Final Castle Defence : Idle RPG for Android

There is a castle wall at the player's disposal, that is attack by hordes of mobs from level to level and sometimes even strong level bosses. There are several upgradable towers on the wall. The wall can also be upgraded. 

You can place heroes with long range weapons on the wall and release close combat heroes to the battle field. There are combat animals. Each hero has a unique set of skills. There are several slots for various items and artifacts.