Summary pulled directly from Steam - Some text may only be applicable to Steam platform

In Gatekeeper: Eclipse you'll find:

• Three unique locations of The Nowhere.
  
• Around 1000 enemies will rush you in order to steal the Heart of Time.
  
• Various Gates to defend from the waves of enemies.
  
• New mechanic: the enemies will emerge from the portals.
  
• If you don't clear the location from all enemies, they will follow you to the next lvl.
  
• Free skills on each lvl.
  
• The prologue includes two endings.