# Collision detection for tiles

> Enable collision detection on a tilemap so that GameObjects with a Collider 2D component collide with the tiles.

Enable collision detection on a tilemap so that GameObjects with a Collider 2D component collide with the tiles.

| **Topic**                                                                                                          | **Description**                                                                                                                                               |
| ------------------------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [Enable collision detection for tiles](/engine/6000.0/manual/unity2d/tilemaps/tilemap-collider-2d/2d.md)           | Add a Tilemap Collider 2D component to a tilemap, choose which tiles collide, and merge shapes with a Composite Collider 2D component for better performance. |
| [Tilemap Collider 2D component reference](/engine/6000.0/manual/unity2d/tilemaps/tilemap-collider-2d/reference.md) | Explore the properties you can use to generate collision shapes for the tiles on a tilemap.                                                                   |

## Additional resources

* [Tilemap component reference](/engine/6000.0/manual/unity2d/tilemaps/reference/tilemap.md)
* [Collider 2D](/engine/6000.0/manual/unity2d/2d-physics/collider-2d.md)
* [Composite Collider 2D component reference](/engine/6000.0/manual/unity2d/2d-physics/collider-2d/composite-collider-2d/reference.md)