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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

The role's default economy-first play: bot lab then shipyard in the cove, quick frigate/submarine/destroyer navy to contest sea and hold the coast, transitioning into whatever the sea fight needs.

Usually shipyard in the cove (98%)

#naval #eco · 993 distinct matches · 101 players · 83% of Cortex Geo sea games · team won 52% of 1114 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 3:18

  1. Open 3 mex, wind and solar, then Bot Lab.
  2. Get a BP and costal torpedo launcher up before the Shipyard.
  3. Put up Shipyard once you can defend it.
  4. Push out "submarine" and "frigate" to contest the sea.
  5. Add geothermal to fund the fleet transition into "destroyer", "missile corvette".

Phase by phase

TYPICAL OF ITS 993 GAMES
  1. 1
  2. 2
  3. 3
  4. 4
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 Bot Lab

    Economy
    • Metal Extractor3Mex
    • Wind Turbine3Wind
    Order
    1. Bot LabBot Lab after 3 mex, 3 winddone ~1:12, middle half 1:07–1:26

    Some games also: wind for allies (49%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 5 steps
    1. Mex ×3
    2. Wind ×4
    3. Wind ×2for Air
    4. Energy storage
    5. Bot LabBot Labdone 1:40 · typical 1:12
  2. 2

    Bot Lab to Shipyard

    Economy
    • Metal Extractor1Mex
    • Wind Turbine2Wind
    Order
    1. ShipyardShipyard after 4 mex, 5 wind, 1 energy storagedone ~3:17, middle half 3:02–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (46%) · trasher (39%) · energy storage (34%) · wind for allies (32%)

    By 2:51 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 9 steps
    1. Construction BotCon bot ×2
    2. GraverobberGraverobber ×2
    3. Mex
    4. TrasherTrasher ×2
    5. GruntGrunt ×2
    6. Construction BotCon bot
    7. Mex ×2
    8. Radar TowerRadar Tower
    9. ShipyardShipyarddone 3:39 · typical 3:17
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Builders
    • Construction Ship1 Con ship
    Army
    • Riptide2 Frigate
    • Orca1 Submarine
    Other
    • Radar Tower1 Radar Tower

    Some games also: Guard (49%) · wind (49%) · missile corvette (48%) · destroyer (46%) · gunboat (40%)

    By 5:00 in all: 8 mex · 6 wind · 1 energy storage · 1 con turret

    The example game in this phase · 15 steps
    1. Wind
    2. GuardGuard
    3. RiptideFrigatedone 3:53 · typical 4:35
    4. Wind
    5. Construction ShipCon ship
    6. OppressorDestroyernot finished by 15:00 · typical 5:52
    7. GuardGuard
    8. Wind
    9. OrcaSubmarinedone 4:31 · typical 4:19
    10. Mex
    11. OppressorDestroyer
    12. Wind
    13. Mex ×2
    14. GuardGuard
    15. Wind
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine8Wind
    • Energy Converter1Converter
    Builders
    • Construction Turret1 Con turret
    • Death Cavalry2 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Guard1 Guard
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (47%) · Thistle (40%) · submarine (34%)

    By 10:00 in all: 10 mex · 15 wind · 1 geo · 4 converter · 1 energy storage · 2 con turret

