Defend the core. Your tower sits at the center and auto-fires at the nearest foe. Don't let enemies drain its HP to zero.
Aim & fire. Move the mouse to aim the reticle and hold to fire a bolt stream for big extra damage. Manual fire uses a clip that reloads when empty — upgrade Auto-Loader for a bigger, faster clip.
Abilities Q Nova · W Cryo · E Overdrive · R Repair. Each has a cooldown — use them to survive tough moments.
Choose a Power. After every wave, pick 1 of 3 boons. They stack, reshape your tower, and last until it falls — then spend gold in the shop on damage, multi-shot, splash, burn & more.
Level up. Kills grant EXP → Skill Points → permanent Hero Stats that carry across every run.
A unique boss — Brute, Hive, Warden, Juggernaut — arrives every 5 waves, each with its own tricks. How long can you hold the line?
Pick one — it stays until your tower falls, and reshapes it.
These bonuses are permanent and apply to every run.