Gym Star Simulator Wiki
Train, hatch pets, win competitions and climb through eleven gyms. This is an independent reference for the Roblox game — codes checked daily, and every table says where it came from.
1 working code as of today. How to redeem.
Gym Star Simulator codes and check status
Read out of the live experience once a day. Every code below carries the dates we actually saw it, which is the difference between a checked list and a copied one.
SPACEFORCE
Working. Seen in every daily check for 19 days, Sep 25 through Oct 13.
BOOTCAMP
Expired. Last seen working Sep 24, 2026 — left here so you can tell it apart from a code you have not tried.
SUMMERHEAT
Expired. Last seen working Aug 27, 2026 — left here so you can tell it apart from a code you have not tried.
Full detail, redemption steps and expired codes on the codes page.
Gym Star Simulator pet tier list preview
The top of the ranking. Placed by arithmetic on published values rather than by opinion, so you can check the placement yourself.
Every entry, banded by the real quartiles of the published numbers, on the full tier list.
Tools you can use immediately
Calculators for the numbers the game does not show you.
Pet multiplier calculator
Add up the pets you have equipped and see the combined multiplier.
How big is Gym Star Simulator right now?
Released Aug 20, 2024 — 784 days ago. The developer last shipped an update 3 days ago.
- Players right now
- 5.4K
- Total visits
- 720.8M
- Favourites
- 7M
- Like ratio
- 92.5%
5,445
+748 (+15.9%) vs a week ago
720,833,106
7,017,555
255,687 likes / 20,754 dislikes
Low 4KHigh 13.4K
Show these readings as a table
| Date | Players online | Total visits |
|---|---|---|
| Aug 17, 2026 | 8,704 | 676,120,490 |
| Aug 18, 2026 | 6,803 | 676,769,167 |
| Aug 19, 2026 | 6,434 | 677,538,194 |
| Aug 20, 2026 | 7,281 | 678,296,412 |
| Aug 21, 2026 | 8,072 | 679,159,346 |
| Aug 22, 2026 | 9,096 | 680,051,314 |
| Aug 23, 2026 | 11,300 | 680,974,776 |
| Aug 24, 2026 | 7,379 | 682,064,395 |
| Aug 25, 2026 | 13,386 | 683,399,484 |
| Aug 26, 2026 | 8,085 | 684,112,764 |
| Aug 27, 2026 | 6,607 | 685,104,382 |
| Aug 28, 2026 | 8,726 | 685,981,505 |
| Aug 29, 2026 | 11,513 | 687,090,227 |
| Aug 30, 2026 | 9,316 | 688,036,066 |
| Aug 31, 2026 | 6,831 | 688,975,872 |
| Sep 1, 2026 | 5,905 | 689,731,044 |
| Sep 2, 2026 | 5,077 | 690,394,846 |
| Sep 3, 2026 | 5,601 | 691,035,905 |
| Sep 4, 2026 | 7,124 | 691,672,992 |
| Sep 5, 2026 | 8,076 | 692,455,084 |
| Sep 6, 2026 | 8,156 | 693,339,541 |
| Sep 7, 2026 | 5,702 | 694,159,818 |
| Sep 8, 2026 | 5,391 | 694,828,313 |
| Sep 9, 2026 | 4,709 | 695,468,577 |
| Sep 10, 2026 | 4,749 | 696,074,036 |
| Sep 11, 2026 | 4,931 | 696,634,960 |
| Sep 12, 2026 | 7,252 | 697,274,203 |
| Sep 13, 2026 | 8,172 | 698,103,126 |
| Sep 14, 2026 | 4,808 | 698,865,699 |
| Sep 15, 2026 | 6,287 | 699,494,242 |
| Sep 16, 2026 | 4,969 | 700,153,432 |
| Sep 17, 2026 | 4,750 | 700,798,484 |
| Sep 18, 2026 | 4,904 | 701,386,921 |
| Sep 19, 2026 | 7,350 | 702,019,388 |
| Sep 20, 2026 | 7,865 | 702,854,604 |
| Sep 21, 2026 | 4,342 | 703,590,586 |
| Sep 22, 2026 | 4,186 | 704,132,356 |
| Sep 23, 2026 | 5,039 | 704,705,339 |
| Sep 24, 2026 | 5,914 | 705,411,784 |
| Sep 25, 2026 | 8,358 | 706,268,412 |
| Sep 26, 2026 | 9,246 | 707,300,110 |
| Sep 27, 2026 | 9,970 | 708,343,327 |
| Sep 28, 2026 | 6,451 | 709,355,237 |
| Sep 29, 2026 | 5,195 | 710,104,863 |
| Sep 30, 2026 | 4,828 | 710,750,229 |
| Oct 1, 2026 | 5,247 | 711,364,306 |
| Oct 2, 2026 | 6,068 | 712,044,941 |
| Oct 3, 2026 | 8,652 | 712,900,208 |
| Oct 4, 2026 | 9,278 | 713,915,489 |
| Oct 5, 2026 | 5,474 | 714,857,889 |
| Oct 6, 2026 | 4,697 | 715,478,854 |
| Oct 7, 2026 | 5,687 | 716,126,448 |
| Oct 8, 2026 | 4,003 | 716,748,720 |
| Oct 9, 2026 | 5,781 | 717,234,876 |
| Oct 10, 2026 | 8,901 | 718,032,873 |
| Oct 11, 2026 | 10,188 | 719,054,747 |
| Oct 12, 2026 | 6,828 | 720,034,495 |
| Oct 13, 2026 | 5,445 | 720,833,106 |
When Gym Star Simulator was last updated
18 releases observed across 58 daily readings. We watch the update timestamp Roblox itself publishes and record the day it moves — no announcement needed, and it cannot be back-dated.
