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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

The role's default economy-first play: bot lab then shipyard in the cove, quick frigate/submarine/destroyer navy to contest sea and hold the coast, transitioning into whatever the sea fight needs.

Usually shipyard in the cove (98%)

#naval #eco · 897 distinct matches · 97 players · 83% of Cortex Geo sea games · team won 52% of 1005 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 3:18

  1. Open 3 mex, wind and solar, then Bot Lab.
  2. Get a BP and costal torpedo launcher up before the Shipyard.
  3. Put up Shipyard once you can defend it.
  4. Push out "submarine" and "frigate" to contest the sea.
  5. Add geothermal to fund the fleet transition into "destroyer", "missile corvette".

Phase by phase

TYPICAL OF ITS 897 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 1:06–1:26

    Some games also: wind for allies (49%)

    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 1:01 · 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 3:03–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (47%) · trasher (39%) · energy storage (34%) · wind for allies (33%)

    By 2:52 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 17 steps
    1. Wind
    2. GraverobberGraverobber
    3. Wind
    4. Construction BotCon bot
    5. Wind
    6. Construction BotCon bot
    7. Wind
    8. GraverobberGraverobber
    9. Mex
    10. GruntGrunt
    11. Energy storage
    12. GruntGrunt
    13. Construction BotCon bot
    14. GraverobberGraverobber
    15. Mex
    16. Converter
    17. ShipyardShipyarddone 3:18 · typical 3:17
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Builders
    • Construction Ship1 Con ship
    Army
    • Riptide2 Frigate
    • Orca1 Submarine
    Other
    • Radar Tower1 Radar Tower

    Some games also: Guard (50%) · wind (48%) · missile corvette (47%) · destroyer (46%) · gunboat (41%)

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

    The example game in this phase · 19 steps
    1. Mex
    2. HerringMissile corvette
    3. Radar TowerRadar Tower
    4. SupporterGunboat
    5. Converter ×2
    6. GuardGuard
    7. Construction ShipCon ship
    8. HerringMissile corvette
    9. GuardGuard
    10. SupporterGunboat
    11. Mex
    12. RiptideFrigatedone 4:10 · typical 4:35
    13. Converter
    14. GuardGuard
    15. RiptideFrigate
    16. Mex
    17. OppressorDestroyerdone 5:11 · typical 5:51
    18. Converter
    19. GuardGuard
  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
    • Herring2 Missile corvette
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (48%) · Thistle (42%) · submarine (33%)

    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 · 107 steps
    1. GuardGuard
    2. Wind
    3. HerringMissile corvette
    4. Mex
    5. OppressorDestroyer
    6. Wind
    7. Mex
    8. UrchinUrchin
    9. Wind
    10. Mex
    11. Death CavalryDeath Cavalry
    12. Wind
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Radar TowerRadar Tower
    15. RiptideFrigate
    16. Geothermal PowerplantGeodone 9:08 · typical 8:00
    17. Wind
    18. ThistleThistle
    19. RiptideFrigate
    20. Wind
    21. HerringMissile corvette
    22. GuardGuard
    23. Wind
    24. OppressorDestroyer
    25. Wind
    26. Advanced Metal ExtractorT2 mexdone 9:03 · typical 9:22
    27. GuardGuard
    28. Wind
    29. GuardGuard
    30. Wind ×2
    31. Death CavalryDeath Cavalry
    32. GuardGuard
    33. RiptideFrigate
    34. Wind
    35. Advanced Metal ExtractorT2 mex
    36. GuardGuard
    37. Construction ShipCon ship ×3
    38. Naval Construction Turret
    39. Wind
    40. Converter
    41. Construction ShipCon ship
    42. Naval Construction Turret
    43. RiptideFrigate
    44. Wind
    45. HerringMissile corvette
    46. OppressorDestroyer
    47. Converter
    48. Advanced Metal ExtractorT2 mex
    49. Wind
    50. Death CavalryDeath Cavalry
    51. RiptideFrigate
    52. Naval Construction Turret
    53. RiptideFrigate
    54. Wind
    55. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    56. Tidal ×2
    57. Vehicle PlantVehicle Plantdone 11:19
    58. Tidal
    59. OppressorDestroyer
    60. Wind
    61. Tidal ×3
    62. Wind
    63. Tidal
    64. BruteBrute
    65. Tidal
    66. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    67. Advanced Metal ExtractorT2 mex
    68. BruteBrute ×2
    69. Wind
    70. BruteBrute
    71. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    72. Tidal
    73. BruteBrute
    74. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    75. Wind
    76. BruteBrute
    77. Tidal
    78. BruteBrute ×2
    79. Wind
    80. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    81. BruteBrute ×4
    82. Radar TowerRadar Tower
    83. Advanced Metal ExtractorT2 mex
    84. BruteBrute
    85. GuardGuard
    86. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    87. BruteBrute
    88. GuardGuard
    89. BruteBrute ×2
    90. GuardGuard
    91. BruteBrute ×2
    92. GuardGuard
    93. BruteBrute
    94. UrchinUrchin
    95. BruteBrute
    96. Advanced Metal ExtractorT2 mex
    97. BruteBrute
    98. UrchinUrchin
    99. BruteBrute ×6
    100. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    101. BruteBrute
    102. UrchinUrchin
    103. BruteBrute
    104. Naval Construction Turret
    105. UrchinUrchin
    106. BruteBrute
    107. Naval Construction Turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is TheSituation's (49 OS, 14/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:47 · in 73% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 82% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 75% 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

1005 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00157100
4:002914051
5:00411013052
6:005467440232
7:006953931547
8:0086241570891
9:001051024401344
10:001264436272050
11:001523749202921
12:001815364203827
13:002150674134511
14:002505786485441
15:002879297896342
WHAT THE NUMBERS SAY

Standard Cortex geo sea sits at an even 50% win rate, trading a slower start for a big resource lead by 15:00.

  • + Metal produced hits 28451 by 15:00, well above both front roles
  • + Own metal lost stays far below enemy metal destroyed at every checkpoint
  • − Only 50% team win rate, the lowest of these six builds
  • − T2 factory only completes in 40% of games by 12:53
THE EXAMPLE YOU ARE READING

TheSituation

48.5 OS · 14/09/2026

Open source match ↗

3 received units · includes a constructor
2008 metal received · 44561 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:26 · n=999
Shipyard3:17Middle 50%: 3:03–3:33 · n=1000
Orca4:19Middle 50%: 3:53–4:59 · n=686
Riptide4:35Middle 50%: 4:08–5:20 · n=977
Oppressor5:51Middle 50%: 5:08–6:32 · n=912
Geothermal Powerplant8:00Middle 50%: 7:01–8:58 · n=605
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=861

Played most by

sirniho119games of this buildOptimusprimenutt78games of this buildSHOGVN74games of this buildPRO_Rerory46games of this buildhihimik41games of this build