Harder Infestations +100% - increases the mob spawn multiplier from 2 to 4, and the bonus gamestage from 30 to 60

Harder Infestations +50% - Increases the mob spawn multiplier from 2 to 3, and the bonus gamestage from 30 to 45

Harder Infestations Progression - increases the difficulty of Infestation Quests based on Quest Tier
See main description for details - RECOMMENDEDED ONLY FOR THE MOST HARDENED PLAYERS!