Demo Quality of Life, Item Rolling, and Bug Fixes

Added a new interface for selecting Nightmare level. This interface clarifies more specifically what changes when you change level as well

Each Nightmare Level costs 1 Boss Key from the previous level to unlock. Boss keys now always drop on the 5th consecutive boss kill in a run

50% of your Spirit is now lost when taking damage on Adventurer

Revamped item quality to scale in more interesting ways and generate better items

Reduced the amount of unusable trash dropping in Nightmare in general

Fixed a major level generation issue that could soft-lock runs

Fixed one memory leak

Fixed an issue that might cause gaps to appear in the end-of-run inventory screen

Added a delay for selecting upgrades to prevent them from being selected offscreen

Improved the performance when opening the Boss Chest

Fixed a bug where the Treasure Chest research node was causing odd behavior, including failure to save your research tree state

Fixed a variety of skill description issues (Thanks Moasseman!)

Fixed a mysterious skill tree line that was pointing to demo-locked skills

Improved the level geometry in the Warden's arena