New Features 🙌

• New area: chasm!
• Steam achievements! (5 to start with, more to come)
• Experimental "toxic" meter (replaces toxic damage)
• Experimental early game mutant miner behaviours (passive, deaf)

Bug Fixes/Improvements 🐛

• Adjust mutant miner HP (varied by type)
• Additional groundwork for key bindings
• Improve tabbed UI for settings and controls
• Increase fall damage, add dedicated SFX and screenshake
• Fix some material issues