# CPU Capacity

[**Motherships** ](https://wiki.pulsar.game/assets/structures/mothership)have a **CPU capacity** stat that serves as a **supply cap for Units.**

Constructing and controlling a [Unit ](https://wiki.pulsar.game/assets/units)requires a certain amount of CPU. Different types of Units may have different CPU requirements. Also, as Units level up they will generally require more CPU.

A Unit cannot be constructed if the Mothership constructing it does not have enough CPU left to control it.

When a Unit is destroyed, it stops drawing CPU from the Mothership.

Leveling Up a Mothership will increase its CPU capacity.

<figure><img src="https://947043244-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FYRJBszPYaU4WUvkysO78%2Fuploads%2FXP4nStgewOU316adhq29%2Fimage.png?alt=media&#x26;token=e2a01da2-66e0-4c93-9e0e-6b607b1c1ce0" alt=""><figcaption></figcaption></figure>