Free
With Ads
Rating summary
About
Build your drone, then fly it into battle.
COBALT NINE is a 3D flight action game where the aircraft you assemble takes on city routes, enemy formations and changing mission objectives.
Build the craft you want to fly
Combine frames, rotors, weapons, armor and power parts. Balance speed, durability, firepower and energy, then develop your loadout with collected parts and upgrade materials.
Fight in three dimensions
Turn between towers, follow forest routes and fly through canyons. Climb, descend and boost to change position and avoid incoming attacks. Automatic targeting and firing work alongside active combat skills, keeping flight and combat connected.
Choose your modules between objectives
Pick a module at launch and after completing an objective. Chain explosions, boost attacks, combat repairs and dodge counters offer different ways to approach the current sortie. See what comes next and choose an effect that fits your craft.
200 operations. 619 objective sections.
Each operation connects two to four objectives. Nine objective types combine formation battles, route runs, escapes, pursuit, interception, stronghold attacks, relay links, salvage recovery and courier escorts. Protect a moving courier, destroy shield generators before attacking a target, or clear enemies away from a relay to keep the link going. Short objective sequences give each sortie a clear set of goals.
Read the route ahead
Check a target's distance and altitude difference, with separate waypoint guidance when a route around obstacles is needed. The interface is available in English and Korean.
Ad information
The game includes optional rewarded ads and interstitial ads after some defeats. Unavailable ads are skipped. Supply drop rates and guarantee conditions are shown in the game.
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What's New in COBALT NINE
2.4.0
September 7, 2026
Reworked all 200 operations into 619 objective sections. - Expanded mission sequences with escorts, salvage and relay objectives. - Added module choices at launch and between objectives. - Improved target position, distance, altitude and waypoint guidance, and adjusted time limits. - Refined drone parts, environments, combat effects and mobile UI. - Added a new app icon and cover artwork. - Improved preparation for first sorties and restarts, including first-use weapon effects.
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