SCP-087, The Stairwell
by Zcoper
Players who explore deep below the surface can reach SCP-087, The Stairwell, a dark structure that descends through the ground and is staffed by hostile creatures.
What it does
SCP-087, The Stairwell adds a terrifying structure drawn from the SCP universe, where the entity is known as the Stairwell. It is a dark shaft that extends deep underground, and its blocks cannot be broken and slow the player's movement. Light sources give little help inside it, eerie sounds grow as the player descends, and monsters spawn within the stairwell. The mod requires Geckolib, and it is an optional addition for the Forge loader in the 1.19.2 – 1.20.1 range.
The structure generates on the surface of the overworld, and several SCP-087 structures can appear in the same world. The entity uses an invisible block that spawns through random ticks. The mod is client and server, so the server and every player need it. Its only file for the newest build is 1.0.0 for 1.20.1, and it is released under All rights reserved, so the code is not open source.
Key features
Endless stairwell
SCP-087 works as an infinite stairwell that can teleport players upward, which the gamerule EndlessStairwell can switch off.
Deep dark structure
The stairwell extends far underground, with walls that resist breaking and reduce how quickly players can move.
Fear and sound
Eerie sounds play as players descend, and monsters spawn inside the stairwell to add danger.
Valuable loot
Players who reach the end of the stairwell can find valuable loot as a reward for the descent.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
SCP-173 The real Peanut is a Forge mod for 1.20.1 that runs client and server under the MIT License. Left Behind is also a Forge mod for 1.20.1 that runs client and server under the MIT License. SCP: Overtime Sites is a Forge mod for 1.20.1 under the MIT License, and it is the only one of the three that runs on the server alone.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| SCP-087, The Stairwell | Forge | 1.19.2 – 1.20.1 | Client and server | 2026-06-09 |
| SCP-173 The real Peanut | Forge | 1.20.1 | Client and server | 2025-06-03 |
| Left Behind | Forge | 1.20.1 | Client and server | 2024-05-15 |
| SCP: Overtime Sites | Forge | 1.20.1 | Server-side only | 2025-07-04 |
Questions
Does SCP-087, The Stairwell need Geckolib?
Does the mod have to be installed on the server as well as the client?
Which game versions does SCP-087 support?
In the catalog
SCP-087, The Stairwell is one of 8,515 World generation mods on ModsFinder, and one of 5,058 World generation mods for Forge. 34,764 mods support Minecraft 1.20.1.
More from Zcoper
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What the author says
The Stairwell adds a terrifying new structure. Its history comes from the SCP universe, where it is referred to as SCP-087, also known as The Stairwell. This structure is found on the surface and is indestructible. Once you enter, you’ll encounter an endless, dark stairwell that descends deep into the ground. It's…
Official listing
- Modrinth page
- modrinth.com/mod/scp-087-the-stairwell
- Owner
- Zcoper
- Published
- 2026-06-09
- Updated on Modrinth
- 2026-06-09
- Facts verified
- 2026-10-15