Further edit:
They have added pay-to-play mechanics.

Edit:
Buggy mess now. They have totally broken the game to the point it is unplayable:
Mobs and bosses randomly stop spawning, preventing any progress.
Switching teams often leads to the game falling into a black screen.
Mobs & bosses killed sometimes do not register any progress.
Inactive parties stop making any progress at all despite how easily they could and have beaten those areas.



Before edit:
One of the best idle games I have seen, with lots of free content available.

Further edit: They have added pay-to-play mechanics. Edit: Buggy mess now. They have totally broken the game to the point it is unplayable: Mobs and bosses randomly stop spawning, preventing any progress. Switching teams often leads to the game falling into a black screen. Mobs & bosses killed sometimes do not register any progress. Inactive parties stop making any progress at all despite how easily they could and have beaten those areas. Before edit: One of the best idle games I have seen, with lots of free content available.