Full observed release log on the updates page.
Reference tables
Every table names the source its rows came from and the date that source was last read. Nothing here is padded with rows we invented.
Trainers
Every trainer the community wiki documents, with its bonus and how to unlock it.
5 entries →Pets
All 389 standard-tier pets with their muscle multiplier, egg and rarity.
389 entries →Worlds and gyms
Every gym in progression order, and what changes when you reach it.
11 entries →Shiny pets
All 294 Shiny pets with their muscle multiplier, egg and rarity.
294 entries →Rainbow pets
All 294 Rainbow pets with their muscle multiplier, egg and rarity.
294 entries →Neon pets
All 294 Neon pets with their muscle multiplier, egg and rarity.
294 entries →Eggs and boxes
Every egg and box, what it costs and where it is.
12 entries →World 1 pets — Seaside Gym
The 11 pets that hatch in World 1, the Seaside Gym.
11 entries →World 2 pets — Modern Gym
The 16 pets that hatch in World 2, the Modern Gym.
16 entries →World 3 pets — Space Gym
The 15 pets that hatch in World 3, the Space Gym.
15 entries →World 4 pets — Deep Ocean Gym
The 16 pets that hatch in World 4, the Deep Ocean Gym.
16 entries →World 5 pets — Zoo Gym
The 15 pets that hatch in World 5, the Zoo Gym.
15 entries →World 6 pets — Ancient Gym
The 16 pets that hatch in World 6, the Ancient Gym.
16 entries →World 7 pets — Pyramid Gym
The 16 pets that hatch in World 7, the Pyramid Gym.
16 entries →World 8 pets — Body Builder Academy
The 16 pets that hatch in World 8, the Body Builder Academy.
16 entries →World 9 pets — Giant Gym
The 16 pets that hatch in World 9, the Giant Gym.
16 entries →World 10 pets — Anime Gym
The 16 pets that hatch in World 10, the Anime Gym.
16 entries →World 11 pets — Muscle Factory
The 16 pets that hatch in World 11, the Muscle Factory.
16 entries →Easter Pass pets
The 6 pets that hatch in Easter Pass.
6 entries →Gothic High School Pass pets
The 7 pets that hatch in Gothic High School Pass.
7 entries →Muscles of the Caribbean Pass pets
The 7 pets that hatch in Muscles of the Caribbean Pass.
7 entries →Octopus Pass pets
The 7 pets that hatch in Octopus Pass.
7 entries →Robux Shop pets
The 150 pets that hatch in Robux Shop.
150 entries →Summer Camp Pass pets
The 7 pets that hatch in Summer Camp Pass.
7 entries →Guides
Beginner guide
What to spend your first money on, and the two mistakes that cost new players the most time.
Read →Pet crafting: Shiny, Rainbow and Neon
How the three crafting tiers work, what they cost you, and when the trade is worth making.
Read →World progression
All eleven gyms in order, what each one adds, and how to tell when you are ready to move.
Read →Every page on this site
Whatever you searched for, it is one tap from here.
Official surfaces and current checks
Where everything on this site traces back to, and when each one was last read by a person.
Official Roblox experience page
Source of record for the player count, visits, favourites, like ratio and the developer's last update time. When anything here disagrees with this page, this page wins.
Gym Star Simulator Wiki (Fandom)
Player-maintained wiki. The pet multipliers, trainer bonuses and world descriptions on this site are compiled from it. It is incomplete — the trainer list documents 5 of the 54 trainers the …
Rolimon's game tracker
Independent third-party tracker, useful for cross-checking the concurrent player figure against our own daily reading.
How this site works
Freshness first
Every figure carries the date it was read. The player counts, visits and codes on this site come from a check that ran on Oct 13, 2026 — not from a page written months ago and quietly restamped with this month's name.
Source hierarchy
Official Roblox data wins. Community wikis are used where nothing official exists, and they are labelled as community on the page that uses them. We never present a player's guess as an official number.
Measured, not copied
The daily player history and the observed release log exist because this site has been reading the game every day and storing what it saw. No other page about Gym Star Simulator publishes them, because you cannot copy a measurement you never took.
Fan-site clarity
Independent and unofficial. Not affiliated with Roblox Corporation or Gym Simulator Club, no payment from the developer, and no paid placements in any table or tier list. Full disclosure.