Parts
An existing cylinder variant kept next to Quarter Cylinder.
![Half Cylinder in [UPDATE!] Obby Creator](/media/optimized/92995d4231f1e1a1bf84f97c-498.webp)
Half Cylinder: An existing cylinder variant kept next to Quarter Cylinder. Get it by Add it from the cylinder variants. Use it to Use it for arches and tunnels. Quarter Cylinder is the newer, smaller slice.
The developer referred to Half Cylinder as an existing variant that should remain beside Quarter Cylinder. An add date was not in the October 2026 note.
| Fact | Value |
|---|---|
| Family | Shape |
| Access | Basic custom shapes |
| Introduced | Already present when Quarter Cylinder was added |
Add it from the cylinder variants.
Use it for arches and tunnels. Quarter Cylinder is the newer, smaller slice.
An Obby ID identifies a player-made obby, showcase, or cart ride. Open Load Obby, search the ID or the creation name, and load the match. It does not grant Cash, Gems, or parts.
The developer update log does not publish a promo-code list, and no code string was supplied for this game. Do not type your Roblox password into a site that promises codes. If the game later adds a redemption control, it will be inside the official experience.
On 21 August 2024 the developer set a 600-part base, plus 100 parts for Whirlpool Studio group members and milestone rewards for likes and playtime. Open the trophy icon beside the Part Limit counter to see your own milestones. Later logs raised the purchasable cap and, on 9 October 2026, granted 100 parts to existing players who rejoin.
The 9 October 2026 log added six parts, a repeatable 15-minute Advanced Tools trial from a video ad, wider plots, new edit handles, a Sound Search plugin, sponsored gates, and forced first person. Buttons can activate most parts, but not other buttons. A 10 October follow-up changed Donation Parts so they open the donation screen.
The game description says you can build alone or with friends. Shared edit access can change the build, so only add people you trust, and use the numbered revert screen if a change needs to be rolled back.