Lighthouse Project

Verified Timeline

Lore & Background

The International Space Elevator (ISEV) was built off the coast of western Usea near Erusea by order of former Osean president Vincent Harling. It functions as both a space elevator and a communications tower, converting atmospheric energy into energy. Its power is transmitted via microwave to two Arsenal Birds—Liberty and Justice—massive flying-wing airborne aircraft carrier drones that carry a large number of combat drones, advanced weaponry, and force fields. Harling presented the ISEV as a means to promote lasting peace, but Erusea saw it as a symbol of Osean imperialism infringing on their sovereignty. These resentments ultimately sparked the 2019 Lighthouse War between the Osean Federation and the Kingdom of Erusea. During the war, Erusea captured the ISEV and both Arsenal Birds in a surprise attack, with Harling still inside the ISEV. Trigger led a mission to extract Harling from the ISEV, but an Osean air-to-air missile struck Harling's rescue aircraft, killing him. Later, Osea and the IUN-PKF destroyed the Arsenal Bird Liberty using the sole remaining "Stonehenge" railgun. After a catastrophic global communications blackout caused by anti-satellite weapons, Dr. Schroeder traveled to the ISEV to upload Mihaly's flight data to a new generation of advanced Erusean combat drones.

In Their Own Story

The cockpit alarms screamed as the jet dipped beneath the cloud layer. Ahead, piercing through the twilight haze, stood the International Space Elevator—a jagged spire of steel and light humming with transmitted power. Blue beams lashed out from its core, connecting to something unseen in the stars above. The pilot gripped the stick, feeling the vibration of the tower's pulse through the airframe. It was a beacon of power for Erusea, but tonight, it would become a tombstone. Below, the ground trembled as secondary towers flared in sequence, each pulse rattling the canopy. The pilot's wingman's voice crackled over the radio: 'They're cycling the orbital relay—if we don't take it down in the next thirty seconds, that thing up there will fire on the fleet.' The targeting reticle glowed red. The trigger felt heavy. One missile, one shot—and the sky would fall silent.

Reader's Guide

The International Space Elevator (ISEV) is a critical strategic asset in the 2019 Lighthouse War between the Osean Federation and the Kingdom of Erusea. Built off the coast of western Usea near Erusea by order of former Osean president Vincent Harling, it converts atmospheric energy into energy and transmits power via microwave to the Arsenal Birds Liberty and Justice. These massive flying-wing airborne aircraft carrier drones carry combat drones, advanced weaponry, and force fields. Erusea captured the ISEV and both Arsenal Birds in a surprise attack, with Harling still inside. Trigger led a mission to extract Harling, but an Osean air-to-air missile struck Harling's rescue aircraft, killing him. Trigger was accused of firing the missile and transferred to Spare Squadron. Later, Osea and the IUN-PKF destroyed Liberty using the sole remaining "Stonehenge" railgun. After a catastrophic global communications blackout caused by anti-satellite weapons, Dr. Schroeder traveled to the ISEV to upload Mihaly's flight data to a new generation of advanced Erusean combat drones produced in automated factories. The ISEV remains a key objective for both sides throughout the war.

Did You Know?

• The International Space Elevator (ISEV) was built by order of former Osean president Vincent Harling, who framed it as promoting a lasting peace.
• The ISEV transmits power via microwave to the Arsenal Birds Liberty and Justice, which are massive flying-wing airborne aircraft carrier drones.
• Erusea captured the ISEV and both Arsenal Birds in a surprise attack, with former Osean president Vincent Harling still inside the ISEV.
• Trigger led a mission to extract Harling from the ISEV, but an Osean air-to-air missile struck Harling's rescue aircraft, killing him.
• After a catastrophic global communications blackout, Dr. Schroeder traveled to the ISEV to upload Mihaly's flight data to a new generation of advanced Erusean combat drones.

Release History and Platform Evolution

Released in early 2019 by Bandai Namco Entertainment, Ace Combat 7: Skies Unknown marked a significant resurgence for the franchise as the first mainline entry since 2014. Initially launching on PlayStation 4 and Xbox One, with a Windows version following shortly after, the title eventually expanded its reach to the Nintendo Switch in July 2024, becoming the series' debut on a Nintendo home console. Technologically, this installment represented a major shift by adopting Unreal Engine 4, distinguishing it from previous entries. The game's commercial performance has been exceptional, surpassing all predecessors to become the highest-selling title in the franchise with over seven million units sold across all platforms by January 2026. Its success paved the way for a confirmed sequel, Ace Combat 8: Wings of Theve, scheduled for release in October 2026.

Gameplay Mechanics and Accessibility

The game balances accessibility with depth by offering arcade-style flight dynamics alongside an optional Expert mode that enables realistic maneuvers like high-G turns and Cobra rolls. Players navigate a tech tree using Military Result Points to unlock twenty-eight base aircraft, including licensed real-world models and fictional superplanes like the X-02S Strike Wyvern. A unique environmental hazard system introduces clouds that obstruct vision, disable laser weapons through refraction, and cause icing or stalling if pilots linger too long. Lightning strikes further disrupt controls, adding a layer of atmospheric danger not seen in prior titles. Customization is strictly limited by weight constraints, allowing only eight simultaneous upgrades to enhance speed or survivability, with specific equipment restricted to either single-player or multiplayer modes.

Narrative Setting and the Lighthouse War

The storyline returns to the fictional Strangereal universe, focusing on the 2019 conflict known as the Lighthouse War between the Osean Federation and the Kingdom of Erusea. The plot follows Trigger, a pilot wrongly accused of murder who serves in a penal squadron amidst this geopolitical struggle. Central to the narrative is the International Space Elevator (ISEV), an energy-generating tower constructed by former Osean president Vincent Harling near Erusean territory. This strategic asset is defended by two colossal Arsenal Birds, Liberty and Justice, which serve as airborne carriers equipped with force fields and advanced weaponry. The backdrop involves a complex history of peace treaties and the restoration of the Erusean monarchy under the D'Elise family.

Mission Structure and Competitive Modes

In single-player campaigns, pilots engage in story-driven missions supported by AI wingmen who provide exposition and combat assistance. Before each sortie, players receive detailed briefings via a 3D map display outlining objectives, weather conditions, and enemy forces. Missions involve destroying air and surface targets or completing specific goals like intercepting IRBMs, with optional minigames for refueling or landing offering small currency rewards. The multiplayer suite operates independently of campaign progress, featuring Team Deathmatch and Battle Royale modes where players earn points by downing opponents. Scoring is weighted toward eliminating high-tier aircraft or top-performing rivals, ensuring a dynamic competitive environment where respawns allow continuous engagement until the timer expires.