The Mastery Expansion is live! Go get it and become a true Core Defense master! https://store.steampowered.com/app/1563040/Core_Defense__Mastery_Expansion/

Added

• Mastery: a permanent progression system with levels and mastery points
• Supercharge: optional difficulty modifiers on top of the normal difficulty levels
• Daily Challenge: daily run with fixed seed, difficulty and supercharge and an online leaderboard to show off your skill
• Overload 21-30: Added ten new difficulty levels
• Rainbow: after beating Overload 25 you can choose any primary color
• New tower Berserker: Loses health when attacking and deals percentage of maximum health as damage
• New mob Powder Keg: Deals considerable AOE damage upon death
• New mob Kamikaze: Flying mob which ignores walls and goes straight for towers or the core
• New achievement Master: Reach the maximum level.
• New achievement Supercharger: Beat each supercharge modifier.
• New achievement Pain Train: Beat the game on difficulty Overload 25.
• New achievement Abstinence: Beat Overload 25 without masteries.
• New achievement Groundhog: Finish a daily run.
• New achievement Apex: Finish a daily run with a score of at least 5000.
• New achievement Grandmaster: Beat the game on difficulty Overload 30.
• New module Reckoning: Gain 5% bonus score for this game.
• New module Common Stack: Increase the limit for all common upgrades.
• New module Uncommon Stack: Increase the limit for all uncommon upgrades.
• New module Rare Stack: Increase the limit for all rare upgrades.
• Added keyboard shortcuts for choosing and skipping rewards (1-5, Spacebar)
• New setting to disable damage numbers
• You can now hold the shift key to build multiple wall stacks at once

Changed

• Moved highscores to the compendium
• Run infographics now have color coded tower positions and rarities
• Removed the reward order from infographics for now
• The reset build button has a different icon and is now on the core
• Damage to cores or towers is now capped at 25% maximum health in endless mode
• Rearranged unlock thresholds for rewards
• Random zones no longer spawn on towers
• Reworked the range indicators for better legibility
• Reduced maximum amount of void zones from 10 to 5
• Increased endless health scaling
• Healer now grants all adjacent allies a 20% frenzy buff for 2s on hit
• Shield Generator now grants all adjacent allies a 20% frenzy buff for 2s on hit
• Sniper Damage upgrade no longer grants bonus damage, instead inceases kill bonus cap
• Less is more module now reduces reward options by 2 but grants extra bonus reward
• Endless Modules bonuses 1% 0.5%
• Boomblaster attack speed 0.5 0.4
• Boomblaster Speed upgrade stacks 5 3
• Lightning Speed upgrade speed 0.25 0.15
• Executioner Damage upgrade damage 9 12
• Sunbeam Damage upgrade stacks 15 20
• Hammerling all sizes attack speed 0.1 0.15
• Giant Kite damage 4 5
• Giant Sawblade damage 5 6

Fixed

• Mobs stuck at 0 health no longer occur when using the Cleaver
• Mobs split by the Cleaver now get their shield capacity reduced correctly
• The device's visual scaling setting no longer affects the game
• The add wall stack icon is now displayed in your chosen color
• The ion cannon rotation arrows are now displayed in your chosen color
• You no longer get a win streak warning when abandoning an endless game

In Core Defense you will ...

• Enjoy hundreds of hours of challenging gameplay
  
• Play in short sessions of under an hour or binge for hours on end
  
• Discover different rewards with every run
  
• Explore many different playstyles and strategies
  
• Loose yourself in the addictive loop of reward, build, battle, repeat
  
• Blissfully despair at the many challenging difficulty levels
  
• Unlock dozens of quirky and elusive achievements
  
• Share exportable infographics about your runs

• OS: Ubuntu 12.04. Fedora 21. Debian 8 or later
• Processor: Dual Core 2 GhzMemory: 2 GB RAM
• Memory: 2 GB RAM
• Graphics: Dedicated graphics card
• Storage: 300 MB available space