Cave Spider Spawn
by Serilum
With Cave Spider Spawn installed on a server, some spiders that appear underground turn into cave spiders, which poison players and are harder to hit.
What it does
When a spider spawns naturally, the mod gives it a configurable chance to be a cave spider instead. The default chance is 0.15, meaning 15% of spawned spiders. By default the swap only applies below the surface, so spiders on the grass stay unchanged. Cave spiders are a small, dark variant that can poison players, which adds some difficulty to underground travel.
The mod can also restrict cave spiders to a certain height. When the option for a specific Y level is enabled, cave spiders only spawn below the value set in belowSpecificY, which defaults to 0, the level where deepslate begins. The option is disabled by default. All of these settings live in the mod's config file, so server owners can change the chance, the surface rule and the Y level.
Cave Spider Spawn requires Collective. It runs on the server only, so players join without installing anything. The mod is published for Fabric, Forge, NeoForge and Quilt across 23 release versions, 1.19.2 – 26.3, and is released under All rights reserved, so it is not open source.
Key features
Chance-based spawning
Spawned spiders have a configurable chance to become cave spiders, with 15% as the default.
Surface restriction
By default cave spiders spawn only below the surface, which can be turned off in the config.
Height limit
An optional setting confines cave spiders to spawn below a chosen Y level, defaulting to 0.
Poisoning cave spiders
Cave spiders can poison players and are harder to hit, which adds difficulty to underground areas.
Compatibility
Latest build for each game version and loader.
26.x5 of 5 versions with builds
1.21.x12 of 12 versions with builds
1.20.x5 of 5 versions with builds
1.19.x1 of 1 version with builds
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
No Cave Spider is a Fabric, Forge, NeoForge and Quilt mod for 1.13 – 1.21.11, released under All rights reserved and not open source. It is server required with an optional client. GetWebbed is server-side only and open source under the GNU Lesser General Public License v3.0 only, with files for 1.18.2 – 1.21.6. Spider Web Attack needs the server and has an optional client, is not open source and is licensed under the GNU General Public License v3.0 only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Cave Spider Spawn | Fabric, Forge, NeoForge and Quilt | 1.19.2 – 26.3 | Server-side only | 2026-10-02 |
| No Cave Spider ❌ | Fabric, Forge, NeoForge and Quilt | 1.13 – 1.21.11 | Server required, client optional | 2025-11-27 |
| GetWebbed | Fabric, Forge, NeoForge and Quilt | 1.18.2 – 1.21.6 | Server-side only | 2024-07-19 |
| Spider Web Attack | Fabric, Forge, NeoForge and Quilt | 1.21.5 – 26.3 | Server required, client optional | 2026-10-10 |
Questions
Does Cave Spider Spawn need Collective?
Do players need to install Cave Spider Spawn?
Can cave spiders be limited to deeper levels?
Which game versions does the mod support?
In the catalog
Cave Spider Spawn is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 8,071 mods support Minecraft 26.3.
More from Serilum
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What the author says
Cave Spider Spawn adds a chance for cave spiders to spawn naturally in place of a normal spider. By default they have a 15% chance to spawn and only below the surface, though this can be changed in the config. Adds a bit more difficulty to the game, due to cave spiders being able to poison players and they're harder…
Official listing
- Modrinth page
- modrinth.com/mod/cave-spider-spawn
- Owner
- Serilum
- Published
- 2023-12-20
- Updated on Modrinth
- 2026-10-02
- Facts verified
- 2026-10-15