Spiders On Ceiling
by vomiter
Spiders On Ceiling changes how spiders behave near ceilings, so they climb above their target and attack from there instead of getting stuck underneath.
What it does
Vanilla spiders that reach a ceiling tend to end up stuck directly beneath it. This Forge mod layers a narrow ceiling behavior over the existing spider logic: when a spider is under a ceiling and tries to move above its target, it can climb and attack from that position. The mod is described by its author as a lighter compromise than movement overhauls, which tend to come with a higher performance cost.
Rather than rewriting the vanilla spider AI or replacing its pathfinding system, the mod keeps the existing logic and adds only the ceiling case. Spider jockeys are handled properly too, so a skeleton riding a spider is rendered upright beneath the spider as the spider flips over.
Spiders On Ceiling is released for Forge only, with a single build for 1.20.1. Servers that run it need every player to install it too. The code is available under the MIT License, but the project is not open source.
Key features
Ceiling attacks
Spiders that reach a ceiling climb up and attack from above instead of stopping beneath it.
Lighter spider logic
Only the ceiling case is changed, leaving the rest of the vanilla spider behavior in place.
Upright spider jockeys
Skeleton riders on spiders stay correctly rendered when the spider flips upside down on a ceiling.
Pathfinding left alone
The vanilla AI and pathfinding system are kept, with no replacement of the spider's movement core.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players and server owners who want spiders to attack from ceilings while keeping the vanilla spider design and performance.
How it compares
Much More Spiders Reborn is a Forge mod for 1.9.4 – 1.12.2 with all rights reserved and no open source release. Nyf's Spiders is open source under the GNU Lesser General Public License v2.1 only and covers 1.12.2 – 26.1 on Fabric, Forge, NeoForge and Quilt. Spiders On Ceiling is only a Forge build for 1.20.1 and changes just the ceiling behavior.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Spiders On Ceiling | Forge | 1.20.1 | Client and server | 2026-06-03 |
| Much More Spiders Reborn | Forge | 1.9.4 – 1.12.2 | Client and server | 2024-02-24 |
| Nyf's Spiders | Fabric, Forge, NeoForge and Quilt | 1.12.2 – 26.1 | Client and server | 2026-09-29 |
Questions
Does Spiders On Ceiling need to be installed on the server?
Which loader and version does Spiders On Ceiling support?
Does Spiders On Ceiling change how spiders move in general?
In the catalog
Spiders On Ceiling is one of 7,555 Cursed mods on ModsFinder, and one of 3,426 Cursed mods for Forge. 34,764 mods support Minecraft 1.20.1.
More from vomiter
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What the author says
Spiders On Ceiling is a lightweight attempt to deal with one of Minecraft’s more cursed spider behaviors: spiders climbing up under ceilings and then effectively getting stuck. There are already mods that make spiders much more mobile, such as Spider 2.0, but that kind of full movement overhaul can come with a higher…
Official listing
- Modrinth page
- modrinth.com/mod/spiders-on-ceiling
- Owner
- vomiter
- Published
- 2026-06-03
- Updated on Modrinth
- 2026-06-03
- Facts verified
- 2026-10-15