Waves & Progression:
  • Survive escalating waves (while the crystal's HP is not down to 0, standing around the crystal can auto-heal)
  •  Clear all enemies using weapons and crystal beam
Economy:
  • Kill enemies for money; collect gems for crystal upgrades
  • Shop between waves to buy buffs/weapons (same buffs can stack)
  • Picking up the same weapon can add grade to boost weapon stats
  • Scrapping unwanted weapons on the ground to get money
Controls:
  • WASD: Move | Shift: Run | Left Mouse: Shoot | Space: Jump (can use space+ctrl to climb up barrels)
  • 1/2: Switch weapons | R: Reload 
  • Mouse wheel can cycle weapons; Flashlight key(F) to skip wave countdown
  • Press G to scrap weapons on the ground