Which Mods Need It in Structure Gel API

Install Structure Gel API whenever a mod you use lists it as a dependency. If it is missing, those mods will fail to load and the game will report a missing-dependency error for the mod id structure_gel.

• Blue Skies is built directly on Structure Gel API - its dimension portals and its many generated structures and dungeons use the library's portal framework and structure system. Blue Skies will not run without it.
• Other structure- and dimension-heavy mods from the same ecosystem also depend on it.

Because it is a shared dependency, the rule of thumb is simple: add Structure Gel API when a mod tells you to, and leave it out otherwise. The mod that requires it provides the actual structures, dimensions, and content.