Information

Hellion Defense Protocol 2 is an orbital defense game where Earth is under siege. Blast incoming debris, arm neighboring worlds with turrets, drag allies into the kill zone as living walls, and upgrade your arsenal before the planetary shield collapses. Fast. Readable. Relentless.

Protocol Escalation (v2.2) is in. Summary of what shipped:

Combat

  • Boss every 5 waves (Hellion Core) with banner, clear gate, spoils drop
  • Splitter & Shield-leech debris
  • Overcharge Cycle fixed to real Nth-kill ×4

Sectors

  • Rules per theme (burn, toxic haze, void speed, quantum teleports, Earth regen)
  • HUD sector hint line

Tactics

  • Pickups: Shield / Overcharge Burst / Turret Surge
  • Ally Repair & Reload
  • Skills: Gravity Net, Ally Gunner, Emergency Cap
  • Turret Focus Mode (F or upgrades panel)
  • Supply drops: pick 1 of 3 cards

Meta

  • localStorage best wave / kills / achievements
  • Run summary on death → Play Again (no hard reload)
  • Record + achievements in Inventory

Polish

  • Mute + volume, boss/pickup SFX
  • Version 2.2 · Escalation
  • What’s New added to

Find us on steam