Added customizable crowd density in Survival Mode.
Increased the upper limit for customizable zombie density in Survival Mode.
Added a feature to delete save files when loading records.
Tentacle zombies now appear in the Hard difficulty of Survival Mode.
Increased the speed and range of auto-pickup.
Fixed an issue where NPCs in Survival Mode would incorrectly call the protagonist "Jack."
Fixed a bug where the girlfriend's backpack would suddenly disappear.
Adjusted the navigation for some quests.
Modified the flow of certain side quests.
Updated the rewards for some side quests.