The strongest source for World 3 is the official Roblox event page tied to the Fan per Step experience. At the July 12 check, it listed World 3, new Play Buttons, new skins, balance changes, improvements and additional unspecified content. The card also showed about 2.5K interested players, indicating active attention but not proving any gameplay requirement.
The displayed event window was July 14 at 04:00 through July 15 at 04:00 in a browser using the Asia/Shanghai locale. Roblox did not label the timezone in the captured display, so we do not convert it into a universal launch time. Open the event page or game page for the current countdown in your own locale.
Do not use Golden World or Candy Kingdom claims as a World 3 walkthrough. Golden World requirements came from a gameplay narration with explicitly unclear combined math. Candy Kingdom appeared as an off-sale official product/update signal on July 12, but its live-world meaning was not confirmed. Both remain useful watch items, not instructions.