Resident Evil 9 walkthrough: how to plan a clean first run
A practical resident evil 9 walkthrough starts before you load the first save. The campaign throws resource scarcity, scripted enemy swarms, and puzzle chains at the player within the first hour, and a run that ignores inventory math tends to fall apart by the mid-game hospital section. This guide treats the campaign as a single resource system rather than a sequence of isolated rooms, and explains how to pace healing items, ammunition, and progression keys so that you reach the late game with enough gear for the harder fights.
Before going deeper, it helps to set expectations. Resident Evil 9 keeps the survival design used in recent entries but tightens the resource curve and pushes more scripted encounters into areas the player has already explored. The walkthrough below covers the intended chapter order, optional content, the puzzle logic behind each lock, and the boss strategies that gate the final act. Read the chapter table first, then use the puzzle and boss sections as a reference while you play.
Two things make this particular campaign harder to brute-force than its predecessors. First, healing herbs are scarcer and they cap at a lower carry weight, so a careless engagement in chapter 2 can leave you short for the hospital boss. Second, the game seeds upgrade parts in fixed locations that are easy to walk past, and a missed shotgun stock in the school basement cannot be picked up after the chapter ends. Treating the route as a checklist rather than a series of fights is the most reliable way to finish the campaign on a first save file.
Campaign chapters at a glance
The table below summarises the intended route, the primary threat type, and the expected resource load at the end of each chapter. The numbers reflect a Standard playthrough. Hardcore and Assisted modes shift the values, but the chapter structure stays the same.
| Chapter | Setting | Main threat | Key resources to preserve | Expected end-of-chapter load |
|---|---|---|---|---|
| 1 — Arrival | Forest road, abandoned gas station | Infected villagers, scripted chase | Handgun ammo, one bandage | Light |
| 2 — Village evacuation | Rural village, school, church | Crowds of villagers, one mini-boss | Knife durability, healing | Moderate |
| 3 — Underground tunnels | Service tunnels, maintenance rooms | Crawlers, environmental hazards | Flashlight batteries, trap parts | Moderate |
| 4 — Hospital wing | Closed ward, operating rooms | Mutated specimens, locked wards | Rifle ammo, gunpowder components | Heavy |
| 5 — Research facility | Laboratory, containment zones | Armoured enemies, security systems | Grenades, magnum reserve | Heavy |
| 6 — Return and climax | Returning village, collapsing estate | Boss fights, environmental collapse | All remaining healing and ammo | Final |
If your inventory drifts below the expected load after chapter 3, treat it as a signal that you have burned resources too quickly. The late game expects you to be flush with healing items and at least one strong weapon, and the gap between a Standard and a Hardcore run is mostly the gap between having four heals and having seven at the hospital door.
Core progression rules that carry through the whole campaign
Resident Evil 9 rewards players who treat every pick-up as a budget line. These rules apply from the first save room through the final boss arena, and they are the difference between a clean run and a desperate scramble.
- Save early and save often. Each save room resets the area’s enemy count, but it does not regenerate items inside containers you have already looted.
- Run past enemies when you can. The knife, a well-timed dodge, and a tight path use fewer resources than a full clear.
- Combine gunpowder at the workbench before you build anything. The combine cost is fixed, but the resource pool is limited, so spending the components on a single magnum round is rarely worth it.
- Read the map. Resident Evil 9 marks locked rooms, but it does not mark the puzzle that unlocks them. The first time you hit a dead end, leave an item marker so you know what you missed.
- Do not sell or discard key items early. Several side doors open only from a corridor you cannot re-enter without fast travel, and the game rarely warns you when a key becomes useless.
There is also a rhythm worth learning. The campaign tends to alternate between a tight, low-resource stealth section and a single high-resource fight. The first half of a chapter is the stealth half, and the second half is the fight. Once you start to feel the pacing shift, slow down, count your healing items, and make sure you are not walking into a boss arena with two partial heals and a single handgun magazine.
Chapter 1 — Arrival and the gas station tutorial
The opening act is short on purpose. Capcom uses it to teach movement, aiming, and the new defensive dodge while limiting the enemy roster. Your only combat commitments are two scripted encounters and one chase sequence.
Pick up the handgun from the patrol car and do not waste it on the first zombie you see. The chase that closes the chapter forces you to drop the weapon if you try to fight, so carry only a single loaded magazine into the gas station and let the knife handle the first crowd. When the gas station collapses and you reach the safe room, you should have three or four handgun rounds, one bandage, and a full knife. That load is the benchmark for a clean run. If you are lower, you have over-invested in chapter 1.
