> For the complete documentation index, see [llms.txt](https://wiki.cobblemonislands.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.cobblemonislands.com/crates/events/necrotic-nightmare-event.md).

# Necrotic Nightmare Event

The Necrotic Nightmare Event on Cobblemon Islands has 10 Pokemon skins.

<p align="center"><a href="https://wiki.cobblemonislands.com/crates/events" class="button secondary">Back to Event Skins</a><a href="https://wiki.cobblemonislands.com/features/events/fossil-event" class="button secondary">← Fossil Event 2025</a><a href="https://wiki.cobblemonislands.com/features/events/deoxys-event" class="button primary">Deoxys Event →</a></p>

The Necrotic Nightmare Event is a Cobblemon Islands event from October 2025. It has 10 Pokemon skins.

{% hint style="success" %}
**Play on Cobblemon Islands.** A public Cobblemon 1.8 server. Get the modpack on Modrinth or CurseForge, then [join the server](https://connect.cobblemonislands.com)
{% endhint %}

## Pokemon skins in the Necrotic Nightmare Event

The Necrotic Nightmare Event covers 10 Pokemon skins. Each one links to that Pokemon's page. The skin art is not on the wiki yet.

| No.   | Pokemon                                                                                            | Also covers |
| ----- | -------------------------------------------------------------------------------------------------- | ----------- |
| #0025 | [Pikachu](https://wiki.cobblemonislands.com/new-islanders-information/pokedex/gen-1/pikachu)       |             |
| #0130 | [Gyarados](https://wiki.cobblemonislands.com/new-islanders-information/pokedex/gen-1/gyarados)     | Mega        |
| #0133 | [Eevee](https://wiki.cobblemonislands.com/new-islanders-information/pokedex/gen-1/eevee)           |             |
| #0286 | [Breloom](https://wiki.cobblemonislands.com/new-islanders-information/pokedex/gen-3/breloom)       |             |
| #0478 | [Froslass](https://wiki.cobblemonislands.com/new-islanders-information/pokedex/gen-4/froslass)     |             |
| #0563 | [Cofagrigus](https://wiki.cobblemonislands.com/new-islanders-information/pokedex/gen-5/cofagrigus) |             |
| #0655 | [Delphox](https://wiki.cobblemonislands.com/new-islanders-information/pokedex/gen-6/delphox)       |             |
| #0700 | [Sylveon](https://wiki.cobblemonislands.com/new-islanders-information/pokedex/gen-6/sylveon)       |             |
| #0711 | [Gourgeist](https://wiki.cobblemonislands.com/new-islanders-information/pokedex/gen-6/gourgeist)   |             |
| #0724 | [Decidueye](https://wiki.cobblemonislands.com/new-islanders-information/pokedex/gen-7/decidueye)   |             |

## Keep exploring

| Page                                                                                | What you'll find                             |
| ----------------------------------------------------------------------------------- | -------------------------------------------- |
| [Event Skins](https://wiki.cobblemonislands.com/crates/events)                      | Every collection in this section             |
| [Fossil Event 2025](https://wiki.cobblemonislands.com/features/events/fossil-event) | Released before the Necrotic Nightmare Event |
| [Deoxys Event](https://wiki.cobblemonislands.com/features/events/deoxys-event)      | Released after the Necrotic Nightmare Event  |
| [Pokedex](https://wiki.cobblemonislands.com/new-islanders-information/pokedex)      | Every Pokemon page on this wiki              |

*Skin lists come from the Cobblemon Islands datapack. Data checked in September 2026.*

***

<p align="center"><a href="https://connect.cobblemonislands.com" class="button primary">Play on Cobblemon Islands</a></p>


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