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Air / Cortex / Economy first / OBSERVED BUILD

Standard air

Cortex Air build order · Supreme Isthmus

Economy-first air build: Aircraft Plant then Advanced Metal Extractor and Fusion Reactor, making transports and scouts for allies while transitioning into fighters and occasional bombers over the whole game.

Usually transports first (78%)

#eco #air #team support · 1506 distinct matches · 252 players · 81% of Cortex Air games · team won 46% of 1811 · Recently observed

HOW TO PLAY IT

Key timing: Aircraft Plant by 1:24

  1. Open 3 mex and wind, then drop Aircraft Plant early.
  2. Finish Aircraft Plant and start fighters for scouting and defense.
  3. Eat the Aircraft Plant once production needs outgrow it.
  4. Get Advanced Metal Extractor up to scale eco.
  5. Bring Fusion Reactor online and keep feeding transports, scouts, fighters to allies.

Phase by phase

TYPICAL OF ITS 1506 GAMES
  1. 1
  2. 2
  3. 3
PLAY THE OPENING

Follow the example game's first 6:00 step by step: what to build now, what comes next, and where it goes. At 1× it keeps pace with your own game.

  1. 1

    Up to the Aircraft Plant

    Economy
    • Metal Extractor3Mex
    • Wind Turbine4Wind
    Order
    1. Aircraft PlantAircraft Plant after 3 mex, 4 winddone ~1:26, middle half 1:14–1:35

    Some games also: energy storage (38%)

    By 1:07 in all: 3 mex · 4 wind

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×5
    3. Aircraft PlantAircraft Plantdone 1:21 · typical 1:26
  2. 2

    Aircraft Plant to 5:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine9Wind
    • Wind Turbine3Wind
    Builders
    • Construction Turret2 Con turret
    • Construction Aircraft1 Con aircraft
    Army
    • Valiant5 Valiant
    • Hercules2 Light transport for allies
    • Finch2 Finch for allies
    • Finch1 Finch
    • Hephaestus1 Heavy transport for allies

    Some games also: shuriken (49%) · energy storage (45%) · converter (44%) · light transport (40%)

    By 5:00 in all: 3 mex · 1 mex · 13 wind · 3 wind · 1 energy storage · 2 con turret

    The example game in this phase · 27 steps
    1. Wind
    2. FinchFinchfor Geo sea
    3. Wind ×2
    4. FinchFinchfor Beach sea
    5. Wind ×2
    6. HerculesLight transportfor Geo sea
    7. FinchFinch
    8. HephaestusHeavy transportfor Beach sea
    9. Wind
    10. ValiantValiant
    11. Energy storage
    12. ValiantValiantfor Geo
    13. Wind ×2
    14. HerculesLight transportfor Tech
    15. FinchFinch
    16. ShurikenShuriken
    17. HerculesLight transportfor Tech
    18. Mex
    19. ValiantValiantfor Geo
    20. ValiantValiant
    21. Construction AircraftCon aircraft ×2
    22. Wind
    23. ValiantValiantfor Geo
    24. Con turret ×2
    25. Construction AircraftCon aircraft
    26. Wind
    27. Converter
  3. 3

    5:00 to 10:00

    Economy
    • Wind Turbine21Wind
    • Wind Turbine5Wind
    • Energy Converter6Converter
    Order
    1. Aircraft PlantEat Aircraft Plant
    2. Aircraft PlantAircraft Plant after 19 wind, 18 wind, 7 converterin 58% of games
    Builders
    • Construction Turret3 Con turret
    Army
    • Valiant9 Valiant

    Some games also: shuriken (47%) · fusion (38%) · con aircraft (35%) · light transport (31%)

    By 10:00 in all: 3 mex · 1 mex · 25 wind · 20 wind · 8 converter · 1 energy storage

