Inventory Mechanics

The Inventory is a mechanic in SCP: Secret Laboratory used to limit the amount of items and ammo a person can hold. The Inventory allows the player to store items and pull them out for use by pressing Tab ↹ to open the inventory. The player can also uses hotkeys to pull out an item of a certain type.

Ingame

Players can only hold a certain amount of a type of item. The max limit changes depending on the item type, and in the case of ammo, changed based on armor worn.
Server owners can change the item limit and ammo limit in the gameplay config.

Item Limits

Item limits can be set to any value from 0 to 8.
Setting a limit to 0 makes it impossible for that type of item to be picked up.
The Grenade limit is based on if the player is wearing armor or not.

• Three SCP Items (SCP-018, SCP-207, SCP-268 and SCP-500)
• Three Keycards
• Three Medical Items (Adrenaline, First Aid Kit and Painkillers)
  • Players wearing Heavy Armor can hold up to 4 Medical Items.
• One Firearm (COM-15, COM-18, MTF-E11-SR, FSP-9, Crossvec, Ak, Logicer, Revolver and Shotgun)
  • Players wearing Guard or Combat Armor can hold 2 Firearms
  • Players wearing Heavy Armor can hold up to 3 Firearms.
• 2 Grenades (Flash Grenade and Fragmentation Grenade)
  • Players wearing Combat Armor can hold up to 3 Grenades.
  • Players wearing Heavy Armor can hold up to 4 Grenades.
• 1 Radio
• 1 Micro HID
• 1 Armor

Flashlights and Coins have no item limit, and are only limited by the eight inventory spaces a person has.

Ammo Limit

The ammo limit is based on what armor the player is wearing.
Ammo limits can be set at any values from 0 to 65.5k.
Unlike with items, setting the value to 0 makes the limit infinity.
Throughout the Site-02, rounds of ammo used for Foundation issued weapons, such as the Crossvec or MTF-E11-SR can be found. Ammo used for Chaos Insurgency firearms can not be found within Site-02, so the only way to get more ammo for them is via SCP-914 or collecting it off fallen Chaos Insurgents.

• 9x19mm - COM-15, COM-18, Crossvec and FSP-9
• 5.56x45mm - MTF-E11-SR
• 7.62x39mm - Logicer and AK
• .44 Mag - Revolver
• 12/70 Buckshot - Shotgun

The default Ammo Limit for players without Armor:

• 9x19mm - 30 Rounds
• 5.56x45mm - 40 Rounds
• 7.62x39mm - 40 Rounds
• .44 Mag - 18 Rounds
• 12/70 Buckshot - 14 Rounds

Ammo Limit for Light Armor:

• 9x19mm - 60 Rounds
• 5.56x45mm - 40 Rounds
• 7.62x39mm - 40 Rounds
• .44 Mag - 18 Rounds
• 12/70 Buckshot - 14 Rounds

Ammo Limit for Combat Armor:

• 9x19mm - 160 Rounds
• 5.56x45mm - 120 Rounds
• 7.62x39mm - 120 Rounds
• .44 Mag - 48 Rounds
• 12/70 Buckshot - 54 Rounds

Ammo Limit for Heavy Armor:

• 9x19mm - 200 Rounds
• 5.56x45mm - 200 Rounds
• 7.62x39mm - 200 Rounds
• .44 Mag - 68 Rounds
• 12/70 Buckshot - 74 Rounds

Hotkeys

Hotkeys are a key bidding option where players can hit a key to pull out an item of a certain type. Each item type that has a hotkey button has a priority system, this affects what item the player will take out if they have multiple of the same type. So if the player has two Keycards, the player will always pull out the Keycard higher in the priority list. With the "Smart Hotkeys" option enabled, the priority system of items will change completely. Pressing the same hotkey over and over again will cycle between similar items of in the player's inventory. The only exception to this rule are firearms.

Keycards

Default Key: Left Control
The priority list of Keycards. If the "Smart Hotkeys" option is enabled, the player will pull out the best Keycard that opens a nearby keycard door, even if they have a Keycard of a higher priority. For example, if the player has both a Zone Manager Keycard and a Scientist Keycard and is near SCP-096's Containment Chamber, the player will pull out the Scientist Keycard because it can open the door, despite the fact Zone Manager is higher in the priority list. Another example, if the player has the Research Supervisor Keycard and Guard Keycard, and is near to the Ammunition Armory, the player will pull out the Guard Keycard because it can open that door, despite Research Supervisor being higher on the list. The "Smart Hotkeys" option will also only bring out Keycards that can open said door until the player gets out of range.

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Medical Item

Default Key: X
The priority list of Medical Items. If the "Smart Hotkeys" option is enabled, the player will pull out a medical item based on the situation they are in. There are three types of main types situations, each of which have three sub situations based on HP. In total, there are nine different priority list if "Smart Hotkeys" is enabled. Interesting, SCP-207 will count as a medical item, but only if the player has "Smart Hotkeys" enabled, this is due to the fact SCP-207 heals a small amount of health.
The Priority List are as follows:

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Grenades

Default Key: G
The priority list of Grenades. Nothing happens if the player has "Smart Hotkeys" enabled.

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Weapons

Default Key: Num 1 (Primary)
Default Key: Num 2 (Secondary)
Weapons have two hotkeys, one for "Primary" and one for "Secondary". What the game sees as primary and secondary is based on the order of the weapons in your inventory. The weapon closest to the top most right slot following a clockwise pattern is considered your primary. Hitting the Primary Weapon Hotkey will only draw it, while hitting the Secondary Hotkey will only draw the other firearm in your inventory. If the player has "Smart Hotkeys" enabled, then a priority list is used instead for picking your primary weapon.

Throwing

The player can throw any item they are holding, depending on the item different effects can happen, with some items being able to break glass if they are heavy enough and thrown at a fast enough speed. Thrown Keycards are able to open/close any Keycard required door provided they hit the NFC Reader next to the door.