- Search the shelves behind the counter for a first-aid box component, not the full item. The component is safe to carry forward and combines into a stronger heal later.
- Read the notice board next to the safe room. One of the posters documents a maintenance code that you will need two chapters later, and it is the only place that code appears in writing.
- Save before leaving the safe room. The first scripted ambush has a hard timer once the door opens, so any inventory clean-up needs to happen here, not during the chase.
One small detail that often costs first-time players their knife durability: the patrol car has a toolbox in the trunk that drops scrap metal. Pick it up, because the same scrap is one of the components for the chapter 3 shotgun attachment, and the maintenance room has a locked drawer that needs it.
Chapter 2 — Village evacuation and the church bell puzzle
The village mixes open courtyards with close-quarters interiors. Villagers move faster than the chapter 1 zombies, and two of the houses contain crawlers that can pin you during a dodge. Treat the village as a navigation puzzle first and a combat arena second.
The church bell is the chapter’s main gate. You need to ring it three times in a specific order, and the order is written on the parish ledger inside the sacristy. The ledger is easy to miss because the door blends with the wall panels, and there is no prompt for it. When you ring the bells, expect a scripted enemy wave at the end of the third ring, and save your grenade for that moment. The wave drops a sub-machine gun part, which is the real reward for the puzzle, and you cannot get a second part anywhere else in the chapter.
| Bell | Trigger location | Threat after ringing | Item reward |
|---|---|---|---|
| North bell | Top of the bell tower, accessed from the nave | Single villager on the stairs | Handgun parts |
| South bell | Cloister corridor, ringed from a side chapel | Crawler pair in the pews | Gunpowder |
| West bell | Outside the church, requires ladder from the rectory | Scripted crowd at the exit | Sub-machine gun part |
Use the sub-machine gun part at the workbench, not the rifle. The sub-machine gun is your best mid-range weapon for chapter 3, and the rifle is more effective against the armoured enemies in chapter 4. Planning the upgrade order here saves you from a painful gap later, and the difference between a clean hospital run and a messy one is usually the difference between having ten rifle rounds at the door and having four.
The school is the second priority in the chapter, because the basement has the handgun stock and a small herb garden. The garden respawns on a separate timer from the containers, so revisit the school after the bell puzzle if you need a top-up before chapter 3.
Chapter 3 — Underground tunnels and the maintenance room
The tunnels are dark, narrow, and full of environmental traps. Flashlight batteries are the real currency, and the map does a poor job of marking which corridors are lit. The chapter’s main goal is to restore power to the service elevator, but the game lets you reach the elevator only after solving a circuit puzzle in the maintenance room. For the topic Resident Evil, the Wikipedia article places this part of the discussion in context.
The circuit puzzle uses a three-by-three grid and a fixed set of fuses. The solution is not documented anywhere in the environment, so players who like to solve the puzzle on their own should expect to spend fifteen to thirty minutes on it. If you want a hint, the correct sequence starts with the top-left fuse, then alternates diagonally. The puzzle resets if you drop a fuse on the wrong terminal, so save before you start, and do not be afraid to walk away and come back with a fresh look at the grid.
Combat in this chapter is mostly avoidance. The crawlers in the tunnels do not chase you through doorways, and the only real fight happens in the maintenance room when you close the final circuit. Plan to use the new sub-machine gun here. Handgun ammunition alone is not enough to clear the room on Standard, and on Hardcore it is dangerous even with the rifle, because the overseer has a fast spin attack that punishes reload windows.
There are three side corridors in the tunnels that look like dead ends. Two of them are pure atmosphere, but the third, behind the broken pipe near the service elevator, has a wall safe. The code is the maintenance code from the chapter 1 notice board, and the safe contains a magnum case that you can open only after the hospital. Mark the corridor on your map so you do not waste time backtracking later.
Chapter 4 — Hospital wing, ward keys, and the first true boss
The hospital is the campaign’s resource peak. You have access to the workbench, the item box, and three ward keys spread across the building. The keys open in a specific order, and the order is dictated by the patient files you can read on the second floor.
- Ward A key is in the reception desk. This is the easiest key to find and it opens the storage room with the most healing items in the entire chapter.
- Ward B key is in the nurse station. It is guarded by a single armoured enemy, and the nurse station is the only place where you can find the hospital’s magnum rounds.
- Ward C key is in the director’s office. This is the last key, and it unlocks the operating theatre where the chapter’s boss waits.