    The example game in this phase · 140 steps
    1. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    2. Mex
    3. Wind
    4. RiptideFrigate
    5. Converter
    6. Radar TowerRadar Tower
    7. Wind
    8. ThistleThistle
    9. Mex
    10. HerringMissile corvette
    11. Wind
    12. Converter
    13. RiptideFrigate
    14. Con turret
    15. Wind
    16. Converter
    17. Wind
    18. RiptideFrigate
    19. UrchinUrchin
    20. Wind
    21. Naval Construction Turret
    22. Converter
    23. HerringMissile corvette
    24. OppressorDestroyer
    25. Wind ×2
    26. UrchinUrchin
    27. Wind ×2
    28. Converter
    29. Advanced Metal ExtractorT2 mexdone 8:25 · typical 9:21
    30. Wind ×2
    31. Naval Construction Turret
    32. Wind
    33. UrchinUrchin
    34. Wind ×4
    35. Converter
    36. Wind ×2
    37. OppressorDestroyer
    38. Wind
    39. Advanced Metal ExtractorT2 mex
    40. Wind ×2
    41. Converter
    42. UrchinUrchin
    43. Wind ×2
    44. Advanced Metal ExtractorT2 mex
    45. Wind ×3
    46. Converter
    47. Wind
    48. OppressorDestroyer
    49. Wind ×4
    50. Advanced Metal ExtractorT2 mex
    51. OppressorDestroyer
    52. Wind
    53. Converter
    54. Wind ×4
    55. HerringMissile corvette
    56. Wind
    57. OppressorDestroyer
    58. Wind
    59. Converter
    60. Wind ×2
    61. HerringMissile corvette
    62. Wind
    63. OppressorDestroyer
    64. Wind ×2
    65. Advanced Metal ExtractorT2 mex
    66. Wind
    67. Converter
    68. Wind
    69. Death CavalryDeath Cavalry
    70. Wind ×3
    71. Death CavalryDeath Cavalry
    72. Wind ×3
    73. Converter
    74. HerringMissile corvette
    75. Wind
    76. OppressorDestroyer
    77. Wind
    78. Advanced Metal ExtractorT2 mex
    79. Wind ×3
    80. HerringMissile corvette
    81. Wind
    82. Converter
    83. OppressorDestroyer
    84. Wind ×4
    85. Naval Construction Turret
    86. Wind ×2
    87. Death CavalryDeath Cavalry
    88. Naval Construction Turret
    89. Converter
    90. Naval Metal Storage
    91. Wind ×2
    92. Naval Construction Turret
    93. Wind ×2
    94. Naval Construction Turret
    95. Wind
    96. Death CavalryDeath Cavalry
    97. Advanced ShipyardAdvanced Shipyarddone 13:25
    98. HerringMissile corvette
    99. Converter
    100. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    101. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 14:58
    102. Wind
    103. HerringMissile corvette
    104. Advanced Construction SubAdvanced Construction Sub
    105. Tidal
    106. HerringMissile corvette
    107. Wind
    108. Converter
    109. Tidal
    110. PathfinderPathfinder
    111. OppressorDestroyer
    112. Tidal
    113. PathfinderPathfinder
    114. Tidal
    115. PathfinderPathfinder
    116. Wind
    117. Tidal
    118. HerringMissile corvette
    119. PhantasmRadar jammer ship
    120. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:21
    121. Tidal
    122. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    123. Converter
    124. PhantasmRadar jammer ship
    125. Tidal
    126. OppressorDestroyer
    127. Wind
    128. Tidal
    129. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    130. HerringMissile corvette
    131. Mex
    132. Tidal
    133. HerringMissile corvette
    134. Tidal ×2
    135. HerringMissile corvette
    136. Tidal
    137. Converter
    138. Tidal
    139. OppressorDestroyer
    140. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is ITz_HonestAbee's (35 OS, 01/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 71% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 83% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 75% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 7:43 · in 89% 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

05k10k
0:005:0010:0015:00

metal

Own metal lost

02.5k5k7.5k
0:005:0010:0015:00

metal

1114 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002899051
5:00410913552
6:005461441242
7:006946931551
8:0086181570906
9:001049724501367
10:001261036252062
11:001521848702893
12:001810063303773
13:002136173614451
14:002499586015363
15:002874196886321
WHAT THE NUMBERS SAY

Standard Cortex geo sea sits at an even 50% win rate, trading a slower start for a big resource lead by 15:00.

  • + Metal produced hits 28451 by 15:00, well above both front roles
  • + Own metal lost stays far below enemy metal destroyed at every checkpoint
  • − Only 50% team win rate, the lowest of these six builds
  • − T2 factory only completes in 40% of games by 12:53
THE EXAMPLE YOU ARE READING

ITz_HonestAbee

35.0 OS · 01/10/2026

Open source match ↗

15 received units · includes a constructor
1 metal received · 33294 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:07–1:26 · n=1103
Shipyard3:17Middle 50%: 3:02–3:33 · n=1108
Orca4:19Middle 50%: 3:54–5:00 · n=769
Riptide4:35Middle 50%: 4:07–5:20 · n=1081
Oppressor5:52Middle 50%: 5:08–6:36 · n=1009
Geothermal Powerplant8:00Middle 50%: 7:01–9:02 · n=664
Advanced Metal Extractor9:21Middle 50%: 8:45–10:10 · n=955

Played most by

sirniho123games of this buildSHOGVN94games of this buildOptimusprimenutt84games of this buildPRO_Rerory48games of this buildhihimik41games of this build