@ZhouyiIds Originally I thought of making them do just that - run over a wall, but it mutated into gnawing through walls along the way as it's more flexible and allows gnawing through cave wall also.
Maybe they could do both. I'll have to think about it.
@ZhouyiIds Thanks. I'm not doing anything fancy. Just adding height to newcomers when there's already many in one place. π
But it's balanced to not become higher than the walls before the walls fall from being gnawed on.