JB's Fireflies - B41 and B42 + MP - Visuals & Audio for Project Zomboid

Mod «JB's Fireflies - B41 and B42 + MP» for Project Zomboid

10:14
44

This mod adds ambient fireflies to Project Zomboid, compatible with Build 41 and Build 42.12+. Fireflies appear during summer nights, with spawn rates influenced by weather conditions and time of year.

  • Fireflies prefer warmer weather and avoid rain
  • Spawn locations prioritize shorelines, trees, and grass over open water or pavement
  • Brightness decreases in lit areas
  • Fireflies avoid a small area around the player

The mod includes sandbox options to customize spawning behavior:

  • Spawn frequency (ticks)
  • Minimum and maximum spawn amount per tick
  • Maximum rendered fireflies on screen
  • Spawn radius around the player
  • Oversampling iterations for spawn location
  • Seasonal fade-in/fade-out duration (days)
  • Start and end days of the firefly season
  • Option to hide fireflies outside the player's view

Note: «Day» is calculated assuming 30 days per month (e.g., June 15th = 165).


Technical Information:

  • Workshop ID: 3591708775
  • Mod ID: JB_Fireflys
Author Links:
Works on Steam, GOG, and Non-Steam versions. Installation method: Manual.
Simply drop the extracted folder inside your `C:\Users\YourName\Zomboid\mods` directory. It's always a good idea to read the author's notes for any specific details.

Mod Info

Author:
Version:
22.04.2026
Size:
2.70 MB
Added by:
Compatible with Project Zomboid

Download Links

File Security

SHA-256:
1b58155d5590812d756b32c0be92b7a7518730e4be877c66d889bcb0d494c3ce
VT Detection:
0/65
No comments yet. Be the first to add a comment!

More mods by jbdiablo

Questions

How do I install this mod?

Extract the mod files and place them in C:\Users\YourName\Zomboid\mods . Then enable it in the game menu. This method works for Steam, GOG, and other versions of Zomboid. Full install guide .

How do I download this mod?

Use one of the download links to get the latest version of this mod. If one mirror is unavailable, try another. Full download guide .

Is this mod safe to use?

Files up to 32 MB are scanned and include a Virus Scan Report . Always review the scan results before downloading, or run your own check for extra safety.

Last Comments