack. For example, cave demons definitely have two attack animations. In one attack, the cave demon attacks by swinging its sword sideways, and in the other, it attacks from top to bottom.