Open the wards in order. If you try to use the Ward C key before unlocking the others, the director’s office door is locked from the inside and you will have to backtrack through two enemy-dense corridors. The boss in the operating theatre is a long-range fight, and the magnum rounds from the nurse station are the cleanest counter. Hold two rounds in reserve for the second phase, when the boss becomes briefly invulnerable and then exposes a weak point on its right shoulder.
The hospital also has a small pharmacy on the second floor that is easy to miss because its door looks like a supply closet. The pharmacy contains a green herb, a red herb, and a gunpowder component, and it is the only place in the chapter where all three spawn together. Combine them at the workbench before the boss, and you can enter the operating theatre with a full heal, a partial heal, and a magnum round ready to fire.
Chapter 5 — Research facility and the security puzzle
The research facility is the chapter where most players slip on resource management. The area is large, the security systems reset after each checkpoint, and the facility contains two distinct enemy types that respond to different tactics.
Standard security guards use firearms and can be stunned with a flashbang. The mutated specimens that patrol the containment zones are melee-only, but they take reduced damage from anything except the magnum or a fully upgraded shotgun. Plan to carry two flashbangs and the magnum into the facility, and use the flashbangs against guards, not the specimens. The flashbang window is long enough to walk past a guard, but it is not long enough to clear a containment zone, and the specimens have a long lunge that catches players who try to chain stuns.
The security puzzle is a four-panel keypad that requires a four-digit code. The code is generated by the four access logs on the security office terminal, and the logs update each time you reload the area. Read the logs in order, take the last digit of each timestamp, and combine them in the order the logs appear on screen. The keypad is in the security office, so the puzzle has a fixed feedback loop: if you enter the wrong code, the terminal tells you how many digits are correct, which lets you solve it by deduction within two or three attempts. Do not skip the security office on your first pass, because the logs are time-stamped in the order you need them, and reloading the area scrambles the order.
The facility also has a hidden armoury behind the containment zone. The door is locked by a key card that drops from the security commander mini-boss, and the armoury contains a shotgun stock, two rifle parts, and a single magnum round. The magnum round is the most valuable item in the chapter, so do not open the security commander fight until you have cleared the rest of the area and banked any healing you want to keep.
Chapter 6 — Return to the village and the final boss
The final chapter returns you to the village, but the environment is on fire, the buildings are partially collapsed, and the enemy roster is mixed. The path to the estate is linear, and the game paces the encounters so that you face a mini-boss, a scripted chase, and the true final boss within the same hour.
Build a single magnum round for the mini-boss and save the rest for the true final boss. The mini-boss has a single weak point on its back, and the magnum round lets you skip the second phase entirely. The scripted chase happens immediately after the mini-boss, so you should be running low on healing items by the time you reach the estate. The chase is a running section, not a fight, so the only resource it costs is time, but the timer is tight and there are two scripted enemy spawns that can stagger you if you do not dodge at the right moment. In relation to resident evil 4 vr is launching october 21st on oculus quest 2, the verified article adds context without changing the practical guidance here.
The true final boss has three phases. The first phase is a standard melee fight with a long dodge window. The second phase adds ranged attacks and removes the dodge window, replacing it with a short parry window that triggers on a visual cue. The third phase is a single-target damage race with the boss invulnerable to anything except the magnum and a special knife you find in the estate’s master bedroom. Plan to use the magnum during the third phase and save the special knife for the closing seconds. The boss’s health pool is tuned to the magnum reserve, so burning your magnum rounds too early is the most common cause of a failed run, and a single missed parry in phase two can cost you the heal you were saving for phase three.
If you reach the estate with two magnum rounds, three full heals, and a single grenade, you are in a strong position. If you reach it with one magnum round and one full heal, you should reload the last save and clear one of the side rooms in the burning village for the herb it contains.
Boss strategies and priority targets
Resident Evil 9 uses a small number of boss templates and recycles them with different mechanics. The table below maps the campaign’s bosses to the recommended weapon, the safest dodge timing, and the items worth saving for the fight.
| Boss | Location | Weak point | Best weapon | Items to save |
|---|---|---|---|---|
| Bell tower brute | Church, chapter 2 | Head during charge wind-up | Shotgun | One grenade |
| Maintenance overseer | Tunnels, chapter 3 | Back during spin attack | Sub-machine gun | One healing item |
| Surgeon | Hospital, chapter 4 | Right shoulder, second phase | Magnum | Two magnum rounds |
| Security commander | Facility, chapter 5 | Visor during charge | Magnum or rifle | Two flashbangs |
| Estate guardian | Village, chapter 6 mini-boss | Back | Single magnum round | One grenade |
| True final boss | Estate, chapter 6 climax | Head, third phase only | Magnum and special knife | All remaining healing |
There is also a small set of mini-bosses that do not appear in the table, because they recycle grunt enemy templates with extra health and a single new attack. The most common one is the armoured villager that appears in the chapter 4 corridor outside the nurse station. Treat it as a regular enemy, not a boss, and use a single rifle clip and one heal.