    The example game in this phase · 110 steps
    1. Converter
    2. Wind
    3. Converter
    4. Converter
    5. ValiantValiantfor Geo
    6. Wind
    7. Converter
    8. Wind ×2
    9. ValiantValiantfor Geo
    10. Converter
    11. Wind
    12. ValiantValiantfor Geo
    13. Converter
    14. Converter
    15. Wind
    16. ValiantValiantfor Geo
    17. Wind
    18. Converter
    19. Converter
    20. Converter
    21. ValiantValiantfor Geo
    22. Converter
    23. Wind
    24. ValiantValiant ×2for Geo
    25. Wind
    26. Converter
    27. Wind
    28. ValiantValiantfor Geo
    29. Wind
    30. Converter
    31. Wind
    32. Converter
    33. ValiantValiantfor Geo
    34. Wind ×3
    35. Converter
    36. ValiantValiantfor Geo
    37. Advanced Metal ExtractorT2 mexdone 7:39 · typical 6:54
    38. Wind ×2
    39. ValiantValiantfor Geo
    40. Wind
    41. Wind
    42. Wind ×2
    43. Advanced Metal ExtractorT2 mex
    44. ValiantValiant
    45. Con turret
    46. Wind
    47. FinchFinch
    48. ValiantValiant
    49. Wind
    50. ValiantValiant
    51. Advanced Metal ExtractorT2 mex
    52. Wind
    53. ValiantValiant
    54. Wind
    55. ValiantValiant
    56. Wind ×2
    57. ValiantValiant
    58. Wind
    59. ValiantValiant
    60. Wind
    61. ValiantValiant
    62. Wind
    63. ValiantValiant
    64. Wind
    65. Advanced Metal ExtractorT2 mex
    66. Con turret
    67. ValiantValiant
    68. Wind ×3
    69. ValiantValiant
    70. Wind
    71. Con turret
    72. Wind
    73. ValiantValiant
    74. Wind ×2
    75. ValiantValiant
    76. Radar TowerRadar Tower
    77. Wind
    78. ValiantValiant
    79. Wind
    80. ValiantValiant ×2
    81. Wind
    82. ValiantValiant ×2
    83. Wind
    84. ValiantValiant ×2
    85. Wind
    86. Fusion ReactorFusiondone 11:40 · typical 10:53
    87. Wind
    88. ValiantValiant
    89. Wind ×3
    90. ValiantValiant
    91. Wind ×3
    92. ValiantValiant
    93. CitadelAnti-nukenot finished by 15:00
    94. ValiantValiant
    95. Wind
    96. ValiantValiant
    97. Wind
    98. ValiantValiant
    99. Wind
    100. ValiantValiant
    101. Wind ×2
    102. ValiantValiant
    103. Wind ×2
    104. Con turret
    105. ValiantValiant
    106. Wind ×2
    107. Con turret
    108. Wind ×4
    109. ValiantValiant
    110. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is optimusprime3000's (31 OS, 01/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Finch2 Finch to Geo sea or Beach seafirst at 1:50 · in 96% of games
  • Hercules3 Light transport to Tech or Geo sea or Beach seafirst at 2:06 · in 99% of games
  • Hephaestus1 Heavy transport to Beach sea or Pond or Techfirst at 2:23 · in 72% of games

You get

  • Wind Turbine3 Wind from Beach sea or Geo seafirst at 1:37 · in 64% of games
  • Wind Turbine3 Wind from Beach sea or Geo sea or Pondfirst at 1:42 · in 46% of games
  • Construction Bot1 Con bot from Techfirst at 2:23 · in 88% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 6:05 · in 96% of games

How it plays out

Typical game of this build, running totals by minute

Metal produced

010k20k30k
0:005:0010:0015:00

metal

Enemy metal destroyed

01k2k
0:005:0010:0015:00

metal

Own metal lost

01k2k3k
0:005:0010:0015:00

metal

1811 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039200
2:0092300
3:00145600
4:002052051
5:0027635173
6:003707102124
7:005089146167
8:006902190219
9:009284230270
10:0011758292380
11:0014356369536
12:0017069512781
13:00198597811102
14:002270412641689
15:002573618132420
WHAT THE NUMBERS SAY

Standard air play wins less than half its games, with very low combat losses and kills since the role mostly supports rather than fights.

  • + Own metal lost stays very low, only 2701 by 15:00.
  • + Metal production reaches 25740 by 15:00, a strong support economy.
  • − Team wins under half of games (47%).
  • − Enemy metal destroyed stays low at 2097 by 15:00, showing little direct impact.
THE EXAMPLE YOU ARE READING

optimusprime3000

31.3 OS · 01/10/2026

Open source match ↗

7 received units · includes a constructor
90 metal received · 30853 energy received

Allied construction assistance is unknown. Timings are observations, not a promise of solo reproducibility.

Typical milestones

Aircraft Plant1:26Middle 50%: 1:14–1:35 · n=1811
Advanced Metal Extractor6:54Middle 50%: 6:27–7:26 · n=1751
Fusion Reactor10:53Middle 50%: 9:45–12:17 · n=1159

Played most by

TheGeneraI114games of this buildDad_The_Speedrunner72games of this buildHunfore62games of this buildDRM52games of this buildMilkdragon52games of this build