v0.20: Critical hits, harsher fatigue

New 'critical' status multiplies the damage of next attack, significantly improving single-target damage output.
Stricter 'fatigue' application, combined with new 'more fatigue' ascension should reduce the incentives for extreme (50+ turns) grinding.
Several important bugfixes prevent some rare, but game-stopping errors.

Major gameplay changes:

• New 'critical' status, multiplying actual damage dealt by the next attack.
• Fatigue now affects start turn card drawing
  • Fatigue reduction happens first, so you only draw less cards when fatigue was >= 20

Minor gameplay changes:

• New card tag: 'malus'
• Added 2 new achievements
• New ascension: 'Start turn: Fatigue +(turn count - 1)'

Minor UI changes:

• Added more card sounds
• Improved wording of some hints and tutorials
• Added and improved some effect sounds
• Added new music track by @duke-stanza
• Music progress is now displayed in settings window

New cards (8):

• Rune of Repair, Dusk or Dawn, Take Aim, Cloak and Dagger, Critical Chance, Honed Steel, Hit and Run, Fleeting Glint

New items (6):

• Twighlight Star, Acupuncture Chart, Sundial, Spear Trap, Fae-blessed Veil, Destiny Charm

New quests (7):

• 'Scenic vista: Watch sunrise and sunset'
• 'Graveyard: Dissect corpses'
• 'Warehouse: Recount inventory'
• 'Stadium: Train and recuperate'
• 'Cinderfall wasteland: Trial of fire'
• 'Frozen peak: Trial of ice'
• 'Casino: Use every chance'

Balance and miscellaneous changes:

• Buffed cards: Aimed Shot, Heavy Blow
• Buffed items: Bronze Mirror, First-Aid Kit, Gourd Flask, Bloody Coin, Bandit's Mask
• Rebalanced and re-formulated 'Idea' card

Selected bugfixes:

• Fixed broken rewards window scrolling after viewing help
• Fixed crash on setting high SFX volume
• Fixed playing unplayable cards which do not target enemies
• Fixed crash on viewing Pea Pod description
• Fixed quest difficulty modifiers affecting display of next quest options
• Fixed difficulty scaling and display of some quests