Advanced Collision System is a runtime Unreal Engine plugin for building gameplay collision without custom mesh authoring. It gives you one actor/component workflow that can switch between multiple shape types, so level designers can block movement, gate traversal, define arena bounds, create trigger-style collision regions directly in the editor, or build single-sided trigger overlaps that only fire from one direction.
The plugin includes five collision modes: Plane, Spline, Circle, Ngon, and SplineDefinedShape. Each mode exposes practical controls for size, point density, sampling precision, and sidedness. In production terms, that means you can build things like one-way walls, spline-aligned corridor barriers, circular hazard boundaries, and custom closed-loop collision areas while keeping setup consistent across levels.
This plugin is intended for teams that need collision to stay editable late in development. Instead of replacing hand-built meshes every time layout changes, designers can update collision behavior from component settings and keep iterating.
Use instructions can be located inside the plugin README.md file