Mevar is a star system that is part of the Yamatai Star Empire. Less than 19 light-years away from the Yamatai Star System, it is considered part of the Bard Cluster. Mevar has a population of about 325,000.

Mevar was originally a colony world of the Qel'noran. In YE 26, when a Qel'noran rebellion resulted in a retaliatory strike by the Star Army of Yamatai, the planet was evacuated and left mostly abandoned until it was re-colonized under the control of the Fifth Expeditionary Fleet.

In YE 29, the Mishhuvurthyar conquered the Bard Cluster, keeping Mevar under their control until their defeat by Yamatai in YE 30. Mevar was then released to the Yamatai Star Empire's control as part of the Intergalactic Armistice Agreement of YE 30 (IAA) signed at the International Relations Conference of YE 30.

After the Mishhuvurthyar were driven off the system was once again under the control of the Yamatai Star Empire. The system was under the control of the Fourth Fleet, and it was re-colonized primarily by former Yamatai Star Empire soldiers. After its reclamation, Mevar was designated to be an industrial world to support the Fourth Fleet

In YE 32 the colony was expanded by an influx of colonists from the outer planets of the Bard Cluster. The Fourth Fleet cannibalized materials and equipment from their damaged ships and created a fort on the planet and stationed soldiers on the planet. The Fourth Fleet assisted the planet's colonists to develop militias and equipped them with obsolete/surplus equipment to allow them to defend themselves.

In YE 33 the Fourth Fleet deployed 4SF Standard "Guriddo" System Deployment for the defense of Mevar.

The Yamatai Star Empire placed a global communications network of Emrys Satellites into orbit in YE 36.

In the year YE 37 Task Force 77 took Mevar as their base of operations.

In YE 38, Trinary Star Shipping established a storefront on Mevar.

Most of the life on Mevar is limited to the thriving ocean, which covers about 50% of the surface, giving the planet's land a rocky look and the ocean a dark teal color due to heavy algae. The surface is sparsely forested and savannah. There ware many sites visible from orbit where the Mishhuvurthyar were conducting massive strip mining. The surface of Mevar is also dotted with the ruins of Qel'noran villages and defensive tunnel systems, as well as the abandoned Mishhuvurthyar mining camps.

The Mevar system consists of:

• A F3 V Yellow-white Main Sequence star
• Mevar I (usually just called Mevar)
  • Atmosphere and temperatures suitable for humans
  • 33-hour day and a 105-day year.
• Mevar II, a rock planet with one moon
• Mevar III, an ice planet

Fort Mevar is the focal point of the planetary and system defenses. It is a Frontier Fort. It is commanded by Taisa Fiona Black.

• Mevar Core Worms