Story based|Game Stages|Thousands of recipe changes|Custom world generator|Over 500 quests|Custom NPCs|Advanced Space Exploration|Harder than RLcraft but still fun.
Progression Based | Game Stages | Alternative Questing | Custom post-apocalyptic world generator and dungeon loot | Definitely harder than RLcraft and Sevtech.
Tech Only|Over 170 Quests|Age Based Progression|Realism|Custom Structures|PvP|Limited Lives|Harder than "FTB Infinity evolved: Expert Mode" could be harder than "Sevtech: Ages".