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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. Wind ×2for Air
    3. Wind ×3
    4. Bot LabBot Labdone 1:16 · 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 ×2
    3. Construction BotCon bot
    4. TrasherTrasher
    5. Construction BotCon bot ×3
    6. Mex
    7. Construction BotCon bot
    8. GruntGrunt
    9. ShipyardShipyarddone 3:09 · 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 · 16 steps
    1. Construction BotCon bot
    2. OrcaSubmarinedone 3:31 · typical 4:19
    3. Mex
    4. Construction ShipCon ship
    5. Mex
    6. ThistleThistle
    7. RiptideFrigatedone 4:01 · typical 4:35
    8. Mex
    9. OppressorDestroyerdone 5:14 · typical 5:52
    10. Converter
    11. Mex
    12. Converter
    13. Mex
    14. Radar TowerRadar Tower
    15. Geothermal PowerplantGeodone 5:50 · typical 7:59
    16. Mex
  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 · 127 steps
    1. GuardGuard
    2. HerringMissile corvette
    3. GuardGuard
    4. RiptideFrigate
    5. ThistleThistle
    6. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    7. OppressorDestroyer
    8. Mex
    9. GuardGuard ×2
    10. Con turret
    11. Converter ×2
    12. UrchinUrchin
    13. Converter
    14. GuardGuard
    15. HerringMissile corvette
    16. Converter
    17. Death CavalryDeath Cavalry
    18. Con turret
    19. OppressorDestroyer
    20. GuardGuard
    21. Wind
    22. Advanced Metal ExtractorT2 mexdone 8:28 · typical 9:22
    23. RiptideFrigate
    24. Wind ×2
    25. OppressorDestroyer
    26. Wind
    27. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    28. Advanced Metal ExtractorT2 mex
    29. Wind ×2
    30. HerringMissile corvette
    31. Wind
    32. Death CavalryDeath Cavalry
    33. Wind
    34. Advanced Metal ExtractorT2 mex
    35. OppressorDestroyer
    36. Con turret
    37. RiptideFrigate
    38. OppressorDestroyer
    39. Con turret
    40. Advanced Metal ExtractorT2 mex
    41. Con turret
    42. Construction ShipCon ship
    43. Wind
    44. Construction ShipCon ship
    45. Wind ×3
    46. HerringMissile corvette
    47. Wind ×2
    48. Naval Construction Turret ×2
    49. Wind
    50. Tidal
    51. Death CavalryDeath Cavalry
    52. Tidal
    53. Wind ×2
    54. Tidal
    55. Wind
    56. OppressorDestroyer
    57. Tidal ×2
    58. Wind ×2
    59. Tidal ×2
    60. Wind
    61. Tidal
    62. Advanced Metal ExtractorT2 mex
    63. Wind
    64. Tidal
    65. RiptideFrigate
    66. Wind ×2
    67. Tidal ×2
    68. Wind
    69. RiptideFrigate
    70. Tidal
    71. Wind
    72. OppressorDestroyer
    73. Tidal
    74. Wind ×3
    75. Tidal
    76. Wind
    77. Advanced Metal ExtractorT2 mex
    78. Wind ×2
    79. HerringMissile corvette
    80. RiptideFrigate
    81. Tidal
    82. Wind ×2
    83. Death CavalryDeath Cavalry
    84. Tidal
    85. Energy storage
    86. Wind ×18
    87. RiptideFrigate
    88. Wind ×2
    89. Naval Construction Turret
    90. OppressorDestroyer
    91. Wind ×2
    92. OppressorDestroyer
    93. Mex
    94. Wind ×2
    95. HerringMissile corvette
    96. Wind ×2
    97. Death CavalryDeath Cavalry
    98. Wind ×2
    99. RiptideFrigate
    100. Wind
    101. OppressorDestroyer
    102. Wind
    103. Mex
    104. Wind
    105. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    106. HerringMissile corvette
    107. Wind
    108. Death CavalryDeath Cavalry
    109. Wind ×3
    110. RiptideFrigate
    111. Wind ×3
    112. OppressorDestroyer
    113. Wind ×3
    114. HerringMissile corvette
    115. Wind
    116. Death CavalryDeath Cavalry
    117. Wind
    118. Con turret
    119. Naval Construction Turret
    120. Con turret
    121. Wind
    122. Con turret
    123. Bot LabBot Lab ×2done 14:43
    124. Con turret ×2
    125. GruntGrunt ×2
    126. Mex
    127. GruntGrunt ×7

Counts are medians over the build's games: half of them build more, half fewer. The example game is tedsterr's (43 OS, 09/08/2026); 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

tedsterr

43.3 OS · 09/08/2026

Open source match ↗

3 received units · includes a constructor
534 metal received · 56321 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