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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 · 969 distinct matches · 100 players · 83% of Cortex Geo sea games · team won 52% of 1087 · 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 969 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 · 5 steps
    1. Mex ×2
    2. Wind
    3. Mex
    4. Wind ×2for Air
    5. Bot LabBot Labdone 1:05 · 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 · 15 steps
    1. Wind
    2. GraverobberGraverobber ×2
    3. Construction BotCon bot
    4. GraverobberGraverobber
    5. Wind ×3
    6. Construction BotCon bot
    7. Con turret
    8. Construction BotCon bot
    9. Mex
    10. Energy storage
    11. TrasherTrasher
    12. GruntGrunt
    13. Converter
    14. Wind
    15. ShipyardShipyarddone 3:26 · 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 (41%)

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

    The example game in this phase · 22 steps
    1. Converter
    2. Wind ×2
    3. Converter
    4. Wind
    5. Mex
    6. Wind ×3
    7. OrcaSubmarinedone 3:47 · typical 4:19
    8. Wind
    9. Converter
    10. Wind
    11. Construction ShipCon ship
    12. Wind
    13. Mex
    14. Wind
    15. HerringMissile corvette
    16. Converter ×2
    17. Mex
    18. Converter
    19. OppressorDestroyerdone 4:59 · typical 5:52
    20. Converter
    21. Mex
    22. 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
    • Guard2 Guard
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (48%) · 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 · 110 steps
    1. RiptideFrigatedone 5:18 · typical 4:35
    2. Wind ×2
    3. RiptideFrigate
    4. Wind
    5. RiptideFrigate
    6. Wind
    7. Death CavalryDeath Cavalry
    8. Wind
    9. Geothermal PowerplantGeodone 8:25 · typical 8:00
    10. Wind
    11. Construction ShipCon ship
    12. Wind
    13. Mex
    14. HerringMissile corvette
    15. Wind
    16. Naval Construction Turret
    17. OppressorDestroyer
    18. Mex
    19. Wind ×6
    20. RiptideFrigate
    21. Wind
    22. RiptideFrigate
    23. Wind ×2
    24. RiptideFrigate
    25. OppressorDestroyer
    26. Death CavalryDeath Cavalry
    27. Wind
    28. OppressorDestroyer
    29. Advanced Metal ExtractorT2 mexdone 9:34 · typical 9:22
    30. Wind
    31. RiptideFrigate
    32. Death CavalryDeath Cavalry
    33. Wind
    34. Death CavalryDeath Cavalry
    35. RiptideFrigate
    36. Wind
    37. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    38. Death CavalryDeath Cavalry
    39. Wind
    40. Advanced Metal ExtractorT2 mex
    41. HerringMissile corvette
    42. Wind
    43. HerringMissile corvette
    44. Construction ShipCon ship
    45. HerringMissile corvette
    46. Wind
    47. HerringMissile corvette
    48. Advanced Metal ExtractorT2 mex
    49. OppressorDestroyer
    50. Wind
    51. Naval Construction Turret
    52. RiptideFrigate ×2
    53. Wind
    54. Tidal
    55. RiptideFrigate
    56. Advanced ShipyardAdvanced Shipyarddone 12:00
    57. RiptideFrigate
    58. Wind
    59. Advanced Metal ExtractorT2 mex
    60. Naval Construction Turret
    61. Wind
    62. RiptideFrigate
    63. Naval Construction Turret ×2
    64. Wind
    65. Naval Construction Turret
    66. PhantasmRadar jammer ship
    67. DespotBattleshipdone 12:56
    68. Wind
    69. Wind
    70. Advanced Metal ExtractorT2 mex
    71. Wind
    72. BuccaneerCruiser ×2done 13:12
    73. Wind
    74. Arrow StormAnti-air shipdone 13:29
    75. Advanced Metal ExtractorT2 mex
    76. Construction ShipCon ship
    77. BuccaneerCruiser
    78. Death CavalryDeath Cavalry
    79. Wind
    80. Naval Construction Turret
    81. BuccaneerCruiser
    82. Death CavalryDeath Cavalry
    83. Naval Construction Turret
    84. Wind
    85. Tidal
    86. Death CavalryDeath Cavalry
    87. Tidal
    88. BuccaneerCruiser
    89. Tidal
    90. Death CavalryDeath Cavalry
    91. Tidal ×2
    92. Wind
    93. Death CavalryDeath Cavalry
    94. Tidal
    95. DespotBattleship
    96. Tidal
    97. Death CavalryDeath Cavalry
    98. Tidal
    99. Wind
    100. Tidal
    101. Wind ×2
    102. Death CavalryDeath Cavalry
    103. Wind
    104. Tidal
    105. Wind
    106. Tidal
    107. Death CavalryDeath Cavalry
    108. Tidal
    109. Wind ×2
    110. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is El_Turco's (37 OS, 06/08/2026); 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

1087 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002902051
5:00410913252
6:005464441242
7:006945931551
8:0086141570905
9:001049124521361
10:001260736252071
11:001521748812914
12:001812163983790
13:002141673894451
14:002503086445371
15:002879197626321
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

El_Turco

37.2 OS · 06/08/2026

Open source match ↗

77 received units · includes a constructor
238 metal received · 68534 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=1076
Shipyard3:17Middle 50%: 3:02–3:33 · n=1081
Orca4:19Middle 50%: 3:54–5:00 · n=752
Riptide4:35Middle 50%: 4:08–5:21 · n=1055
Oppressor5:52Middle 50%: 5:09–6:35 · n=983
Geothermal Powerplant8:00Middle 50%: 7:01–9:01 · n=651
Advanced Metal Extractor9:22Middle 50%: 8:46–10:10 · n=932

Played most by

sirniho121games of this buildSHOGVN90games of this buildOptimusprimenutt84games of this buildPRO_Rerory47games of this buildhihimik41games of this build