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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 · 4 steps
    1. Mex ×3
    2. Wind ×4
    3. GuardGuard
    4. Bot LabBot Labdone 1:21 · 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 · 3 steps
    1. GraverobberGraverobber ×2
    2. Construction BotCon bot ×2
    3. ShipyardShipyarddone 2:38 · 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 · 21 steps
    1. Energy storage
    2. HerringMissile corvette
    3. Construction ShipCon ship ×2
    4. Converter
    5. Mex
    6. OrcaSubmarinedone 3:58 · typical 4:17
    7. Converter
    8. Mex
    9. UrchinUrchin
    10. Bot LabEat Bot Labreclaimed for its metal
    11. Converter
    12. HerringMissile corvette ×2
    13. Mex
    14. HerringMissile corvette
    15. Wind
    16. HerringMissile corvette
    17. Wind
    18. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    19. Mex
    20. RiptideFrigatedone 5:21 · typical 4:37
    21. Wind ×2
  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 · 147 steps
    1. Mex
    2. Converter
    3. GuardGuard
    4. RiptideFrigate
    5. Wind
    6. GuardGuard
    7. Mex
    8. ThistleThistle
    9. Wind
    10. UrchinUrchin
    11. Wind
    12. OppressorDestroyerdone 7:20 · typical 5:52
    13. Wind
    14. Radar TowerRadar Tower
    15. Converter
    16. Wind
    17. Advanced Metal ExtractorT2 mexdone 7:12
    18. Wind ×3
    19. Naval Construction Turret
    20. Wind
    21. Advanced Metal ExtractorT2 mex
    22. Converter
    23. Death CavalryDeath Cavalry
    24. Wind ×2
    25. Naval Construction Turret
    26. Wind
    27. Advanced Metal ExtractorT2 mex
    28. HerringMissile corvette
    29. Wind
    30. Converter
    31. Naval Construction Turret
    32. Wind
    33. OppressorDestroyer
    34. Naval Construction Turret
    35. Wind
    36. Shark's TeethShark's Teeth
    37. Wind
    38. Shark's TeethShark's Teeth ×3
    39. Advanced Metal ExtractorT2 mex
    40. Shark's TeethShark's Teeth ×3
    41. Wind
    42. Tidal ×2
    43. Converter
    44. Tidal
    45. Death CavalryDeath Cavalry
    46. Tidal ×3
    47. Death CavalryDeath Cavalry
    48. Tidal ×2
    49. Wind
    50. RiptideFrigate
    51. Tidal
    52. Wind
    53. Tidal
    54. Death CavalryDeath Cavalry
    55. Tidal
    56. Wind
    57. Advanced Metal ExtractorT2 mex
    58. RiptideFrigate
    59. Converter
    60. Tidal ×2
    61. Death CavalryDeath Cavalry
    62. Tidal
    63. UrchinUrchin
    64. RiptideFrigate
    65. HerringMissile corvette ×2
    66. Tidal
    67. HerringMissile corvette
    68. Wind
    69. RiptideFrigate
    70. Advanced Metal ExtractorT2 mex
    71. Tidal
    72. Wind
    73. Mex
    74. RiptideFrigate
    75. Wind
    76. RiptideFrigate
    77. Tidal
    78. Wind
    79. RiptideFrigate
    80. Tidal
    81. Converter
    82. Tidal
    83. Death CavalryDeath Cavalry
    84. HerringMissile corvette
    85. Tidal
    86. Wind
    87. Tidal
    88. Death CavalryDeath Cavalry
    89. Wind
    90. Tidal
    91. RiptideFrigate
    92. Wind
    93. RiptideFrigate
    94. Naval Construction Turret
    95. Wind
    96. RiptideFrigate
    97. Converter
    98. Naval Construction Turret
    99. RiptideFrigate ×2
    100. Wind
    101. Naval Construction Turret
    102. RiptideFrigate
    103. Wind
    104. Death CavalryDeath Cavalry
    105. Wind
    106. Naval Construction Turret
    107. Death CavalryDeath Cavalry
    108. Tidal
    109. Wind
    110. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 14:57
    111. Tidal
    112. Death CavalryDeath Cavalry
    113. Converter
    114. Tidal
    115. HerringMissile corvette
    116. Death CavalryDeath Cavalry
    117. Tidal
    118. Wind
    119. HerringMissile corvette
    120. Tidal
    121. Wind
    122. Tidal
    123. Death CavalryDeath Cavalry
    124. Tidal ×3
    125. RiptideFrigate
    126. Wind
    127. Tidal ×2
    128. GuardGuard
    129. RiptideFrigate
    130. Tidal ×2
    131. RiptideFrigate
    132. Tidal ×2
    133. GuardGuard
    134. RiptideFrigate
    135. Advanced ShipyardAdvanced Shipyarddone 14:34
    136. Tidal
    137. HerringMissile corvette
    138. GuardGuard ×2
    139. Vehicle PlantVehicle Plantdone 14:47
    140. GuardGuard
    141. Advanced Construction SubAdvanced Construction Sub
    142. HerringMissile corvette
    143. GuardGuard
    144. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    145. HerringMissile corvette
    146. BruteBrute
    147. Naval Construction Turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is _X_'s (41 OS, 07/10/2026); 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

_X_

40.5 OS · 07/10/2026

Open source match ↗

3 received units · includes a constructor
556 metal received · 78589 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