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Protocol IV

Protocol IV

Protocol IV is an achievement in Antivirus Survivors 2003 Professional.

  • Official description: Complete Protocol III
  • Global completion: 19.5% (Steam global player stats)
  • Rarity: Rare (rare) — harder than 37% of this game's achievements
  • Unlock bar: ████░░░░░░░░░░░░░░░░ — 19.5% of players

Where it sits

  • Progress tier: Late-game — needs a deliberate push, or a run deep into the late game (#54 of 86 by rarity)
  • Completion: 19.5% | game median 13.9%
  • Similar achievements: 21 (completion 13.2%–26.0%)
  • Type: Story

Neighbours

Guides: 112Full release (Sep 28, 2026)Verified 2026-09-28
Antivirus Survivors 2003 Professional
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