Progression: 

Progression remains similar to the vanilla game in the sense that the player must first traverse to the Nether and then the End. The differences arise as a result of the new requirements a player must meet before entering any of these dimensions. Rather than immediately enter a dimension, a player must increase their power level by completing quests/defeating specific bosses.

(Entering the Nether - Questline)

Progression begins by first defeating the Void Blossom boss, which is found using void lilies. From there on out, any of the required bosses can be defeated in any order the player chooses, but must all be defeated before being able to progress. Quests can be found at the top left hand screen of the inventory menu with a book icon.

(Entering the End - Questline)

Generation Overhaul:

Each dimension has received a revamp in terms of generation with mods like Bygone Nether, Mystics Biomes, Terralith, Outer Ends, and Cliff Under a Tree, creating some truly mesmerizing landscapes.

New structures, boss rooms, and dungeons are also scattered sparsely throughout the world. 

Combat Revamp:

This modpack uses the Better Combat system instead of regular vanilla gameplay, allowing for more engaging battles with a variety of different-playing weapon types.

RPG Mechanics: 

Traditional roleplaying mechanics are also present here with a dedicated skill tree, with various branching class choices, player titles, parties, bosses, and engaging combat.

(Skill Tree)

Weapons are equipped with modifiers and gem slots to allow for more customization and item-specific stat rolls.

The loot tier system has also been enhanced, highlighting different rarities of items and weapons. 

Various other traditional RPG mechanics also make an appearance like waystones, events, and mob captains.

Quality of Life Improvements:

New animations, textures, and small but noticeable features are all stockpiled into this one modpack to make the experience easier and a lot cooler. For example, the new minimap and world map:

In addition to the updated animations

Updated enchantment visuals

Unique enchantment books, and much more

Performance:

Numerous performance mods are included to ensure the gameplay is as smooth as possible both on servers and locally. This may in turn limit render distances slightly, but will provide a better overall framerate and a more stable experience.