Arcadian Octo Duck

This modification, which received its unique name from GitHub's name generation system, fundamentally changes the approach to boss battles, making every confrontation truly risky. The core mechanic is simple and harsh: if a boss kills you, you permanently lose one heart from your health. However, there is a way to recover what was lost - defeat any boss, and your hearts will be restored.

The mod's settings provide extensive options for gameplay customization. You can choose exactly how hearts will be deducted: one per death, or as a percentage - 5% or 10% of maximum health. Also available is a system of black and white lists for entities, allowing you to precisely define which mobs will be considered bosses. If desired, you can completely disable the ability to restore hearts, making every loss permanent.

For developers of other modifications, a convenient API is provided. If you don't want a particular boss from your mod to take hearts from players, simply send a string with that boss's class via an IMC message with the key boss_black_list.

Usage example:

FMLInterModComms.sendMessage("aod", "boss_black_list", EntityWither.class.getName());

Similarly, if you need to add a creature to the list of those who will take hearts, use the key boss_white_list.