Spirits are uniquely identified by their distinctive tuning fork shape. Each "arm" is a troop deployment pod capable of hosting a number of soldiers, while the main cockpit is located at the rear of the ship, and a plasma cannon is mounted below. The space between the two troop bays can be use to carry vehicles and other equipment. Some Spirits are equipped with gravity lifts to deploy troops without risking opening their troop bays.
- Type-25 Spirit: A variant commonly employed by the Covenant, notably during the Fall of Reach and Battle of Installation 04.
- Type-28 Spirit: Another variant fielded by the Covenant. This variant is equipped with a gravity lift that leads into the cockpit directly.
- Type-57 Spirit: A post-war variant fielded by the Swords of Sanghelios and Jul 'Mdama's Covenant. This variant has a distinctly more organic aesthetic.
- Banished Spirit: A modified Spirit employed by the Banished. This variant has alterations to its gravity lifts, allowing it to transport entire prefabricated buildings to the battlefield without issue.