No. Once the game is installed with multiplayer working, you can delete all .rar, .bin, and .part files. They are not needed to run the game. Keep only the installed game folder.
| Your Goal | Do you need this file? | |-----------|------------------------| | Play single-player / campaign only | ❌ No – you can delete it safely | | Play split-screen or LAN (offline) | ✅ Probably yes | | Play online via Steam/Epic (legit or cracked) | ✅ Absolutely yes | | You have slow internet / limited space | ❌ Skip it – saves 30-50% download size |
You cannot simply double-click this file and expect the game to install. Here is the step-by-step process to correctly handle this file.
One of the most common mistakes new users make is deleting the optional-multiplayer files to save hard drive space, only to later realize they cannot play online with friends. But why does FitGirl separate these files in the first place?
Using The Unarchiver (macOS):
setup-fitgirl-optional-multiplayer.bin.part1.rar appears to be a compressed part of an optional multiplayer component for a FitGirl repack.
To use files organized in this format, follow these general steps for a successful extraction and installation: Verify Sequential Parts
: All related parts (e.g., part1, part2, etc.) must be located in the same folder. If any numerical part is missing, the extraction process will be unable to complete the file. Extracting the Archive
: Use a file archiver utility such as 7-Zip or WinRAR. Opening or right-clicking the first part (part1) and selecting an extraction option will allow the software to automatically sequence data from the subsequent parts to reconstruct the original file. File Placement
: Once extracted, the resulting file typically needs to be placed in the same directory as the primary installation executable to be recognized during a setup process. Installation Integration
: During the software installation, the setup wizard usually detects these additional files and may provide a checkbox or option to include the specific component. Security Considerations
: Exercising caution when downloading compressed archives from the internet is important. Files from unverified sources can be modified or bundled with malicious software. Utilizing updated antivirus software and verifying the integrity of downloads is recommended to protect the system.
"setup-fitgirl-optional-multiplayer.bin.part1.rar" is a common naming convention used for optional files in game repacks from FitGirl Repacks
Here is a breakdown of what this file represents and how to handle it: Purpose and Function Optional Content : As the name suggests, this file is not required setup-fitgirl-optional-multiplayer.bin.part1.rar
to play the core single-player game. It contains data specifically for multiplayer modes or online fixes. Compressed Archive
extension indicates it is a compressed volume. Because it ends in .part1.rar
, it is the first piece of a "split" archive; you must have all subsequent parts (part2, part3, etc.) in the same folder to extract it successfully. Binary Data : Once extracted, it typically yields a file that the main game installer (
) looks for during the installation process to include multiplayer features. Community Consensus and Safety Legitimacy
: FitGirl is a well-known group in the repacking community, active since 2016. If downloaded from the official site ( fitgirl-repacks.site
), these files are generally considered safe by the community. Verification : After downloading, it is highly recommended to run the "Verify BIN files before installation.bat" usually included in the repack folder. This ensures the files (including the multiplayer ones) aren't corrupted. Common Issues
: Users often report "Bad File" or "Missing File" errors if they skip downloading optional files but leave them in the installation directory. If you don't need multiplayer, do not download this file; if you do download it, ensure it is fully complete. Important Precautions Official Source : Only download from the official domain to avoid malware from "copycat" sites. : Many users in the community suggest using a
when accessing or downloading from such sites to maintain privacy from ISPs. AI responses may include mistakes. Learn more
How to Fix Fitgirl Repack There Was Bad File and Missing File (2026)
The Part File
Leo stared at the download folder. After three days, twelve “connection interrupted” errors, and one near-miss with a power outage, it was finally done. A single, shining archive sat before him: setup-fitgirl-optional-multiplayer.bin.part1.rar.
The rest of the parts – part2 through part89 – were already neatly lined up. But Part 1 was the key. The gateway. Without it, the great machine of cracked code and repacked assets would refuse to breathe.
He double-clicked.
WinRAR groaned to life, its progress bar a lazy green slug. Leo leaned back, rubbing his eyes. Outside his window, the city was a smear of amber streetlights and rain. Inside, his PC fans hummed a familiar requiem of overwork and hope.
The file wasn't just data. He’d read the forum comments.
“Multiplayer works, but only if you use the Radmin VPN trick.” “The optional co-op patch is hidden in Part 1’s comment stream. Use 7-Zip, not WinRAR.” “My antivirus screamed, but it’s a false positive. Probably.”
The last one made him smile. Probably.
The archive opened, revealing a digital labyrinth: Setup.exe, a CODEX folder that glowed like a forgotten shrine, and a subfolder named MULTIPLAYER_OPTIONAL. Inside that was a single file: coop_ghost.dll and a text file called READ_OR_THE_GHOST_WINS.txt.
Leo opened the text file.
“You didn’t read this, did you? You just clicked straight through. That’s fine. The Ghost doesn’t need your attention. It needs your connection. Once you paste this .dll into the system32 folder, you won’t be playing the game. The game will be playing you. Just kidding. Or am I? Paste it. What’s the worst that could happen? – FitGirl (probably)”
Leo laughed nervously. He’d read worse on Steam forums. He copied coop_ghost.dll to the game’s root folder, then, on a whim, into C:\Windows\System32 as the note suggested. His cursor hovered over ‘Paste’.
What’s the worst that could happen?
He clicked.
For a moment, nothing. Then his second monitor flickered. Not the usual driver-crash flicker, but something slower. Deliberate. The wallpaper – a serene mountain lake – rippled like a stone had been dropped into it. The water turned black. From the center, a shape rose. Pale, gangly, its face a smudge of pixels that hadn’t fully rendered.
Leo froze.
The shape tilted its head. A voice, tinny and compressed like a 96kbps MP3, whispered through his speakers: Using The Unarchiver (macOS) :
“Thanks for the invite. Multiplayer requires two players. You’re Player 2.”
His mouse cursor jerked. It moved on its own, dragging the coop_ghost.dll from the System32 folder and dropping it into his startup folder. Then it closed the window, opened Discord, and typed in his usual gaming server:
/join lobby. The Ghost is ready. Hosting. Password: yourfirstborn.jpg
Leo’s hands flew to the keyboard, but the keys were dead. The ghost on his second monitor smiled – a jagged, glitched-out grin – and raised a hand. On the main monitor, the game launched. Not the main menu, but a dark level. A graveyard. A single tombstone read: USER/LEO – LAST ONLINE: JUST NOW.
A new notification popped up in the corner of his screen: “Radmin VPN connected. 1 peer found. Ping: ∞”
The ghost stepped out of the second monitor and into the room.
Leo didn’t scream. He just watched as the thing sat in his gaming chair, cracked its knuckles (the sound of corrupted .wav files), and whispered:
“Part 2 downloads tomorrow. Don’t miss it.”
And Leo, because he had read the forums, knew there was only one way to uninstall the optional multiplayer.
He reached for the power strip. But the ghost was faster. It tapped the .dll one more time. The text file reopened, new line at the bottom:
“Unplugging voids the warranty. Of your soul.”
Outside, the rain stopped. Inside, the game began.