We have just made public a new version of the PC version of Boss Defiance, build 1.0.2 This patch will be applied by Steam automatically when you next start the game.
The patch solves the following issues:

Bug & Fix

• Fixed game issue when mapping custom keyboard controls. Now it is possible to set keyboard control and use them.
• Crystal UI health: fixed small problem with UI
• Minor fix on the UI of the Main Menu

Game changes & Balancing

• Increased the health of Crystal for all game modes
• Medusa Nerf: less hp and less damage with normal attack
• Minotaur Buff: added more hp and more damage when using special
skill
• Assassin Buff: deals more damage with normal attack

We will keep monitoring for feedback and will release further patches when needed. We greatly welcome your feedback!