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  • How to Use a MrAntiFun Game Trainer

    Compatibility: Trainers on this forum target the single-player mode of PC games on the exact version listed in each thread. They do not bypass online anti-cheat systems (Easy Anti-Cheat, BattlEye, VAC) and should never be used in multiplayer or competitive modes.

    Installation (4 steps):

    1. Use the download link in the thread. Check what you receive before running it.
    2. Scan the file yourself before running it. Trainers edit game memory, so antivirus tools often flag them heuristically.
    3. Launch the target game first, reach the main menu, then start the trainer (Run as administrator).
    4. Use the assigned function keys (usually F1–F12) to toggle options: infinite health, stamina, resources, etc.

    If a trainer doesn't activate: confirm the game version matches the "Game Version" header; update Visual C++ Redistributables; and check that your AV hasn't quarantined the executable. Discussion and fixes happen in Trainer Support.

    All tools here are community-contributed, tested, and updated per thread.

The Backrooms: Expedition Trainer

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MrAntiFun

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Game Name: The Backrooms: Expedition
Trainer Version: +28
Developer: Sylvester
Publisher: Sylvester
Trainer Coder: CheaAtHappesn

The Backrooms: Expedition is an action game developed by Sylvester, released in 2025. The trainer below is for single-player use only.​

About The Backrooms: Expedition​

Explore the world of backrooms from this solo developed game. explore creepy and eerie levels, and also calm and liminal levels, but be careful, you're not the only one there.

The Backrooms: Expedition – Game Information​

  • Developer: Sylvester
  • Publisher: Sylvester
  • Genre: Action, Adventure, Indie
  • Release Date: 1 Jul, 2025
  • Platform: Windows
  • Languages: English

ss_2e54fbfc9f9583660de84b2924b26031284332ae.600x338.jpg
 

Attachments

  • The Backrooms: Expedition Trainer Trainer Setup.exe
    24 MB
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