Live Game · Fan Wiki

Muscle Transform Simulator Wiki

Codes, tiers, and rebirth routes for the Roblox gym sim.

Train, smash, and transform in Muscle Transform Simulator on Roblox. Codes, tiers, and rebirth routes to grow faster.

Spike Man bench-pressing a giant gold barbell in Muscle Transform Simulator
101M+
Total visits
20k+
Peak players
6
Active codes
6
Worlds live
Gameplay overview

Becoming the strongest in Muscle Transform Simulator

Game overview

How Muscle Transform Simulator actually plays

Level 1 scientist transforming into a hulking green form in Muscle Transform Simulator

Muscle Transform Simulator is a free Roblox incremental gym sim from Castaway Studios RBLX. You start scrawny, press F to transform, then train arms, legs, and body on machines until the current character is maxed. Smash clusters of city props for Gold, hatch pets, buy sequential weights, and spend that Gold on the next form. Completing a world's roster unlocks the next map, through World 6 ice. Claim working codes before they expire, then follow the getting started loop, the character tier list, and the rebirth route when a world stalls. The live experience has passed 100 million visits, with server size 10, diamond auras, and six maps after the Auras-titled drop.

Quick facts

Developer
Castaway Studios RBLX
Publisher
Roblox
Platform
Roblox (PC, mobile, console)
Genre
Incremental simulator
Release date
September 8, 2025
Price
Free-to-play (Robux shop)
Explore the wiki

Hubs for codes, training, characters, pets, scripts, and every world added since launch.

Links

Official Muscle Transform Simulator Roblox page, Discord invite, and this wiki map. No public Trello board exists for the game.

View all Links
Featured guides
Latest updates

Auras, extra worlds, Titanic weights, and code drops — newest first.

Popular right now
Quick start

New in the gym? Follow this loop to leave World 1 faster.

  1. 1

    Redeem every live code

    Open the gear in the top-left, paste each string from the codes list, and bank the free spins plus potions before you train.

  2. 2

    Transform, then max all three stats

    Press F, sit on arm, leg, and body machines, and turn auto-train on. The training guide explains weights and potions.

  3. 3

    Smash clusters for Gold

    Jump-punch groups of cars, trees, and crates instead of single props. The smash route covers charge attacks and V-teleport returns.

  4. 4

    Buy the next character, then the next world

    Max the current form, spend Gold, and only then open Worlds. Use the roster so you do not skip a required body.

  5. 5

    Equip pets and plan rebirth

    Hatch lobby eggs, equip the strongest pets, and follow the rebirth guide once a world roster is complete.

FAQ

Wiki FAQ

Quick answers to the most common questions.

Where should I start in Muscle Transform Simulator?

Redeem codes, then follow Getting Started so you transform, train, and smash in the right order.

How do I redeem codes?

Click the gear in the top-left, type the code in the Codes box, and press Enter. Full clicks are on how to redeem.

How do I unlock the next world?

Max every character in the current world and spend Gold on each unlock. The world roster lists the known line.

Are pets worth the Gold?

Yes. Eggs in the lobby grant strength and training speed. Rank them with the pet tier list before you hatch expensive world eggs.

Which languages does this wiki cover?

English at the root, plus French, German, Spanish, and Brazilian Portuguese. Use the two-letter switcher in the header; legal pages stay in English.

Is this wiki official?

No. It is a fan guide for the Roblox experience by Castaway Studios RBLX. Confirm codes and patches on the official game page and Discord.

Do scripts get you banned?

Injectors always carry risk. Read the scripts hub for feature lists and safety notes before you run anything on a main account.

Ready to transform?

Redeem codes, train with the beginner guide, then spend Gold on the next form from the character roster.

Start with the beginner guide