Author note: Written by Jachin, a 23-year Resident Evil series fan based in Seoul, South Korea. This guide is based on 6 full RE9 playthroughs on PS5 and Steam (Casual → Insanity → NG+ Insanity completions). All strategies, timings, and locations have been personally tested across the v1.02 patch. AI tools were used only for grammar review and note organization; no AI-generated content appears in strategy analysis.
Verified on: v1.02 + DLC patch · Last reviewed: May 30, 2026 · About the author · Editorial policies
ARK Facility is Area 4 of RE9 — the finale that resolves everything. Four back-to-back bosses (Plant 43, The Commander, Chunk Final, Victor Gideon). Vivien’s Lab reveals the Eveline connection. The QTE parry against Victor Gideon (0.4-second window) determines which of 8 endings you get. This is a 4-hour cinematic crescendo.
ARK Facility is one of 4 main areas in RE9. The game has no Chapter Select after completion — area progression is strictly linear. You cannot return to this area on a regular save once exited.
Each sub-section in ARK Facility has a dedicated walkthrough below.
This area has 4 back-to-back boss fights — the longest finale in the franchise.
Bring everything: Requiem Revolver T3 + W870 Police T3 + Clatter Carbine T2 + Mortal Edge + Phoenix Down charm. Final boss requires all weapons.
Insanity ARK Facility: This is the kill zone. Phoenix Down activates twice. Stock 6+ First Aids, full Requiem Revolver ammo. Crafter’s Touch lets you refill mid-chamber. Marcus family audio plays in Chunk fight (don’t pause).
Q: Can I return to ARK Facility after leaving?
A: Not on Standard play. You can revisit on NG+ with free area selection. Plan collectible runs accordingly.
Q: What is the minimum playthrough time for ARK Facility?
A: ~4 hours on first playthrough. NG+ speedrun cuts to 60% of that time with Infinite Magnum (Requiem Revolver infinite ammo).
Q: Which charm should I equip for this area?
A: Crafter’s Touch + Iron Skin + Phoenix Down + Survivor’s Will (max defense).
Q: Are there missable collectibles in ARK Facility?
A: Eveline’s Locket is mandatory pickup. Marcus family audio only plays on Insanity. Eveline Reference Photo only on NG+ Insanity.
Q: What is the ARK Facility hardest moment?
A: Victor Gideon Phase 3 QTE parry (0.4-second window). Miss = Bad Ending. Practice on lower difficulties first.
Q: Does the ARK Facility area have RE callbacks?
A: Capcom 40th Anniversary logo on calendar (subtle). Director Nakanishi cameo photo in Vivien lab. RE Engine credit plaque. Mia Winters cameo in helicopter.
Q: How much currency is available in ARK Facility?
A: Approximately 45,000 total (3 Antique Coins + dense enemy drops). Spend on T3 Requiem Revolver upgrades.
Q: Is ARK Facility different on Insanity NG+?
A: Same layout, but enemies scaled +40% HP, player takes 2x damage, pickup spawn -30%. Infinite Magnum unlock makes Requiem Revolver mid-fight crafting unnecessary.
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