My Bestie is Bodybuilding

Author: naptime

  • My Bestie is Bodybuilding

    My Bestie is Bodybuilding

    My Bestie is Bodybuilding (often shortened as MBIB) is an FMG (female muscle growth) roleplaying video game that was first released in early access in 2025.

    MBIB tells the story of Sam, a young woman, whose life is turned upside down when a figure from her past returns.

    The game is free to play and is supported by its Patreon members. MBIB is playable in browser on both computers and phones.

    The game is intended for mature audiences only. It does not contain any nudity or violent material. Gambling and drug use are present.

  • Muscle Decay

    Muscle Decay

    Muscle Decay is a feature that makes characters lose muscle when they don’t work out.

    To combat muscle decay, the character should work out at least once a day.

    It is a natural part of the world of the game and thus affects all characters with Muscle Potential.

  • Patch Notes

    Patch Notes

    A new patch has been released. Take a look at all the fixes from below.

    • Patch Note here
    • Another Patch Note here
    • A third Patch Note here

    Report a bug

    If you’ve encountered a bug with this game version, please report it to us using the form below.

  • Muscle Potential

    Muscle Potential

    Muscle Potential is a central mechanic of MBIB.

    Characters that have Muscle Potential can build muscle throughout the game.

    List of characters with Muscle Potential

    • Sam
    • Julia
    • Brian