SCP Modern — Version 1.20-1.0-pre-beta-a

Minecraft 1.20 · Forge · Requires GeckoLib 4.4 or higher

This is the initial public pre-beta release of SCP Modern. The mod is under active development; some systems are incomplete and balance adjustments are expected in future iterations.

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Anomalous Entities

SCP-106 — The Old Man

A fully implemented hostile entity with a custom four-phase AI architecture comprising Wandering, Exploring, Hunting, and Tactical behavioral states. SCP-106 operates independently of the standard Minecraft goal system, using a manual physics engine with gravity, ground detection, and wall-climbing capabilities.

• Line-of-sight vision checks updated every 10 ticks, with a positional memory buffer tracking the last known locations of observed players.
• Emergence animation of 140 ticks upon initial spawn, rising from the ground.
• Player detection range of 48 blocks; autonomous exploration range of 28 blocks.
• Anti-stall system with stuck detection and dynamic waypoint regeneration (up to 16 waypoints).
• GeckoLib animations: idle, walk, emerge, grab.
• Periodic ambient sound events with randomized intervals.
• Attributes: 1000 HP · full knockback resistance.

SCP-173 — The Sculpture

A hostile entity whose movement is governed entirely by player observation. SCP-173 teleports instantly to any position within range whenever no player maintains direct line of sight.

• Integrated with the client-side blink system: the brief window during a player's blink grants SCP-173 an opportunity to reposition.
• Movement speed of 2.0 when unobserved, with jump height up to 3 blocks to navigate obstacles.
• Containment behavior: when placed inside a Containment Capsule block, SCP-173 enters a passive state and remains stationary.
• Instant-kill attack animation upon reaching a target.
• Targets players and hostile mobs; does not target other SCP-173 instances.
• Attributes: 1000 HP · 1000 attack damage · full knockback resistance.

SCP-999 — The Tickle Monster

A passive, non-hostile entity. Fully modeled and animated via GeckoLib.

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Blink System

A client-side blink simulation rendered as a screen overlay, mechanically tied to SCP-173's movement logic.

• Realistic blink cycle divided into closing, closed, and opening phases (approximately 10 ticks total).
• Randomized blink interval between 200 and 500 ticks.
• Can be enabled or disabled programmatically.
• State synchronized between client and server via a dedicated network packet.

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Foundation Rank System

A full personnel progression system comprising seven ranks, each associated with an experience threshold, a display color, and keycard access permissions.

Level	Rank	XP Required	Spawn Weight
1	D-Class	0	70%
2	Researcher	300	20%
3	Security Guard	900	10%
4	Senior Researcher	1,900	—
5	MTF Commander	3,900	—
6	Site Director	7,900	—
7	O5 Council	14,900	—

Ranks 4 through 7 carry no spawn weight and must be obtained through progression or server commands. Players are assigned a starting rank at spawn according to the weighted distribution above.

Additional rank system features:

• Colored nametags displayed above each player corresponding to their current rank.
• Dedicated rank HUD screen accessible via a configurable keybind.
• Keycard items for rank-gated access to doors and card readers.
• Server-side commands for rank management and assignment.
• Initial mission: First Contact — enter an SCP installation (+25 XP).

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Blocks and Decoration

Access and Containment

• Card Readers (clearance levels 1–5, plus an Omni variant) — grant or deny passage based on the player's keycard rank.
• Expreso Door and Expreso Uni Door — animated facility-grade sliding doors with block entity logic.
• Gate A — large-format containment gate.
• Heavy Containment Door, High Containment Door, Hermetic Door — high-security containment barriers.
• SCP Button — activation trigger compatible with both the rank system and Redstone.

Construction Materials

A comprehensive building palette for constructing SCP Foundation facilities:

• Concrete Panels — standard, light, and dark variants; each available as slab, stair, wall, and horizontal/vertical striped forms.
• Concrete Tiles — white variant with slab and stair forms; includes dark floor tile.
• Hormex — beige, blue, gray, and red variants with top and striped sub-variants.
• Hormix — gray and black variants with slab, stair, wall, and horizontal striped forms.
• Metal and Reinforced Metal — stair and wall variants; metal strip wall included.
• Ceilings — coffered, gray panel, metal planks, stamped, white panel.
• Blood Bricks — block, slab, stair, and wall. (Added in this release.)
• Heavy Wall — striped, top, and wall variants.
• Flooring — checkerboard, epoxy, and dark tile.
• White Concrete Tiles — slab and stair variants.
• Generic Bricks — top, bottom, and stair variants.

Furniture and Equipment

Air conditioning unit, alarm, announcement intercom, bookshelf, SCP chart, scattered documents, wall notes, containment capsule, control panel, office panel, office PC, office chair, planter, drawers, shelves, standard table, office table, waiting bench, microphone, intercom report terminal, floor lamp, generic lamp, industrial lamp, LED panel, pipeline, ducts (horizontal and vertical), SCP server rack, step screen, information screen, Corpse A, Corpse B.

Security Camera System

• Security Camera Block — wall-mountable camera with configurable field of view.
• Security Monitor Block — displays live feeds from linked cameras.
• Camera Disk item — used to link a camera to a specific monitor.
• Client-side rendering filters: black-and-white, scan lines, and additional post-processing effects.
• Dedicated CameraEntity to represent the active camera perspective.

Redstone and Signaling

• Redstone Transmitter and Redstone Receiver — wireless Redstone signal bridge between two points.
• Dynamic Sign Block — configurable signage with programmable display states.

World Generation

• SCP Installation — a procedurally generated underground structure that spawns in the world with its own loot tables containing mod-specific items.

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Items

Item	Description
Keycard (levels 1–5)	Grants access to card readers at or below the matching level
Anti-Concrete Compound	Crafting material for advanced facility construction
Containment Alloy	High-grade alloy used in containment structures
Magnetite Alloy	Advanced crafting material
SCP-173 Field Report	In-world document item
SCP-173 Spawn Egg	Spawns SCP-173
SCP-106 Spawn Egg	Spawns SCP-106
SCP-999 Field Report	In-world document item
SCP-999 Spawn Egg	Spawns SCP-999
SCP-1023 Arc File / Arc	Mission-related document items
Wrench	Utility tool for interacting with certain blocks
Camera Disk	Links a security camera to a monitor
Scientist Spawn Egg	Spawns the Scientist A NPC

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NPCs

Scientist A

A Foundation personnel NPC with pathfinding AI, nine discrete animation states (idle, walk start/loop/stop, run start/loop/stop, hurt, death), and threat-response behavior. The Scientist A will flee from nearby hostile entities and can be interacted with via right-click to open a dialogue screen.

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Technical Notes

• Full compatibility with GeckoLib 4.4 through 5.0.
• Dedicated client-server network layer handling rank synchronization, camera feeds, and blink state packets.
• Custom Creative Mode tabs with organized item categories.
• Crafting and stonecutter recipes provided for all construction blocks.

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Known Limitations

• The mission system is in an early stage. Only one mission is currently registered.
• Ranks 4 through 7 (Senior Researcher, MTF Commander, Site Director, O5 Council) are not assigned at spawn and must be earned through XP progression or granted via server command.
• Several block models and textures may be revised in future releases.
• As this is a pre-beta release, bugs and unfinished content should be expected.

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SCP Modern is developed by CarlosMeji7 in collaboration with LC Studios.
Based on the SCP Foundation universe, licensed under CC BY-SA 3.0.