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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

The usual Cove-side sea opening: bot lab for an early defensive bot, shipyard in the cove, then frigates, destroyers and submarines to contest the sea and defend the base.

Usually shipyard in the cove (98%)

#naval #defence · 1098 distinct matches · 104 players · 83% of Cortex Geo sea games · team won 52% of 1227 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 3:16

  1. Grab 3 mex and open wind while laying down bot lab.
  2. Get bot lab up then push straight into shipyard.
  3. Finish shipyard, start pumping subs and frigates to contest sea.
  4. Add submarine, frigate and destroyer to hold sea lanes.
  5. Bring geo online and transition into mixed navy.

Phase by phase

TYPICAL OF ITS 1098 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 1:07–1:26

    Some games also: wind for allies (48%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×3
    3. Bot LabBot Labdone 1:02 · 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 (45%) · trasher (40%) · energy storage (33%) · wind for allies (31%)

    By 2:51 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 15 steps
    1. Wind
    2. GraverobberGraverobber
    3. Windfor Air
    4. Construction BotCon bot ×2
    5. Windfor Air
    6. GraverobberGraverobber
    7. GruntGrunt
    8. Mex
    9. Energy storage
    10. GruntGrunt
    11. Construction BotCon bot
    12. Mex
    13. GraverobberGraverobber
    14. Converter
    15. ShipyardShipyarddone 3:16 · typical 3:17
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Order
    1. Bot LabEat Bot Lab
    Builders
    • Construction Ship1 Con ship
    Army
    • Riptide2 Frigate
    • Orca1 Submarine
    Other
    • Radar Tower1 Radar Tower

    Some games also: missile corvette (49%) · Guard (49%) · wind (48%) · destroyer (45%) · gunboat (39%)

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

    The example game in this phase · 20 steps
    1. Mex
    2. Radar TowerRadar Tower
    3. HerringMissile corvette
    4. GuardGuard
    5. SupporterGunboat
    6. Converter
    7. Bot LabEat Bot Labreclaimed for its metal
    8. Construction ShipCon ship
    9. HerringMissile corvette
    10. SupporterGunboat
    11. GuardGuard
    12. RiptideFrigatedone 4:03 · typical 4:37
    13. Mex
    14. Converter
    15. HerringMissile corvette
    16. ThistleThistle
    17. RiptideFrigate
    18. Mex
    19. OppressorDestroyerdone 5:14 · typical 5:52
    20. Converter
  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 · 129 steps
    1. Wind
    2. HerringMissile corvette
    3. Geothermal PowerplantGeodone 6:39 · typical 8:00
    4. Wind
    5. UrchinUrchin
    6. RiptideFrigate
    7. Wind ×2
    8. Mex
    9. RiptideFrigate
    10. Wind
    11. GuardGuard
    12. Wind
    13. OppressorDestroyer
    14. Wind
    15. Death CavalryDeath Cavalry
    16. Wind
    17. RiptideFrigate ×2
    18. Wind
    19. HerringMissile corvette
    20. Construction ShipCon ship
    21. Wind
    22. Con turret
    23. Construction ShipCon ship
    24. Naval Construction Turret
    25. OppressorDestroyer
    26. Mex
    27. Wind
    28. Advanced Metal ExtractorT2 mexdone 9:13 · typical 9:22
    29. Naval Construction Turret
    30. Death CavalryDeath Cavalry
    31. Wind
    32. Mex
    33. HerringMissile corvette ×2
    34. Naval Construction Turret
    35. Tidal
    36. SupporterGunboat
    37. Advanced Metal ExtractorT2 mex
    38. SupporterGunboat ×2
    39. Tidal
    40. SupporterGunboat
    41. Mex
    42. SupporterGunboat
    43. Death CavalryDeath Cavalry
    44. Tidal
    45. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    46. Advanced Metal ExtractorT2 mex
    47. Construction ShipCon ship
    48. Tidal
    49. Advanced ShipyardAdvanced Shipyarddone 11:02
    50. Naval Construction Turret ×2
    51. Tidal
    52. ShipyardEat Shipyardreclaimed for its metal
    53. Tidal
    54. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    55. Tidal
    56. Advanced Construction SubAdvanced Construction Sub
    57. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    58. Con turret
    59. Naval Construction Turret
    60. Advanced Metal ExtractorT2 mex
    61. Tidal
    62. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    63. Tidal
    64. PathfinderPathfinder
    65. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    66. PathfinderPathfinder
    67. Amphibious ComplexAmphibious Complexdone 12:31
    68. Tidal
    69. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:32
    70. Twin GuardTwin Guard
    71. Tidal
    72. Con turret
    73. Twin GuardTwin Guard
    74. Tidal
    75. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    76. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    77. Tidal
    78. Bot LabBot Labdone 13:07
    79. Tidal
    80. GruntGrunt
    81. Tidal
    82. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    83. Advanced Metal ExtractorT2 mex
    84. GruntGrunt
    85. Con turret
    86. GruntGrunt
    87. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    88. GruntGrunt
    89. Con turret
    90. Tidal
    91. GruntGrunt
    92. SalamanderSalamander
    93. Con turret ×2
    94. Mex
    95. Tidal
    96. SalamanderSalamander
    97. Vehicle PlantVehicle Plantdone 14:05
    98. Naval Construction Turret
    99. Vehicle PlantVehicle Plantdone 14:13
    100. SalamanderSalamander
    101. BruteBrute
    102. Tidal
    103. Naval Construction Turret
    104. GruntGrunt
    105. Twin GuardTwin Guard
    106. GruntGrunt
    107. BruteBrute
    108. GruntGrunt
    109. Naval Construction Turret
    110. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    111. BruteBrute
    112. GruntGrunt
    113. SalamanderSalamander
    114. GruntGrunt
    115. Naval Construction Turret
    116. BruteBrute ×2
    117. Tidal
    118. GruntGrunt
    119. BruteBrute ×2
    120. GruntGrunt
    121. BruteBrute
    122. SalamanderSalamander
    123. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    124. BruteBrute
    125. GruntGrunt
    126. BruteBrute
    127. Tidal
    128. Twin GuardTwin Guard
    129. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is TheSituation's (52 OS, 08/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 70% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 83% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 74% 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

1227 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156600
4:002894051
5:00410315052
6:005454461231
7:006936931545
8:0086071578891
9:001047124951344
10:001263036252031
11:001519548242838
12:001810762243720
13:002139973574441
14:002501686445353
15:002886197626354
WHAT THE NUMBERS SAY

Matches the role's own norm almost exactly, sitting at the typical 52% team win rate for Geo sea.

  • + Reliable timing: bot lab by 1:12 and shipyard by 3:16 in the middle half of games.
  • − Own metal lost climbs to 6854 by 15:00, showing sea fights stay costly.
THE EXAMPLE YOU ARE READING

TheSituation

52.4 OS · 08/10/2026

Open source match ↗

3 received units · includes a constructor
3704 metal received · 126120 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:07–1:26 · n=1207
Shipyard3:17Middle 50%: 3:02–3:33 · n=1219
Orca4:17Middle 50%: 3:51–4:59 · n=845
Riptide4:37Middle 50%: 4:08–5:21 · n=1192
Oppressor5:52Middle 50%: 5:08–6:36 · n=1114
Geothermal Powerplant8:00Middle 50%: 7:01–9:03 · n=729
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=1060

Played most by

sirniho125games of this buildSHOGVN100games of this buildOptimusprimenutt86games of this buildPRO_Rerory52games of this buildTheSituation43games of this build