+1 Muscle to Push Boulder Wiki

+1 Muscle to Push Boulder is a Roblox incremental simulator from Doolittle! where every click builds Muscle, gym training accelerates growth, Rebirth grants massive multipliers, and pushing the Boulder forward is your main progression loop. If you are not strong enough, the Boulder crushes you — so planning muscle thresholds matters from minute one.

This is an unofficial fan wiki for Place ID 136107936984073. We are not affiliated with Roblox Corporation or Doolittle!, but we play the game, test strategies on live servers, and update pages after patches. Bookmark this hub for codes, guides, and tier lists.

Important: This is NOT Sisyphus Muscle Push (404MaxLost), NOT Push A Rock (Push League), and NOT +1 Muscle to Arm Wrestle (Beast Lifters). Codes and guides from those games do not apply here.

Promo codes are the fastest way to jump-start a session when they exist. Doolittle! may release codes around milestones and updates. Our active codes page is verified regularly — last checked 2026-07-08 — and lists every reward before you spend time typing them in-game.

As of 2026-07-08, we have not verified publicly released working codes for this Place ID. When codes drop, they will appear on the codes hub first. Read the how to redeem guide and bookmark the troubleshooting page if redemption fails.

New to +1 Muscle to Push Boulder? Follow this loop before worrying about end-game eggs or rebirth min-maxing.

Our guide library covers every stage — from first click to optimized boulder pushes. These pages solve the most common player pain points.

Pets, eggs, and gym upgrades define your multiplier ceiling. Our tier lists rank options by real in-game value — not hype.

Use our calculators to plan rebirth timing and muscle thresholds. Visit the official links hub for Roblox page and community resources — there is no official Trello board at this time.