Inhibitors are the only way to increase your maximum Stamina and Health. Increasing those attributes is important as it unlocksaccess to some of your Skills. Each upgrade requires 3 Inhibitors.

In total, you can gather 126 inhibitors in the game. The first 3 you will get automatically from Hakon right after you appear in Old Villedor. More inhibitors can be found in GRE Crates hidden inside GRE Quarantine Buildings and GRE Anomalies locations. Additional crates can also be discovered while exploring off the beaten path.

Locations on Old Villedor

1Inhibitor x 1

Enter the building through a window at the top floor. At some point you will have to go through a ventilation duct.

Inhibitor x 1

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2Inhibitor x 1

In the same crate as the Military Airdrop THB-04B (4).

Inhibitor x 1

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3Inhibitor x 1

It's a reward for completing "The First Biomarker (2)" side quest.

Inhibitor x 1

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4Inhibitor x 1

It's in the Dark Hollow (1). You visit this place during the side quest "All in the Family (1) (Night)"

Inhibitor x 1

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5Inhibitor x 1

The crate is located inside a military container. You can get inside through a hatch on the roof.

Inhibitor x 1

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6Inhibitor x 1

It's in the Metro: Hayward Square (2) (Night) station. On the table in the room with bed and stash.

Inhibitor x 1

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7Inhibitor x 1

The inhibitor is in the safe in the Nightrunner's Hideout. The code to open it is 1-0-1.

Inhibitor x 1

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8Inhibitor x 1

Inhibitor x 1

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9Inhibitor x 1

Inhibitor x 1

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10Inhibitor x 2

You will pass this way when looking for Maya during the main story quest "The Only Way Out".

Inhibitor x 2

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11Inhibitor x 2

Inhibitor x 2

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12Inhibitor x 2

GRE Anomaly C-A-05 (1)

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13Inhibitor x 2

You will visit this place while doing the main quest "Unruly Brother".

Inhibitor x 2

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14Inhibitor x 2

It's inside the Horseshoe Water Tower (1).

Inhibitor x 2

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15Inhibitor x 2

GRE Anomaly C-A-22 (4)

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16Inhibitor x 2

GRE Anomaly C-A-01 (1)

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17Inhibitor x 3

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18Inhibitor x 3

You will find the crate on the upper floor of the building. You will visit this room during the main story quest "Into the Dark".

Inhibitor x 3

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19Inhibitor x 3

Finding this chest is an objective of the main story quest "Markers of Plague".

Inhibitor x 3

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20Inhibitor x 3

Story-related. Hakon will inject you with these inhibitors during the cutscene at the beginning of the main story quest "Getting Stronger".

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21Inhibitor x 4

Center for Stage IV THV Study (4)

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22Inhibitor x 4

THV Genomics Center (1)

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Locations on Central Loop

23Inhibitor x 1

It's in the same crate as the Military Airdrop THB-1L0 (4).Inhibitor x 1

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24Inhibitor x 1

It's outisde the building, on one of the red platforms.

Inhibitor x 1

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25Inhibitor x 1

It's in the Metro: Waterside (2) (Night) station. On the table in the room with bed and stash.

Inhibitor x 1

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26Inhibitor x 1

It's in a small safe. The code needed to open the safe is 3-1-3.

Inhibitor x 1

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27Inhibitor x 1

In one of the rooms in the lower part of the building you will visit on your way to the top.

Inhibitor x 1

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28Inhibitor x 1

The crate is in the room on top floor of the building.

Inhibitor x 1

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29Inhibitor x 1

The inhibitor can be found in the Military Airdrop THB-NW4 (2) crate.

Inhibitor x 1

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30Inhibitor x 1

The crate is located in a room on the top floor of the building.

Inhibitor x 1

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31Inhibitor x 1

It's inside the Dark Hollow (3).

Inhibitor x 1

Inhibitor x 1

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32Inhibitor x 1

The crate is located in a small room slightly below the roof of the VNC Tower building. To get there you can drop down from the roof.

Inhibitor x 1

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33Inhibitor x 1

The crate is in the Saint Paul Electrical Station (3) building, in a flooded room on the lowest level.

Inhibitor x 1

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34Inhibitor x 1

It's inside the Metro: Newalls Crossing (2) (Night) station.

Inhibitor x 1

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35Inhibitor x 1

The safe containing the inhibitor is in a room at the top of the church tower. The code to open it is 4-4-4.

Inhibitor x 1

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36Inhibitor x 1

It's in the Metro: King William Bridge (2) station. On the table in the room with bed and stash.

Inhibitor x 1

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37Inhibitor x 1

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38Inhibitor x 1

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39Inhibitor x 1

It's in the river, under the bridge.

Inhibitor x 1

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40Inhibitor x 1

It's in the river, near the bridge.

Inhibitor x 1

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41Inhibitor x 1

It's inside the Military airdrop THB-UT0 (3) crate.

Inhibitor x 1

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42Inhibitor x 1

It's in the Metro: VNC Tower (4) station. On the table in the room with bed and stash.

Inhibitor x 1

Inhibitor x 1

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43Inhibitor x 1

It's in the Metro: Cathedral (3) (Night) station. In the room with bed and stash.

Inhibitor x 1

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44Inhibitor x 1

It's in a safe. The code you need to open the safe is: 9-8-7.

Inhibitor x 1

Inhibitor x 1

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45Inhibitor x 1

It's in the same crate as the Military Airdrop THB-4UL (3).

Inhibitor x 1

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46Inhibitor x 1

It's in a small safe. Code is 3-1-4.

Inhibitor x 1

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47Inhibitor x 1

It's in the Metro: South Loop (5) station. In the room with bed and stash.

Inhibitor x 1

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48Inhibitor x 1

The crate is under the bridge.

Inhibitor x 1

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49Inhibitor x 1

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50Inhibitor x 1

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51Inhibitor x 1

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52Inhibitor x 1

The crate is in the basement. The entrance is in the main building.

Inhibitor x 1

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53Inhibitor x 1

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54Inhibitor x 1

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55Inhibitor x 1

Inhibitor x 1

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56Inhibitor x 2

GRE Anomaly C-A-83 (3)

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57Inhibitor x 2

Inhibitor x 2

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58Inhibitor x 2

GRE Anomaly C-A-79 (2)

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59Inhibitor x 2

In the Metro: Downtown Court (Story).

Inhibitor x 2

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60Inhibitor x 2

GRE Anomaly C-A-78 (3)

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61Inhibitor x 2

You visit this place during the "Orders" main story quest.

Inhibitor x 2

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62Inhibitor x 2

GRE Anomaly C-A-91 (4)

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63Inhibitor x 2

GRE Anomaly C-A-55 (3)

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64Inhibitor x 2

GRE Anomaly C-A-67 (5)

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65Inhibitor x 2

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66Inhibitor x 2

GRE Anomaly C-A-34 (5)

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67Inhibitor x 2

Inhibitor x 2

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68Inhibitor x 2

GRE Anomaly C-A-23 (5)

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69Inhibitor x 2

GRE Anomaly C-A-56 (5)

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70Inhibitor x 3

The crate is located in the bedroom of Lawan's apartment. You will get here while doing the main quest "The Shoe".

Inhibitor x 3

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71Inhibitor x 3

The crate is located on the top floor of a 'side' skyscraper. you will get here while doing the main quest "Broadcast".

Inhibitor x 3

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72Inhibitor x 4

GRE Vaccine Lab (2)

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73Inhibitor x 4

GRE Experimental Research (3)

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74Inhibitor x 4

THV-GenMod Development Center (4)

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75Inhibitor x 4

THV Advanced Care (5)

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