The Scylania-class corvette was an advanced capital ship designed and produced by Syvatii Unlimited in the early 49,000s for the GACIAF Administration's navy. The ship was a part of the NACSD Program, based on the ASP-S120.1 test platform used by GACIAF's Astenh division to develop next-generation stealth technologies using data from analyzing Shadow Fleet ship components. Syvatii was tasked with taking information from the S120.1 and developing a small support ship which could act in both support and direct combat roles, making use of advanced sensor systems and stealth to gather information or strike opponents before withdrawing. Although the design team was initially based out of Kedha Casat, with GACIAF facilities at the Cuoa Shipyard in Tuan supporting development via the Hiloa Corridor, both GOIS and CEOSET raised security concerns, so many engineers and staff were moved to the Peth System. Development would continue at Peth up to final testing and integration of the production model prototypes, at which point a team at Etad Moric on the Stration Orbital Shipyard complex took over. The first Scylania-class corvette left the station in 48,889 ACT, with limited production until 48,896 ACT, by which a number of production lines at GACIAF systems across Ivesceel had been completed.

The Scylania-class was designed primarily as an attack corvette - with little armor or shields to take sustained fire, the corvette relied on mobility, stealth, and electronic warfare to avoid damage and ambush opponents. The ship's most important tool to accomplish this was a Syvatii AEI/FSCD-01204-Tasdei cloaking device, able to allow specific ranges of different emission types to either pass through or be absorbed. Supplementing stealth technologies, including a VATO-PHmd network and various sensor and communications jamming systems, let the Scylania-class almost totally avoid detection by anything except the most powerful sensor platforms. The ship could also use its ECM and EWAR equipment in a support function, suppressing the communications and scanning of hostile ships while supplying accurate data to any allies in local space. In combat, the Scylania's stealth capabilities allowed it to get within close range of a target and strike with a combination of laser fire from its 12 Ederra T2240i-nm laser cannons and 6 secondary CorT6/SU150.02 light laser cannons and 40 GAEDN/c T200i heavy anti-ship missiles, each able to vaporize a TAUFOG frigate-analog in a single hit. The Scylania-class could also act in a limited capacity as an escort ship, with 8 CCEA/s T501-1 anti-fighter beam turrets and 34 point defense cannons, as well as 150 GAEDN/c T156 multi-role missiles - also able to be used against capital ships - and another 150 GAEDN/d T105 anti-fighter missiles. Combined, the Scylania's stealth systems, electronic support capabilities, and weapons complement allowed it to strike instantaneously and disappear in combat, only to reappear halfway across a star system.