Sky Siege hard mode

SKY SIEGE — A Century of War

One hundred waves. Ten eras of flight. You start in a canvas-and-wood Sopwith Camel in 1917 and fight your way to the stars — and every era boss you shoot down unlocks the next aircraft in history.

Climb the timeline:

🛩️ 1917 — Sopwith Camel

✈️ 1944 — P-51 Mustang

🚀 1951 — F-86 Sabre (the first jet)

💥 1965 — F-4 Phantom

🚁 1969 — AH-1 Cobra gunship

⚡ 1974 — F-14 Tomcat

🔺 2005 — F-22 Raptor

🌑 2015 — Stealth Wing

🛸 2038 — Hypersonic Drone

✦ 2099 — X-1 Starfighter, armed with a laser lance

Each aircraft flies differently, carries its own upgrade tree, and has a signature weapon — tracer crits, homing rockets, piercing rounds, bomb bays, regenerating shields, and finally a continuous laser beam. Every era boss has its own attack patterns and enrages when wounded. Reach Wave 100 and the Visitor will be waiting.

FEATURES

• 100 waves spanning a century of aviation, from biplanes to starfighters

• 10 unlockable aircraft, each with unique handling, upgrades, and abilities

• 10 era-matched bosses with distinct bullet patterns and enrage phases

• A salvage economy and hang