SCP: Facility Bridge

Mod Version: 1.1.0
Minecraft Version: 1.20.1 (Forge)
Last Updated: October 14, 2026
Creator: @TontonGG8366 (TheUncleSK)

Origin of the Project

SCP: Facility Bridge was developed to address a common challenge when building large SCP facilities in modded Minecraft: different SCP mods provide excellent building materials, security doors, and containment equipment, but their systems are not necessarily designed to work together.

For example, a facility might use the C.A.S.S.I.E. system from SCP: Facility while relying on doors and construction blocks from SCP: Overtime or SCP: Lockdown.

Without additional compatibility features, these systems may operate independently, limiting the possibilities for advanced security mechanisms and automated containment procedures.

SCP: Facility Bridge was created to help connect these systems and provide unified containment-zone management.

The project was developed with large, detailed SCP facilities in mind, particularly environments requiring multiple security zones, coordinated lockdown procedures, and more realistic mob behavior.

Main Features

C.A.S.S.I.E. Integration

SCP: Facility Bridge provides compatibility features for the C.A.S.S.I.E. system associated with SCP: Facility.

It introduces containment management functionality designed to work alongside SCP-themed facility structures from other supported mods.

By extending the interaction between these systems, the mod helps create a more unified security environment across different containment zones.

Zone-Based Lockdown System

SCP: Facility Bridge implements a lockdown system with three main security zones :

- LCZ — Light Containment Zone: Areas dedicated to lower-risk containment and general facility infrastructure.
Marked by the following blocks : 

scpo:facility_big_tile_floor
scpo:facility_big_tile_floor_slab
scpo:facility_big_tile_floor_stairs
scpo:facility_black_big_tile_floor
scpo:facility_black_big_tile_floor_slab
scpo:facility_black_big_tile_floor_stairs
scpo:facility_black_tile_floor
scpo:facility_black_tile_floor_slab
scpo:facility_black_tile_floor_stairs
scpo:facility_brick_slab
scpo:facility_brick_stairs
scpo:facility_brick_wall
scpo:facility_bricks
scpo:facility_bricks_bottom
scpo:facility_bricks_top
scpo:facility_checkered_tile_floor
scpo:facility_checkered_tile_floor_slab
scpo:facility_checkered_tile_floor_stairs
scpo:facility_dark_floor
scpo:facility_dark_floor_slab
scpo:facility_dark_floor_stairs
scpo:facility_light_floor
scpo:facility_light_floor_slab
scpo:facility_light_floor_stairs
scpo:facility_table
scpo:facility_tile_floor
scpo:facility_tile_floor_slab
scpo:facility_tile_floor_stairs
scpo:facility_wall
scpo:facility_wall_bottom
scpo:facility_wall_divider
scpo:facility_wall_slab
scpo:facility_wall_stairs
scpo:facility_wall_top
scpo:facility_wall_wall

- HCZ — Heavy Containment Zone: High-security containment sections requiring stricter access control.
Marked by the following blocks : 

scpo:hc_metal_panel_floor
scpo:hc_metal_panel_floor_stairs
scpo:hc_metal_panel_slab
scpo:hc_middle_block
scpo:hc_middle_block_slab
scpo:hc_middle_block_stairs
scplockdown:sublevel_wall_a
scplockdown:sublevel_wall_b
scplockdown:sublevel_wall_c
scplockdown:reinforced_sublevel_wall_a
scplockdown:reinforced_sublevel_wall_b
scplockdown:reinforced_sublevel_wall_c
scplockdown:metal_sublevel
scplockdown:sublevel
scplockdown:reinforced_sublevel
scplockdown:grate
scplockdown:ceiling_grate
scpo:hcz_wall
scpo:hcz_wall_slab
scpo:hcz_wall_stairs
scpo:hcz_wall_wall
scpo:metal_floor
scpo:metal_floor_slab
scpo:metal_floor_stairs
scpo:sub_level_1_checkered_top
scpo:sub_level_1_checkered_top_slab
scpo:sub_level_1_checkered_top_stairs
scpo:sub_level_1_floor
scpo:sub_level_1_floor_lines_slabs
scpo:sub_level_1_floor_lines_stairs
scpo:sub_level_1_floor_slab
scpo:sub_level_1_floor_stairs
scpo:sub_level_1_tile
scpo:sub_level_1_tile_slab
scpo:sub_level_1_tile_stairs
scpo:sub_level_1_wall_filler
scpo:sub_level_1_wall_filler_slab
scpo:sub_level_1_wall_filler_stairs
scpo:sub_level_1_wall_filler_wall
scpo:sublevel_1_floor_lines

