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