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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
    5. Bot LabBot Labdone 0:58 · 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 · 31 steps
    1. Wind
    2. GraverobberGraverobber
    3. Wind
    4. GraverobberGraverobber
    5. Wind
    6. Windfor Air
    7. Construction BotCon bot
    8. Windfor Air
    9. GraverobberGraverobber
    10. Construction BotCon bot
    11. Con turret
    12. Energy storage
    13. Construction BotCon bot
    14. Mex
    15. TrasherTrasher
    16. GruntGrunt ×2
    17. TrasherTrasher
    18. GruntGrunt
    19. Wind ×2
    20. Converter
    21. Wind ×2
    22. Mex
    23. JellyfishJellyfish
    24. Wind ×2
    25. Converter
    26. Wind ×3
    27. Con turret
    28. Converter
    29. Mex
    30. Converter ×2
    31. ShipyardShipyarddone 4:14 · 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 · 11 steps
    1. Converter
    2. GuardGuard
    3. HerringMissile corvette
    4. Converter
    5. OppressorDestroyerdone 4:42 · typical 5:52
    6. Converter ×3
    7. GuardGuard
    8. RiptideFrigatedone 4:53 · typical 4:35
    9. CenturionCenturion
    10. Converter
    11. RiptideFrigate
  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 · 78 steps
    1. Converter ×2
    2. RiptideFrigate
    3. Converter
    4. GuardGuard
    5. Converter
    6. Construction ShipCon ship
    7. Converter
    8. CenturionCenturion
    9. Wind
    10. Mex
    11. GuardGuard
    12. Wind
    13. CenturionCenturion
    14. Mex
    15. Twin GuardTwin Guard
    16. Wind
    17. HerringMissile corvette
    18. Con turret
    19. OppressorDestroyer
    20. CenturionCenturion
    21. Advanced Metal ExtractorT2 mexdone 7:50 · typical 9:22
    22. Wind ×6
    23. OppressorDestroyer
    24. Wind ×3
    25. RiptideFrigate
    26. Wind
    27. BlitzBlitz
    28. RiptideFrigate
    29. BlitzBlitz
    30. Wind
    31. Advanced Metal ExtractorT2 mex
    32. Advanced Construction BotT2 con botfor Beach sea
    33. RiptideFrigate
    34. Wind
    35. RiptideFrigate ×2
    36. Advanced Metal ExtractorT2 mex
    37. Wind
    38. RiptideFrigate
    39. OppressorDestroyer
    40. Con turret
    41. Wind
    42. OppressorDestroyer
    43. Con turret
    44. Advanced Metal ExtractorT2 mex
    45. Construction BotCon bot
    46. Con turret
    47. Wind
    48. OppressorDestroyer
    49. Con turret
    50. Mex
    51. Advanced Metal ExtractorT2 mex
    52. Con turret
    53. Wind
    54. PlatypusPlatypus
    55. Con turret
    56. OppressorDestroyer
    57. PlatypusPlatypus ×2
    58. Wind
    59. PlatypusPlatypus ×2
    60. ValiantValiant
    61. RiptideFrigate
    62. PlatypusPlatypus
    63. Wind
    64. RiptideFrigate
    65. PlatypusPlatypus
    66. ValiantValiant
    67. Wind
    68. PlatypusPlatypus
    69. RiptideFrigate
    70. Con turret ×2
    71. ArbalestArbalest
    72. RiptideFrigate
    73. Wind
    74. Wind
    75. RiptideFrigate
    76. ValiantValiant
    77. Pit BullPit Bull
    78. Geothermal PowerplantGeonot finished by 15:00 · typical 8:00

Counts are medians over the build's games: half of them build more, half fewer. The example game is El_Turco's (36 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

36.1 OS · 06/08/2026

Open source match ↗

208 received units · includes a constructor
871 metal received · 35728 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