Update: Version 1.5

Back in 2014, version 1.0 of UnSummoning: the Spectral Horde was released through several online stores (but not Steam). Since getting approved through Greenlight, however, I've gone back and spent the last 10 months polishing and fixing numerous aspects of the game. Below is a list of changes that will be in the initial Steam release:

Change Log

• Added Xbox 360 controller support (you can now use twin sticks for the twin stick shooter!)
  
• Added 4 new enemies
  
• Added new power ups (and modified an existing one)
  - Health is now represented as hearts
  - Added Shield power up, which provides temporary Invincibility
  - Added Defense Orbs power up, which damages nearby enemies
  
• Completely redesigned the UI
  
• Added ghoul counter to HUD, to show the number of remaining enemies in the current arena.
  
• Rebalanced gameplay based on feedback and play testing:
  - Everyone moves faster
  - Basic enemies are easier (3 health)
  - Some other enemies are harder
  - Adjusted spawn rate of both Story & Arcade mode arenas
  
• Modified Radial Blast attack. It can now be used at any time but is color-based and draws on your staff's magic charge
  
• Modified Arcade Mode options. You can now select 3 levels of difficulty, plus choose any combination of 1-4 enemy colors.
  
• Modified scoring algorithm to (hopefully) make it more consistent, and to encourage playing harder difficulty levels
  
• Added various visual flourishes, including lots more foliage to many arenas. So much foliage...
  
• Added Steam Achievements