- EZ — Entrance Zone: Administrative, security, and entrance areas of the facility.
Marked by the following blocks : 

scpo:ez_bottom_block
scpo:ez_top_block
scpo:ez_middle_block
scpo:ez_tile_floor
scpo:ez_tile_floor_slab
scpo:ez_tile_floor_stair
scpo:ez_checkered_tile_floor
scpo:ez_checkered_tile_slab
scpo:ez_checkered_tile_stair
scpo:ez_ceiling_tile
minecraft:polished_deepslate
scplockdown:office_bottom
scplockdown:office_top
scplockdown:medical_bottom
scplockdown:medical_top
scpo:e_zwall
scpo:e_zwallbottom
scpo:e_zwalltop
scpo:ez_ceiling_tile_grate
scpo:ez_ceiling_tile_grate_slab
scpo:ez_ceiling_tile_grate_stairs
scpo:ez_ceiling_tile_slab
scpo:ez_ceiling_tile_stairs
scpo:ez_wall_slab
scpo:ez_wall_stairs
scpo:ez_wall_wall

Each zone can be managed independently, allowing facility operators to activate or deactivate lockdowns according to their needs.

Key Features :

- Independent lockdown management for LCZ, HCZ, and EZ.

- Lockdown states stored in world data.

- Integration with compatible facility doors.

- Security restrictions affecting supported mob-door interactions.

This allows players to create security procedures for different areas without necessarily locking down the entire facility.

Door Compatibility

SCP: Facility Bridge includes compatibility logic for doors from :

- SCP: Overtime
scpo:bladewood_door
scpo:blast_door_josie_closed
scpo:blast_door_josie_hitbox_closed
scpo:blast_door_josie_hitbox_open
scpo:blast_door_josie_open
scpo:cafeteria_door
scpo:containment_gate_closed
scpo:containment_gate_open_hitbox
scpo:containment_gate_opened
scpo:containment_gate_solid_frame
scpo:containment_gate_solid_hitbox
scpo:everything_door
scpo:facility_door_closed
scpo:facility_door_hitbox_closed
scpo:facility_door_hitbox_open
scpo:facility_door_opened
scpo:heavy_door_closed
scpo:heavy_door_hitbox_closed
scpo:heavy_door_hitbox_open
scpo:heavy_door_opened
scpo:large_door_closed
scpo:large_door_hitbox
scpo:large_door_open_hitbox
scpo:large_door_opened
scpo:mist_wood_door
scpo:office_door
scpo:putrid_wood_door
scpo:storage_door
scpo:unity_door_red_closed
scpo:unity_door_red_hitbox_closed
scpo:unity_door_red_hitbox_open
scpo:unity_door_red_opened
scpo:unity_door_yellow_closed
scpo:unity_door_yellow_hitbox_closed
scpo:unity_door_yellow_hitbox_open
scpo:unity_door_yellow_opened
scpo:unity_office_door
scpo:yellow_door

- SCP: Lockdown
scplockdown:sliding_door
scplockdown:containment_door
scplockdown:magnetized_door
scplockdown:blast_door
scplockdown:scp002_door

This allows the mod's containment mechanisms to interact with supported door systems rather than relying exclusively on blocks from a single SCP mod.

Compatible doors can respond to the lockdown state of their associated containment zones.

Compatibility depends on the specific door type and its implementation.

Mob Door Interaction

One of the main features of SCP: Facility Bridge is its improved mob interaction system.

The mod allows mobs to interact with supported SCP facility doors, making containment sites more dynamic and immersive. However, you can disable this feature using the following commands (only in 1.2.0 or above):

/gamerule doSCPopendoor true
/gamerule doSCPopendoor false


When Lockdown Is Disabled :

- Mobs can open compatible facility doors.

- Mobs can pass through supported doors while navigating the facility.

- Creatures can move between compatible rooms and corridors.

- Door interactions allow for more natural mob movement throughout the facility.

When Lockdown Is Enabled :

- Compatible doors affected by the lockdown system become secured.

- Mobs can no longer open these doors through the mod's interaction system.

- Security restrictions are applied according to the affected containment zone.

