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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 · 6 steps
    1. Mex ×2
    2. Wind
    3. Mex
    4. Wind ×3
    5. Energy storage
    6. Bot LabBot Labdone 1:26 · 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 · 13 steps
    1. Wind
    2. Construction BotCon bot
    3. Windfor Air
    4. Construction BotCon bot
    5. Wind
    6. Construction BotCon bot
    7. Wind
    8. GraverobberGraverobber
    9. Mex
    10. Wind
    11. GraverobberGraverobber
    12. Wind ×2
    13. ShipyardShipyarddone 3:09 · 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. GruntGrunt
    2. Wind
    3. GruntGrunt
    4. Wind
    5. SupporterGunboat
    6. Mex
    7. SupporterGunboat
    8. Bot LabEat Bot Labreclaimed for its metal
    9. SupporterGunboat
    10. Construction ShipCon ship ×2
    11. Mex
    12. OppressorDestroyerdone 4:30 · typical 5:52
    13. Mex ×2
    14. Converter
    15. Radar TowerRadar Tower
    16. GuardGuard
    17. HerringMissile corvette
    18. Con turret
    19. OppressorDestroyer
    20. 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 · 100 steps
    1. ThistleThistle
    2. Geothermal PowerplantGeodone 6:17 · typical 8:00
    3. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    4. UrchinUrchin
    5. GuardGuard
    6. RiptideFrigatedone 6:42 · typical 4:37
    7. GuardGuard
    8. Converter
    9. GuardGuard
    10. Converter
    11. RiptideFrigate
    12. Converter
    13. Death CavalryDeath Cavalry
    14. ThistleThistle
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Converter
    17. ThistleThistle
    18. Advanced Metal ExtractorT2 mexdone 8:17 · typical 9:22
    19. Construction ShipCon ship
    20. Converter
    21. Radar TowerRadar Tower
    22. Converter
    23. HerringMissile corvette
    24. OppressorDestroyer
    25. RiptideFrigate
    26. Advanced Metal ExtractorT2 mex
    27. RiptideFrigate
    28. ShipyardShipyard ×2not finished by 15:00
    29. RiptideFrigate
    30. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    31. HerringMissile corvette
    32. Advanced Metal ExtractorT2 mex
    33. Mex
    34. RiptideFrigate
    35. HerringMissile corvette
    36. RiptideFrigate
    37. HerringMissile corvette
    38. RiptideFrigate
    39. Advanced Metal ExtractorT2 mex
    40. Construction ShipCon ship ×2
    41. HerringMissile corvette
    42. RiptideFrigate
    43. Naval Construction Turret
    44. Naval Metal Storage
    45. HerringMissile corvette
    46. UrchinUrchin
    47. RiptideFrigate
    48. Naval Construction Turret
    49. Advanced Metal ExtractorT2 mex
    50. OppressorDestroyer
    51. UrchinUrchin
    52. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    53. OppressorDestroyer
    54. UrchinUrchin ×2
    55. Advanced Metal ExtractorT2 mex
    56. UrchinUrchin ×3
    57. Tidal ×7
    58. Mex
    59. Tidal ×3
    60. Naval Construction Turret
    61. Tidal
    62. Mex
    63. Tidal ×2
    64. Naval Construction Turret
    65. Mex
    66. UrchinUrchin ×2
    67. Tidal ×6
    68. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 13:51
    69. Tidal ×4
    70. Con turret
    71. Tidal
    72. Con turret
    73. Tidal
    74. Con turret
    75. Advanced ShipyardAdvanced Shipyarddone 13:09
    76. Tidal ×2
    77. UrchinUrchin
    78. Tidal ×2
    79. Advanced Construction SubAdvanced Construction Sub
    80. Advanced Metal ExtractorT2 mex
    81. PathfinderPathfinder ×3
    82. Con turret
    83. Wind ×5
    84. GuardGuard
    85. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:29
    86. PhantasmRadar jammer ship
    87. Wind
    88. Advanced Metal ExtractorT2 mex
    89. Wind
    90. GuardGuard
    91. Wind
    92. MessengerCruise missile shipdone 14:43
    93. Con turret
    94. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    95. Converter ×2
    96. MessengerCruise missile ship
    97. Converter ×2
    98. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    99. Converter
    100. GuardGuard

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 ↗

6 received units · includes a constructor
36 metal received · 35372 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