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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 · 5 steps
    1. Mex ×2
    2. Wind
    3. Mex
    4. Wind ×3
    5. Bot LabBot Labdone 1:11 · 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 · 12 steps
    1. Wind
    2. Construction BotCon bot
    3. Wind ×2
    4. Construction BotCon bot
    5. Wind
    6. Construction BotCon bot
    7. Energy storage
    8. GraverobberGraverobber ×2
    9. Mex
    10. GruntGrunt
    11. Wind
    12. ShipyardShipyarddone 3:02 · 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 · 22 steps
    1. GruntGrunt
    2. Wind
    3. SupporterGunboat
    4. Bot LabEat Bot Labreclaimed for its metal
    5. SupporterGunboat
    6. Wind
    7. SupporterGunboat ×2
    8. Construction ShipCon ship
    9. Wind
    10. Mex
    11. Construction ShipCon ship
    12. Wind
    13. OppressorDestroyerdone 4:56 · typical 5:52
    14. Wind
    15. Mex
    16. Wind
    17. Mex
    18. Wind
    19. Mex
    20. Wind
    21. Radar TowerRadar Tower
    22. HerringMissile corvette
  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 · 145 steps
    1. GuardGuard
    2. RiptideFrigatedone 5:34 · typical 4:37
    3. ShipyardShipyardnot finished by 15:00
    4. Con turret
    5. RiptideFrigate
    6. GuardGuard
    7. Mex
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. Geothermal PowerplantGeodone 6:48 · typical 8:00
    10. Death CavalryDeath Cavalry
    11. GuardGuard
    12. Construction ShipCon ship
    13. Converter
    14. OppressorDestroyer
    15. Converter
    16. ThistleThistle
    17. Converter ×3
    18. HerringMissile corvette
    19. Converter
    20. RiptideFrigate
    21. GuardGuard
    22. RiptideFrigate
    23. GuardGuard
    24. Mex
    25. Death CavalryDeath Cavalry
    26. Wind ×2
    27. Construction ShipCon ship
    28. Wind ×2
    29. OppressorDestroyer
    30. Wind ×2
    31. Mex
    32. Wind
    33. HerringMissile corvette
    34. Wind
    35. RiptideFrigate
    36. Mex
    37. Wind
    38. RiptideFrigate
    39. ShipyardShipyardnot finished by 15:00
    40. Wind
    41. ShipyardEat Shipyardreclaimed for its metal
    42. Con turret
    43. Wind
    44. Death CavalryDeath Cavalry
    45. Wind
    46. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    47. Wind
    48. Construction ShipCon ship
    49. Wind
    50. OppressorDestroyer
    51. SupporterGunboat
    52. Wind ×2
    53. HerringMissile corvette
    54. RiptideFrigate
    55. OppressorDestroyer
    56. Con turret
    57. RiptideFrigate
    58. Death CavalryDeath Cavalry
    59. Mex
    60. RiptideFrigate
    61. Construction ShipCon ship
    62. Advanced Metal ExtractorT2 mexdone 11:19 · typical 9:22
    63. Naval Construction Turret
    64. Wind
    65. Tidal
    66. Wind
    67. Naval Construction Turret
    68. Tidal
    69. Wind
    70. Tidal
    71. RiptideFrigate
    72. Wind
    73. Tidal ×2
    74. Wind
    75. Tidal
    76. Construction ShipCon ship
    77. Tidal
    78. Wind
    79. Advanced Metal ExtractorT2 mex
    80. Tidal
    81. Construction ShipCon ship
    82. Tidal
    83. GuardGuard
    84. Advanced ShipyardAdvanced Shipyarddone 12:23
    85. Aircraft PlantAircraft Plantdone 12:18
    86. Tidal ×2
    87. Construction ShipCon ship
    88. Tidal ×2
    89. Advanced Metal ExtractorT2 mex
    90. Tidal
    91. Construction ShipCon ship
    92. Tidal ×2
    93. Wind
    94. Tidal
    95. HerculesLight transport
    96. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    97. Wind
    98. Advanced Construction SubAdvanced Construction Sub
    99. Tidal ×2
    100. Wind
    101. Tidal ×2
    102. ShipyardEat Shipyardreclaimed for its metal
    103. Wind
    104. Tidal
    105. Advanced Metal ExtractorT2 mex
    106. Tidal
    107. Wind
    108. Advanced Construction SubAdvanced Construction Sub
    109. Tidal ×2
    110. Wind
    111. Tidal ×2
    112. Wind
    113. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:38
    114. Tidal
    115. Wind ×2
    116. Tidal ×2
    117. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    118. HerculesLight transport
    119. Tidal
    120. Wind
    121. PhantasmRadar jammer ship
    122. Tidal
    123. Wind
    124. Mex
    125. Wind
    126. OasisOasis
    127. Wind
    128. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    129. Advanced Metal ExtractorT2 mex
    130. Wind ×2
    131. Advanced Metal ExtractorT2 mex
    132. Vehicle PlantVehicle Plantdone 14:22
    133. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    134. MessengerCruise missile shipnot finished by 15:00
    135. PhantasmRadar jammer ship
    136. TrapperTrapper
    137. Black HydraBlack Hydranot finished by 15:00
    138. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    139. GuardGuard
    140. TrapperTrapper
    141. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    142. TrapperTrapper
    143. ThistleThistle
    144. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    145. CastroCastro

Counts are medians over the build's games: half of them build more, half fewer. The example game is PRO_Rerory's (51 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

PRO_Rerory

50.9 OS · 08/10/2026

Open source match ↗

13 received units · includes a constructor
861 metal received · 31114 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