Feedback Document：https://docs.google.com/spreadsheets/d/181XJdypLrqmH7_XLNXtuljfNafG7J2HQCtFD5E54tjE/edit?pli=1#gid=1698557684
[p align="start"]Due to the extensive content of the multiplayer mod, this announcement will be a bit lengthy.[p align="start"]PS: Based on feedback, many issues encountered in the current test are caused by not uninstalling Workshop mods. At this stage, the multiplayer mod only supports cosmetic mods. Compatibility with other mods will take some time to fully implement.[p align="start"]Dear Investigators, please ensure you clear all Workshop mods before participating in the test![p align="start"]※ To our beloved non-Chinese-speaking players: Currently, manual localization for this mod has not yet begun. The in-game text is temporarily filled by machine translation. We will officially start the localization process once mod testing and maintenance are complete.Hi Investigators~
[p align="start"]The large-scale free multiplayer mod "Heart of the Fog City" for Depersonalization is now in beta! We welcome all interested investigators to try it out~[p align="start"]This test will run until November. During this period, we’ll actively fix bugs and stabilize the build, aiming for an official release in December.This announcement covers:
Multiplayer Mod Beta Introduction
How to participate
Save backup
Quick guide
Common issues
Multiplayer Mod FAQ
Player count, cross-platform compatibility, mid-game join/leave, etc.
1. Multiplayer Mod Beta Introduction
[p align="start"]This mod is adapted from FogCoffee’s London Core of Steam, supporting up to three players in co-op. Single-player mode is also fully playable.[p align="start"]● Save Backup The test branch shares save files with the official branch, so you don’t need a new character. But for safety:[p align="start"]PLEASE back up your local saves—otherwise, you might lose them![p align="start"]Backup tutorial ↓↓Click the "Save" button in the lower-left corner of the game's main menu.
In the open folder, click on the "MeowNature" in the path bar to go back to the parent folder.
Compress the "Depersonalization-Release" folder. You can use any compression software—just make sure it can create a packaged file. If you've done this before, rename the new package for easier identification.
To restore your save after testing: Launch the game, and once at the main menu (do not click "Start Game"), navigate to the save folder. Then, extract and replace the "Depersonalization-Release" folder with your backup. (Since the game is running, this won’t conflict with cloud saves.)
Switch to the test branch:
Right-click the game in your Steam Library → Properties → Betas
Enter code: rgjtnetwork2026, then select \[2026network_test]
Join the mod in-game:
From the main menu, click Multiplayer Lobby → Create Room
Session Prep: After confirming character sheets, gather at the 2nd floor to start.
Team Actions: Trade items, duel (?), etc.
View Toggle: Bottom-right button to see allies’ positions.
Servers:
Local = LAN
Steam = Steam-login only
KCP = Future official server (enables mobile/PC cross-play)
Host Controls: Room settings (privacy, player cap), save/load (host-only, requires unanimous consent).
Economy: Money converts at 10:1 (mod’s 1000 = normal 10000). Max carry: 1500 pennies (you’re a broke detective).
Quests: Progress requires all tracking players to be present. Use Join/Cancel Track to adjust.
2. Multiplayer Mod FAQ
[p align="start"]Q: Is Heart of the Fog City the promised 8th mod? Is it free? A: Yes, it’s the 8th mod—free for all owners.[p align="start"]Q: Why a public test? Weren’t you launching in October? A: Two reasons:Multiplayer dev was way harder (original code was single-player; we’ve fixed 500+ bugs).
Limited marketing budget—saving the push for December.
