+1 Muscle Evolution Updates and Events
Use this dated update and event timeline for worlds, bosses, and rewards, with selected-source notes and explicit unknown fields before changing your next route.
Maintained by an independent Roblox guide editor. Checked 2026-08-12; corrections and editorial standards are available from the site information pages.
Fresh public signals worth acting on
This route only promotes signals that change what a player should do next. Right now that means the official Roblox metadata refresh, source-watch code handling, the rebirth level ladder, and the full egg-price table.
The official game record moved on 2026-08-10
The official Roblox records still show the live title as +1 Muscle Evolution, with the universe updated on 2026-08-10T11:49:52Z and the game metadata feed updated on 2026-08-11T12:58:38Z.
Code trackerLive rewards got more specific
The current accessible tracker route did not expose exact code strings, so 3KLIKES, FREEPET, release, and 1KLIKES stay in source-watch/check-state instead of being treated as guaranteed active rewards.
Progression deltaRebirth switched from a wins myth to a level ladder
Current public rebirth coverage now says Rebirth 1 has no level requirement, Rebirth 2 needs Level 26, and Rebirth 3 needs Level 32, with reset tradeoffs and milestone unlocks.
Pet economyThe egg ladder expanded dramatically
Current public pet coverage now runs from Basic Egg at 100 Wins to Coconut Egg at 125 billion Wins, plus a Robux-only 67 Egg.
Codes
The current public list is source-watch only: no code is guaranteed active in this pass. Re-check codes after every public Roblox update because reward bundles and starter-code status can flip quickly.
Stages and bosses
Use the stage route when update chatter mentions enemies, bosses, rewards, or clear routes that are not yet verified.
Boss checks
Use the boss guide when a new arena, drop, or damage check changes the safest clear order.
Progression
The most useful new checkpoint is no longer a Stage 20 rumor. The training guide now owns the public rebirth ladder, reset tradeoffs, Backrooms access, and King of the Hill timing.
Pets and rewards
Public pet coverage now exposes the full egg ladder and rare chase pets, but it still does not justify exact rankings or hidden stat claims. Keep tier advice role-based until current in-game stats are verified.