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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 ×2
    5. Bot LabBot Labdone 1:04 · 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 · 14 steps
    1. Windfor Air
    2. GraverobberGraverobber
    3. Windfor Air
    4. Wind ×2
    5. GraverobberGraverobber
    6. Wind ×2
    7. Construction BotCon bot
    8. GraverobberGraverobber
    9. Con turret
    10. Construction BotCon bot ×2
    11. Mex
    12. Energy storage
    13. TrasherTrasher
    14. ShipyardShipyarddone 3:19 · 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 · 16 steps
    1. GruntGrunt
    2. Twin GuardTwin Guard
    3. Mex
    4. Construction ShipCon ship
    5. Converter
    6. HerringMissile corvette
    7. Converter
    8. OppressorDestroyerdone 4:41 · typical 5:52
    9. Converter
    10. Mex
    11. Converter ×2
    12. Wind ×3
    13. Mex
    14. Wind
    15. RiptideFrigatedone 5:20 · typical 4:35
    16. Wind ×4
  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 · 85 steps
    1. Mex
    2. Wind ×4
    3. RiptideFrigate
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. Wind ×4
    6. GuardGuardfor unknown
    7. Wind
    8. RiptideFrigate
    9. Wind ×3
    10. GuardGuardfor unknown
    11. OppressorDestroyer
    12. Geothermal PowerplantGeodone 9:10 · typical 8:00
    13. HerringMissile corvette
    14. GuardGuardfor unknown
    15. HerringMissile corvette ×2
    16. GuardGuardfor unknown
    17. Death CavalryDeath Cavalry
    18. Con turret
    19. HerringMissile corvette
    20. Radar TowerRadar Tower
    21. OppressorDestroyer
    22. Wind ×3
    23. RiptideFrigate
    24. Wind ×3
    25. Construction ShipCon ship
    26. Wind ×2
    27. Converter
    28. Amphibious ComplexAmphibious Complexdone 9:56
    29. Converter ×2
    30. Con turret
    31. SalamanderSalamander
    32. Converter ×2
    33. Con turret
    34. Advanced Metal ExtractorT2 mexdone 10:52 · typical 9:22
    35. SalamanderSalamander
    36. Converter
    37. SalamanderSalamander ×2
    38. Advanced Metal ExtractorT2 mex ×2
    39. SalamanderSalamander ×2
    40. Mex
    41. Advanced Metal ExtractorT2 mex
    42. SalamanderSalamander
    43. Construction ShipCon ship
    44. HerringMissile corvette
    45. CoralCoral
    46. HerringMissile corvette
    47. ShipyardShipyarddone 12:28
    48. HerringMissile corvette
    49. Naval Construction Turret
    50. OppressorDestroyer ×2
    51. Advanced Metal ExtractorT2 mex
    52. Naval Construction Turret
    53. Wind
    54. Twin GuardTwin Guard
    55. Naval Construction Turret
    56. Wind
    57. Twin GuardTwin Guard
    58. Naval Construction Turret
    59. Wind
    60. OppressorDestroyer
    61. Twin GuardTwin Guard
    62. Wind
    63. Twin GuardTwin Guard
    64. Wind
    65. OppressorDestroyer
    66. Tidal
    67. Advanced Metal ExtractorT2 mex
    68. Tidal
    69. Wind
    70. RiptideFrigate
    71. Wind
    72. Twin GuardTwin Guard
    73. Tidal ×2
    74. Wind
    75. RiptideFrigate
    76. OppressorDestroyer
    77. Wind
    78. Death CavalryDeath Cavalry
    79. Wind
    80. Tidal
    81. Wind ×2
    82. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    83. Wind
    84. Twin GuardTwin Guard
    85. Naval Radar / Sonar TowerNaval Radar / Sonar Tower

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

37.0 OS · 06/08/2026

Open source match ↗

3 received units · includes a constructor
405 metal received · 52817 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