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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 · 976 distinct matches · 100 players · 83% of Cortex Geo sea games · team won 52% of 1095 · 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 976 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 1:06–1:26

    Some games also: wind for allies (49%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 4 steps
    1. Mex ×3
    2. Solar
    3. Wind ×2for Air
    4. Bot LabBot Labdone 1:07 · 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

    The example game in this phase · 9 steps
    1. Wind
    2. GraverobberGraverobber
    3. Construction BotCon bot
    4. Wind ×2
    5. Construction BotCon bot ×2
    6. Energy storage
    7. GraverobberGraverobber ×2
    8. Mex
    9. ShipyardShipyarddone 2:58 · 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 (48%) · 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 · 36 steps
    1. Construction ShipCon ship
    2. Con turret
    3. SupporterGunboat
    4. Converter
    5. Mex ×2
    6. SupporterGunboat
    7. Converter
    8. Mex
    9. SupporterGunboat
    10. Converter
    11. SupporterGunboat
    12. Mex
    13. Converter
    14. SupporterGunboat
    15. Mex
    16. ThistleThistle
    17. GuardGuard
    18. SupporterGunboat
    19. Wind
    20. Mex
    21. Wind
    22. SupporterGunboat
    23. Wind
    24. SupporterGunboat
    25. Wind ×2
    26. SupporterGunboat
    27. GuardGuard
    28. Mex
    29. Wind
    30. SupporterGunboat
    31. Wind
    32. OrcaSubmarinenot finished by 15:00 · typical 4:19
    33. Radar TowerRadar Tower
    34. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    35. Wind
    36. RiptideFrigatedone 5:15 · typical 4:35
  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
    • Guard2 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 · 130 steps
    1. Mex
    2. GuardGuard
    3. RiptideFrigate
    4. HerringMissile corvette
    5. Twin GuardTwin Guard
    6. OppressorDestroyerdone 6:32 · typical 5:52
    7. Radar TowerRadar Tower
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. Geothermal PowerplantGeodone 8:24 · typical 7:59
    10. ThistleThistle
    11. GuardGuard
    12. Mex
    13. GuardGuard
    14. Death CavalryDeath Cavalry
    15. Mex
    16. RiptideFrigate ×2
    17. HerringMissile corvette
    18. Construction ShipCon ship
    19. Mex
    20. Death CavalryDeath Cavalry
    21. Tidal ×4
    22. Radar TowerRadar Tower
    23. Naval Construction Turret
    24. Tidal
    25. Radar TowerRadar Tower
    26. Tidal
    27. GuardGuard
    28. Wind
    29. Tidal
    30. Bot LabBot Labdone 9:08
    31. Wind
    32. Naval Construction Turret
    33. ThistleThistle
    34. Naval Construction Turret
    35. WardenWarden
    36. Con turret
    37. ThistleThistle
    38. Seaplane PlatformSeaplane Platformdone 9:53
    39. Con turret ×2
    40. Construction BotCon bot
    41. GraverobberGraverobber ×2
    42. Wind ×2
    43. Dam BusterSeaplane bomber
    44. Wind
    45. GraverobberGraverobber
    46. Wind
    47. GraverobberGraverobber
    48. Wind
    49. GruntGrunt
    50. Advanced Metal ExtractorT2 mexdone 11:39 · typical 9:22
    51. Dam BusterSeaplane bomber
    52. Wind
    53. GruntGrunt ×2
    54. Wind
    55. GruntGrunt
    56. Dam BusterSeaplane bomber
    57. Wind
    58. GruntGrunt ×3
    59. Dam BusterSeaplane bomber
    60. Wind
    61. GruntGrunt
    62. Naval Metal Storage
    63. GruntGrunt ×2
    64. Wind
    65. Dam BusterSeaplane bomber
    66. GruntGrunt
    67. Wind
    68. GruntGrunt
    69. Wind
    70. GruntGrunt
    71. Wind
    72. Dam BusterSeaplane bomber
    73. Wind
    74. GruntGrunt
    75. Wind
    76. GruntGrunt
    77. Wind
    78. GruntGrunt
    79. Dam BusterSeaplane bomber
    80. Wind
    81. GruntGrunt
    82. Advanced Metal ExtractorT2 mex
    83. GruntGrunt
    84. Wind
    85. GruntGrunt ×4
    86. Wind
    87. GruntGrunt
    88. Wind
    89. GruntGrunt ×2
    90. Wind
    91. GruntGrunt ×2
    92. Wind
    93. GruntGrunt
    94. Wind
    95. GruntGrunt
    96. Wind
    97. GruntGrunt
    98. Wind
    99. GruntGrunt
    100. Wind
    101. GruntGrunt
    102. Wind
    103. GruntGrunt
    104. Wind
    105. GruntGrunt
    106. Wind
    107. GruntGrunt
    108. Wind ×2
    109. GruntGrunt
    110. Wind
    111. GruntGrunt
    112. Wind
    113. GruntGrunt ×2
    114. Wind
    115. GruntGrunt
    116. Advanced Metal ExtractorT2 mex
    117. GruntGrunt ×3
    118. Wind
    119. GruntGrunt ×2
    120. Advanced ShipyardAdvanced Shipyarddone 13:56
    121. GruntGrunt ×2
    122. Wind
    123. GruntGrunt ×5
    124. WatcherRadar plane
    125. Advanced Construction SubAdvanced Construction Sub
    126. PathfinderPathfinder
    127. Advanced Metal ExtractorT2 mex
    128. PathfinderPathfinder ×2
    129. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    130. BatSeaplane fighter

Counts are medians over the build's games: half of them build more, half fewer. The example game is Elpoloow's (35 OS, 26/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 72% 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 7:44 · 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

1095 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002900051
5:00410813052
6:005463440241
7:006945930551
8:0086091570904
9:001049124521351
10:001261236252061
11:001521948812901
12:001812163983761
13:002141473934451
14:002501686485371
15:002879197536300
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

Elpoloow

35.2 OS · 26/08/2026

Open source match ↗

4 received units · includes a constructor
362 metal received · 45007 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:26 · n=1084
Shipyard3:17Middle 50%: 3:02–3:33 · n=1089
Orca4:19Middle 50%: 3:54–5:00 · n=754
Riptide4:35Middle 50%: 4:08–5:20 · n=1063
Oppressor5:52Middle 50%: 5:08–6:35 · n=991
Geothermal Powerplant7:59Middle 50%: 7:01–9:00 · n=654
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=940

Played most by

sirniho122games of this buildSHOGVN92games of this buildOptimusprimenutt84games of this buildPRO_Rerory47games of this buildhihimik41games of this build