- Normal mob-door interactions resume when the corresponding lockdown is disabled.

Zone-Based Behavior :

Mob accessibility is linked to the lockdown status of the corresponding security zone.

For example, activating a lockdown in the Heavy Containment Zone can restrict mob access through supported HCZ doors without necessarily affecting doors in the Light Containment Zone or Entrance Zone.

This system creates additional possibilities for SCP-themed gameplay, containment procedures, roleplay scenarios, and facility management.

Important: Mob interactions depend on the mob's AI behavior and the compatibility of the specific door type. Not every mob or door is guaranteed to support these interactions.

Facility Block Recognition

The mod includes block tags identifying compatible construction materials from SCP: Overtime and SCP: Lockdown.

These include building materials associated with :

- Light Containment Zone (LCZ)

- Heavy Containment Zone (HCZ)

- Entrance Zone (EZ)

- Supported security and lockdown doors

These tags help the mod recognize different parts of an SCP facility and support its compatibility mechanisms.

Lockdown Commands

SCP: Facility Bridge includes commands for controlling and monitoring containment lockdowns.

Examples:

/cassie lockdown lcz true

Activates the lockdown for the Light Containment Zone.

/cassie lockdown hcz true

Activates the lockdown for the Heavy Containment Zone.

/cassie lockdown ez false

Disables the lockdown for the Entrance Zone.

/cassie status

Displays the current lockdown status.

These commands allow authorized users to control containment security and manage zone-specific lockdown states.

Supported Mods

SCP: Facility Bridge is designed to work alongside the following Minecraft mods:

SCP: Facility

Provides the C.A.S.S.I.E. system used as a reference for the mod's containment management features.

SCP: Overtime

Provides SCP-themed construction materials, doors, and facility equipment that can interact with the bridge's compatibility systems.

SCP: Lockdown

Provides additional SCP-themed security doors, construction materials, and facility components supported by the mod.

These integrations are designed around optional mod dependencies.

SCP: Facility Bridge is not intended to replace any of these projects. Instead, it acts as a compatibility layer that helps their features work together.

Technical Information

Mod Name: SCP: Facility Bridge

Minecraft Version: 1.20.1

Mod Loader: Forge

Mod License: MIT

Project Categories:  Utility & QoL / API and Library / Server Utility

Who Is This Mod For?

SCP: Facility Bridge is primarily intended for :

- SCP Facility Builders: Players creating detailed research installations and containment complexes using multiple SCP mods.

- Adventure Map Creators: Builders designing interactive SCP facilities with security systems and containment procedures.

- SCP Roleplay Communities: Players looking for more immersive facility environments, mob interactions, and security mechanics.

- Multiplayer Server Administrators: Server owners who want to manage SCP-themed lockdown systems.

- Modded Minecraft Players: Anyone interested in improving compatibility between supported SCP-themed mods.

Whether you are building a small research installation or an extensive underground containment complex, SCP: Facility Bridge aims to make facility management more immersive and functional.

Important Information

SCP: Facility Bridge is an unofficial compatibility project.

It is not an official addon developed by the creators of SCP: Facility, SCP: Overtime, or SCP: Lockdown.

All original mods, their names, textures, models, and other assets remain the property of their respective creators and are subject to their applicable licenses.

SCP: Facility Bridge does not replace the original mods. Players must install the corresponding mods to access their content.

Compatibility may vary depending on the versions of the supported mods.

Certain features, including mob interactions with doors, depend on supported door implementations and mob AI behavior.

Logo Credits & Licensing

Logo Credits :

The project logo was generated with the assistance of OpenAI's image generation tools.

The illustration is promotional artwork and does not represent actual in-game footage.

SCP Attribution :

This project is inspired by the SCP Foundation collaborative fiction universe.

The SCP Foundation logo and applicable SCP-derived content are licensed under Creative Commons Attribution-ShareAlike 3.0 (CC BY-SA 3.0).

SCP Wiki: https://scp-wiki.wikidot.com/

SCP Licensing Guide: https://scp-wiki.wikidot.com/licensing-guide

Creative Commons License: https://creativecommons.org/licenses/by-sa/3.0/

The project logo is shared under CC BY-SA 3.0.

Disclaimer :

SCP: Facility Bridge is an unofficial fan-made Minecraft modification and is not affiliated with or endorsed by the SCP Wiki, the SCP Foundation community, or the creators of the supported Minecraft mods.