+1 Muscle to Push Boulder Codes (July 2026)
Last verified: 2026-07-08
Active Codes Status
+1 Muscle to Push Boulder by Doolittle! is a recently released Roblox incremental simulator where you train muscle, hatch pets, and push a boulder along a progression route. Promo codes are a common way developers reward players with free muscle boosts, luck multipliers, or temporary currency — but because the game launched recently, an official code system may still be rolling out.
This wiki covers +1 Muscle to Push Boulder by Doolittle! (Place ID 136107936984073). It is not Sisyphus Muscle Push, Push A Rock, or +1 Muscle to Arm Wrestle — those are separate Roblox titles with different mechanics, developers, and code lists.
As of 2026-07-08, we have not verified any publicly released, working promo codes for Place ID 136107936984073. Many wiki and YouTube lists reuse codes from unrelated muscle simulators; copying those strings wastes time and often leads to "Invalid Code" errors. We only list codes after in-game confirmation on the live experience.
When Doolittle! publishes codes — typically through a game description update, a social post, or a milestone celebration — this page will be updated first. Bookmark the active codes page and check back after major updates rather than trusting outdated third-party aggregators.
How to Get Codes When They Drop
Developers usually announce codes when the experience hits a Like or Favorite milestone, releases a content patch, or runs a limited event. For a new title like +1 Muscle to Push Boulder, the most reliable signal is the official Roblox game page: scroll the description for a "Codes" or "Redeem" section before searching elsewhere.
We recommend liking and favoriting the game on Roblox so you receive update notifications in your feed. Many incremental sims gate early codes behind community milestones such as 10K likes or 50K favorites — participating helps the whole player base unlock rewards faster.
Follow the developer's linked social channels if they appear on the game page or in the official links hub. Discord servers and X (Twitter) posts often reveal limited-time codes that expire within days. When a code drops, redeem it immediately using our how to redeem guide before caps or timers run out.
- Like and Favorite the game on Roblox for patch notifications.
- Read the game description after every update — codes often appear there first.
- Avoid code lists tied to Sisyphus Muscle Push or Push A Rock; they will not work here.
- Redeem new codes on a public server with a stable connection.
- Report working codes to community hubs so wikis can verify them quickly.
Verified Active Codes
The table below lists every code we have personally verified in +1 Muscle to Push Boulder. If it is empty, that means no legitimate promo code is publicly available yet — not that your account is broken.
When codes become active, we record the exact reward text shown in-game, the date verified, and whether the code is limited-use. Expired entries move to the expired codes archive so you can see historical rewards without retrying dead strings.
No verified active codes yet.
Last checked 2026-07-08. Like and Favorite the game, then return after the next update.
Before You Report a Missing Code
If a website claims to have "secret" or "unlimited" codes for +1 Muscle to Push Boulder, treat that as misinformation until proven in-game. Scam sites sometimes phish Roblox credentials or push unrelated game joins.
When codes do exist and fail, walk through the codes not working troubleshooting page. Common fixes include rejoining a public server, checking exact capitalization, and confirming the code was meant for this Place ID rather than a clone experience.
Our code redemption guide explains the full redemption UI flow so you are ready the moment Doolittle! enables the feature. Pair that with the beginner guide if you are still learning how muscle, pets, and rebirth interact with free boosts.