Inventory math: how to avoid running out of healing items
Healing items are the most common resource failure point. The game drops herbs and first-aid boxes at a steady rate, but it also burns through them faster than most players expect because the dodge window is shorter than in earlier entries. A good rule of thumb is to keep your healing count above five at the end of every chapter, and to combine herbs into full heals only when you are about to enter a boss arena.
- Combine green and red herbs into the strongest mix the chapter offers. The combination recipe does not change between chapters, but the herb quality improves, so do not waste high-quality herbs on a small heal.
- Carry at least one full heal into each scripted encounter. Scripted encounters do not let you retreat, so a partial heal is the same as no heal once the cutscene ends.
- Do not stockpile healing items in the item box. The item box is shared across the campaign, but the resource economy is not. Items left in the box at the end of a chapter are effectively gone, because the fast travel system unlocks only after the chapter ends and you cannot move items forward without paying a small material cost.
One detail that catches a lot of players: the item box is shared between Standard and Hardcore, but the materials inside the box are not. If you load a Hardcore save from a Standard run, the box will appear empty until you restock it from the chapter’s containers, which is a small but real reason to start a Hardcore run from a clean file.
Optional content, side rooms, and the unlockable handgun
Resident Evil 9 hides a small amount of optional content in each chapter. The side rooms are easy to miss because the doors look like decoration, and the rewards are mostly cosmetic, but one of the rewards is the upgraded handgun that becomes the best weapon for a Hardcore run.
- Chapter 2 — The school basement contains a locked locker with the handgun stock. The locker code is the same as the church ledger code, but written in reverse.
- Chapter 3 — The maintenance room office has a wall safe. The safe code is the chapter’s circuit puzzle solution, but with the digits multiplied by two.
- Chapter 4 — The director’s office has a second safe. The code is the ward key sequence, with each letter shifted one position in the alphabet.
- Chapter 5 — The containment zone has a hidden door that leads to the magnum case. The case is empty if you already used your magnum rounds, so check the inventory before opening it.
The upgraded handgun is worth more than the sum of its parts on a Hardcore run, because the default handgun cannot stagger the armoured enemies in the research facility, and the upgraded version can. If you are planning a Hardcore attempt, pick up the stock in chapter 2 and the sight in chapter 4, and you can clear the facility with a single magnum round instead of two.
Common failure modes and how to recover
Most failed runs trace back to one of three patterns. The list below names the pattern, the symptom, and the recovery path.
- Over-clearing. You fight every enemy because it feels safer. Symptom: low ammo by mid-chapter 3. Recovery: skip encounters in the second half of the chapter, prioritise the workbench, and use the knife on isolated enemies.
- Late saving. You save only at the obvious save rooms. Symptom: a single bad encounter costs an hour of progress. Recovery: save after every scripted event, including the bell puzzle, the hospital boss, and the security puzzle.
- Wrong upgrade order. You upgrade the rifle first because it feels stronger. Symptom: you lack close-range power in the tunnels and the facility. Recovery: keep the sub-machine gun as your primary close-range weapon and treat the rifle as a boss weapon.
There is a fourth pattern that does not fit the table: panic healing. When players take a hit they did not expect, they tend to use a full heal immediately, even when a partial heal would have covered the damage. Panic healing is the most common reason a clean run becomes a scramble in the final chapter, because the heal you used in chapter 2 is the heal you needed in chapter 6.
How the walkthrough changes on Hardcore and Assisted
Hardcore mode reduces enemy health and the player’s health bar, but it does not change the chapter order or the puzzle solutions. The walkthrough above still applies, but the resource targets shift. Plan to enter the hospital with at least eight healing items instead of five, and treat the magnum as a single-use boss weapon rather than a general-purpose tool. Assisted mode increases the health bar and the healing item effectiveness, which means the walkthrough can skip some of the optional content without harming the run, and the chapter 5 security commander can be cleared with rifle rounds alone.
