Velatus

Today both of my external drives died which had both mod workspaces on them. So I want you guys to decide on which one of them I should make again (I will make the other one that loses, just after the one that wins is complete).
From Beneath The Ulthran Skies (FBTUS) is massive fantasy RPG mod with a strong focus on exploration, player customisation, and progression. Here's a short bullet point list of the features the mod had:

• Unique Biomes
• Large Scale Affix System (Affects everything from Crafting Materials, Items, Entities, and World Events)
• Evolving Threats
• World Events
  
• Soul Tree (The players passive tree)
• Magic System
• Factions and Reputation System
• Alignment System (Deities)
• Player Choice and Consequences
• Static and Dynamic Structures
• Diverse Bosses
• Scaling World Difficulty (World Tier)
  

Dungeon Delver is a dungeon building mod, which used some concepts from FBTUS, where you can fight your way through them to get access to powerful items such as Relics, Dungeon Blueprints, and Unique Weapons and Armour. Here's a short bullet point list of all the features the mod had:

• Large Dungeon Variety
• Buildable Dungeons to Explore
• Dungeon Affixes that Greatly Modify Dungeon Appearance and its Experience
• Relic Curios (Affects Dungeon Blueprint Generation Logic)
• Item Affixes (Weapons and Armour)
• Customisable Difficulty and Rewards

I also have a blog out specifically for Dungeon Delver if you want more information on what that mod was like: https://www.planetminecraft.com/blog/dungeon-delver-6705651/