After Sticky Tools is unlocked, place a supported panel or tool so that it touches the ground or another object that is already fixed; the contact lets it remain in place instead of being knocked around by physics. Build outward from a stable base and confirm each piece before adding the next. Sticky Tools are not the same as Slick Panel, and the exact supported-object list can change by version.
Unlock Sticky Tools first
Normal placement or grid snapping does not automatically mean an object has the Sticky Tools behavior. Confirm the upgrade is available before troubleshooting a panel that keeps falling or moving. The developer FAQ and independent gameplay both identify Sticky Tools as the feature responsible for fixed structures.
Make contact with a fixed surface
The object should touch the ground or another panel or tool that is already fixed. A visible gap, even when the alignment looks close, can leave the new piece unsupported. Place one object, release it, and apply a small normal collision test before trusting it as the base for more construction.
Build a stable chain
Start at the floor and extend the structure in short sections so that every new piece has a clear fixed contact. This approach works well for panel tunnels and for fans that must hold a consistent angle against repeated products. If a later piece fails, inspect the nearest contact instead of dismantling the entire structure.
Separate sticky placement from snapping
Snapping helps align objects to a grid or valid surface, while Sticky Tools keep supported objects from moving after the contact condition is met. A green placement highlight can confirm an attachment target, but it does not replace the need for the Sticky upgrade when permanent fixing is the goal. If snapping prevents the desired placement, test the panel with Snap disabled and then confirm the physical fixed state.
Account for version differences
An older Demo developer comment listed a narrower set of sticky objects and also indicated that the scope might expand. That historical list should not be published as a permanent current limit. Use the current game's placement feedback for the object in hand, and mark an unsupported or changed tool as 待确认 until a current source verifies it.
Sources used for this answer
These links are the accepted evidence set for this page. Player methods are kept separate from official or developer statements, and unsupported details stay marked 待确认.