Chaos Zero Nightmare - Main Menu

Chaos Zero Nightmare - Main Menu

Main-menu backgrounds, BGM, and startup titles | Mod v0.3.0-beta

Replaces the Slay the Spire 2 main menu with Chaos Zero Nightmare backgrounds, music, and startup titles - and lets you use your own images as menu backgrounds. Gameplay and balance stay vanilla.

Version / Branch

• This file is v0.3.0-beta and is compatible with Slay the Spire 2 Beta v0.111.0.
• It does not work on the v0.107.1 official (Major) branch. Running it there can break game startup or menu presentation.
• There is currently no official-branch build. Use the Beta branch before installing it.

Quick Facts

• Menu backgrounds: 29 official CZN image backgrounds and ten official videos, including two promotional videos, played full-screen behind the menu.
• Menu BGM: 25 official CZN tracks, selectable independently, with a Mod-only volume slider.
• Your own images: drop images into the Mod folder, name them in-game, and pair each one with a BGM.
• Startup title: a short CZN x STS2 title with a random Japanese title voice from your installed CZN character skins, either official promotional video, the original STS2 logo animation, or nothing at all.
• Character lobbies: compatible installed CZN character Mods contribute their live lobby scene as an extra background.
• Standalone: no character skin is required and none is hard-depended on. Skins only add extra backgrounds and title voices.
• Multiplayer friendly: this is a menu-only Mod; other players are unaffected.
• Menu text in English, Traditional Chinese, Simplified Chinese, Japanese, and Korean.
• No gameplay, card, relic, power, damage, or balance changes.

v0.3.0-beta Update

• Adds the Disaster Season 4 video background with its official entry sound, 20 official story CG backgrounds and 11 official music tracks.
• The built-in collection now includes 29 image backgrounds, 10 videos, and 25 music tracks.
• Adds optional Nine live-lobby and Japanese startup-title voice support when the compatible Nine character Mod is installed.
• Menu presentation only; gameplay and balance are unchanged.

Installation

1. Open your Slay the Spire 2 game folder.
2. Create a mods folder if it does not already exist.
3. Extract CznMainMenu into that mods folder.
4. Launch Slay the Spire 2 with mods enabled.

Slay the Spire 2
└── mods
    └── CznMainMenu
        ├── CznMainMenu.dll
        ├── CznMainMenu.json
        └── CznMainMenu.pck
Using Your Own Images

1. Open the drawer on the right side of the main menu, then the Background tab.
2. Press + Add custom background, then Open folder.
3. Put PNG / JPG / WEBP / BMP files in the folder that opens.
4. Back in the game, pick the file, type a name, choose its BGM, and press Save.
5. Custom entries can be edited or removed later. Removing an entry never deletes your image file.

%APPDATA%\SlayTheSpire2\CznModConfig\CznMainMenu\backgrounds
Images you import stay on your own PC. They are never packaged, uploaded, or redistributed by this Mod.

Settings

• All options live in the drawer on the right side of the main menu. No separate ModConfig installation is required.
• Use CZN Logo to show or hide CznMainMenu's lower-left title lockup on custom backgrounds. This setting is enabled by default.
• Selections apply immediately and persist to user://CznModConfig/CznMainMenu/settings.cfg.
• Reset uses a two-press confirmation and restores every Mod setting.
• Escape or controller Cancel closes the drawer; controller focus connects the STS2 menu, the handle, and every drawer control.

Notes

• The download is large because the official menu videos are included; expect roughly 380 MB of disk use.
• Video backgrounds decode continuously while the menu is open. If the menu feels heavy on a low-end PC, use the CZN login CG, one of your own images, or the STS2 background instead.
• Unreadable or removed custom images fall back to the CZN default login CG instead of leaving an empty menu.

Links

• Steam Workshop release: Workshop page
• All CZN mods: Nexus profile / Steam collection
• Troubleshooting guide: CZN Mod Troubleshooting Guide
• Roadmap / progress: Patreon

Bug Reports

Please include your game branch and version, the Mod version, which background and BGM were selected, and your log file:

%APPDATA%\SlayTheSpire2\logs\godot.log
AI Assistance Disclosure

The background videos, CG, music, title artwork, and voice clips are based on Chaos Zero Nightmare assets.
Codex and Claude were used to help with code implementation, packaging, and documentation; final integration and testing were handled by Pelleas.

Credits and Disclaimer

Slay the Spire 2 is developed by Mega Crit.

Chaos Zero Nightmare and related artwork, audio, videos, music, logos, names, and trademarks belong to their respective rights holders.

This is an unofficial, non-commercial fan work by Pelleas. It is not affiliated with, sponsored by, or endorsed by Mega Crit, Smilegate, Super Creative, STOVE, or the Chaos Zero Nightmare rights holders.