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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 ×4
    3. 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 · 5 steps
    1. Construction BotCon bot
    2. GraverobberGraverobber ×2
    3. Construction BotCon bot
    4. Mex
    5. ShipyardShipyarddone 2:33 · 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 · 23 steps
    1. Construction BotCon bot
    2. Construction ShipCon ship ×2
    3. OppressorDestroyerdone 3:43 · typical 5:52
    4. Mex ×2
    5. Bot LabEat Bot Labreclaimed for its metal
    6. Wind
    7. Mex ×2
    8. Wind
    9. HerringMissile corvette
    10. UrchinUrchin
    11. Wind
    12. HerringMissile corvette
    13. GuardGuard
    14. Wind
    15. RiptideFrigatedone 4:41 · typical 4:37
    16. Wind ×2
    17. Radar TowerRadar Tower
    18. Wind
    19. GuardGuard
    20. Mex
    21. RiptideFrigate
    22. Wind
    23. 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 · 130 steps
    1. Converter
    2. ThistleThistle
    3. Converter
    4. RiptideFrigate
    5. Mex
    6. Energy storage
    7. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    8. Death CavalryDeath Cavalry
    9. UrchinUrchin
    10. RiptideFrigate
    11. Wind ×2
    12. RiptideFrigate
    13. Wind ×2
    14. Death CavalryDeath Cavalry
    15. GuardGuard
    16. Wind ×2
    17. Advanced Metal ExtractorT2 mexdone 8:23 · typical 9:22
    18. OppressorDestroyer
    19. Converter ×2
    20. Naval Construction Turret
    21. RiptideFrigate ×2
    22. Advanced Metal ExtractorT2 mex
    23. Naval Construction Turret
    24. RiptideFrigate
    25. Con turret
    26. Tidal
    27. Advanced Metal ExtractorT2 mex
    28. Tidal
    29. RiptideFrigate
    30. Tidal
    31. Naval Hovercraft PlatformNaval Hovercraft Platformdone 10:15
    32. Tidal
    33. Death CavalryDeath Cavalry
    34. Tidal
    35. MangonelHover rocket bot
    36. RiptideFrigate
    37. Tidal
    38. Con turret
    39. Advanced Metal ExtractorT2 mex
    40. MangonelHover rocket bot
    41. RiptideFrigate
    42. Tidal ×2
    43. Construction HovercraftCon hovercraft
    44. Tidal ×4
    45. Radar TowerRadar Tower
    46. Wind
    47. Tidal ×2
    48. Wind ×2
    49. Tidal ×2
    50. Wind
    51. Tidal ×2
    52. Converter
    53. Wind
    54. Tidal
    55. Wind
    56. Tidal ×2
    57. Wind
    58. Tidal
    59. Wind
    60. Advanced Metal ExtractorT2 mex
    61. Tidal ×5
    62. Radar TowerRadar Tower
    63. Tidal ×2
    64. Naval Construction Turret ×2
    65. Tidal
    66. Advanced Metal ExtractorT2 mex
    67. Mex
    68. Naval Construction Turret
    69. Con turret
    70. Advanced ShipyardAdvanced Shipyarddone 12:55
    71. Tidal
    72. Mex
    73. Con turret
    74. Wind
    75. Advanced Construction SubAdvanced Construction Sub
    76. Aircraft PlantAircraft Plantdone 13:09
    77. Wind ×2
    78. HerculesLight transport
    79. Wind
    80. PathfinderPathfinder
    81. Converter
    82. Tidal
    83. Construction AircraftCon aircraft
    84. PathfinderPathfinder
    85. Tidal
    86. PathfinderPathfinder
    87. Wind
    88. PathfinderPathfinder
    89. FinchFinch
    90. Wind ×3
    91. Construction AircraftCon aircraft
    92. Wind
    93. Tidal
    94. Wind ×3
    95. Construction AircraftCon aircraft
    96. Con turret
    97. Converter
    98. Wind
    99. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:09
    100. Tidal
    101. Wind
    102. Con turret
    103. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    104. FinchFinch
    105. Con turret
    106. Converter
    107. Wind
    108. Tidal
    109. Con turret
    110. Wind
    111. Construction AircraftCon aircraft
    112. Wind
    113. Tidal
    114. Converter
    115. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    116. Construction AircraftCon aircraft
    117. Tidal
    118. Wind ×3
    119. Tidal
    120. Wind ×6
    121. Con turret ×2
    122. Wind ×4
    123. DespotBattleshipnot finished by 15:00
    124. Con turret
    125. Wind ×2
    126. Con turret
    127. Wind
    128. Converter
    129. Con turret
    130. Wind ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is _X_'s (41 OS, 09/10/2026); 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_

41.1 OS · 09/10/2026

Open source match ↗

2 received units · includes a constructor
894 metal received · 40821 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