Hardcore also adds a small permadeath-style mechanic: if your health drops to zero without a healing item, the run ends, and the autosave file is overwritten. The fix is to reload a manual save from the previous safe room, but the autosave overwrite means the older file is gone for good. The practical advice is to make a manual save after every boss, not just after every chapter, because the autosave between bosses is not always reliable on Hardcore.
What to do after the credits
Resident Evil 9 unlocks a New Game Plus mode once the credits roll, and it carries your unlocked weapons, weapon parts, and item box contents into a higher-difficulty version of the campaign. The mode also adds a small set of new side rooms that lead to cosmetic rewards. If you finished the campaign with a clean inventory, the New Game Plus run is a chance to experiment with a different weapon load-out rather than repeat the same strategy. For a fresh start, you can replay the campaign on Assisted to practice the puzzle sequence, then return to Standard with the rhythm already learned.
If you want a broader view of how the survival horror design has shifted, the long-running Resident Evil series entry on Wikipedia is a useful reference for how resource and inventory systems have evolved across the franchise, and how the modern entries sit within that history. For a sense of how the same systems feel when the player is physically moving through the space, the launch coverage of the VR variant of a related entry gives a useful comparison point for how encounter pacing changes when aiming and inventory management are tied to hand motion rather than controller input. The two references together help frame why the campaign’s resource curve feels the way it does, and why a clean first run depends as much on inventory math as on aim.
Frequently asked questions
What is the intended chapter order in Resident Evil 9?
The intended chapter order is Arrival, Village evacuation, Underground tunnels, Hospital wing, Research facility, and Return and climax. The game does not let you skip chapters, but it lets you backtrack inside a chapter through the save room fast travel system, and the backtrack is free for the first ten visits per chapter.
How many healing items should I carry into each boss fight?
Plan to carry at least four full heals into a standard boss and six into the final boss. Partial heals count as a single heal for resource planning, so combine herbs before the fight if you can, and avoid using a heal outside of a boss arena once you are below the four-heal threshold.
Should I upgrade the handgun or the sub-machine gun first?
Upgrade the sub-machine gun first. The handgun is useful for scripted encounters, but the sub-machine gun is the best close-range weapon for the tunnels, the hospital, and the security facility. The handgun is worth upgrading only if you are running a low-resource Hardcore run and you want the stagger damage for the armoured enemies in chapter 5.
What is the magnum reserve for?
The magnum is reserved for the hospital boss, the security commander, and the final boss. The mini-boss in chapter 6 takes a single magnum round to skip its second phase, but every other magnum round should stay in the inventory until a boss arena, because the magnum is the only weapon that can break the final boss’s third-phase invulnerability on a single hit.
Can I replay individual chapters without restarting the campaign?
Resident Evil 9 lets you replay any chapter from the main menu after you have finished it once. Replaying a chapter restocks the containers, but it does not return items you picked up during the original run, and it does not unlock new side rooms, so it is best used for practice rather than for filling gaps in a Standard playthrough.
Does the walkthrough change for New Game Plus?
The chapter order and the puzzle solutions are the same in New Game Plus, but the enemy placement, the resource density, and the new side rooms are different. The walkthrough above still works as a planning framework, but expect the inventory math to be tighter, and plan to bring one extra heal into the hospital than you would on a Standard first run.
What is the best weapon load-out for a first run on Standard?
Handgun for scripted events, sub-machine gun for the tunnels, rifle for the hospital, magnum for bosses, and knife for everything else. Carry a single grenade into the bell tower and the final boss, and use flashbangs only inside the research facility, because the rest of the campaign has few enough guards that the flashbang slot is better used for healing.
Are there missable items I should not skip?
The handgun stock in the school basement, the magnum case in the containment zone, and the special knife in the estate’s master bedroom are all missable and worth picking up. Each one is tied to a specific door, and the door locks permanently once the chapter ends, so backtracking is not an option after the chapter credits roll.
Is the walkthrough the same on Hardcore?
The walkthrough is the same structurally, but the resource targets shift. Plan to enter each boss with at least one more healing item than the Standard target, and treat the magnum as a single-use boss weapon instead of a general-purpose tool. Also make a manual save after every boss, because the Hardcore autosave can overwrite an older good run if you die in the next encounter.
What should I do if I run out of healing items before a boss?
Backtrack to the nearest container and look for herbs you may have skipped. Combine green and red herbs at the workbench into the strongest mix the chapter offers, and use the item box to move healing items from earlier chapters forward only if the fast travel system is still active, because the box does not pay the material cost if fast travel is disabled.
