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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 · 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 3:03–3:33
    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. Construction BotCon bot
    3. Wind
    4. Construction BotCon bot
    5. Wind ×2
    6. Construction BotCon bot
    7. Wind
    8. GraverobberGraverobber
    9. Energy storage
    10. Mex
    11. GraverobberGraverobber
    12. Wind
    13. GruntGrunt
    14. Wind
    15. GruntGrunt
    16. Wind
    17. ShipyardShipyarddone 3:12 · 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. Wind ×2
    3. Construction ShipCon ship
    4. Wind
    5. SupporterGunboat ×2
    6. Converter
    7. Mex ×2
    8. SupporterGunboat
    9. Construction ShipCon ship
    10. OrcaSubmarinedone 4:03 · typical 4:19
    11. Converter
    12. Radar TowerRadar Tower
    13. Mex
    14. Converter
    15. OrcaSubmarine
    16. GuardGuard
    17. Converter
    18. OrcaSubmarine
    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 · 112 steps
    1. Mex
    2. HerringMissile corvette
    3. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    4. ThistleThistle
    5. HerringMissile corvette
    6. Con turret
    7. GuardGuard
    8. Death CavalryDeath Cavalry
    9. Geothermal PowerplantGeodone 7:13 · typical 8:00
    10. RiptideFrigatedone 6:33 · typical 4:35
    11. GuardGuard
    12. RiptideFrigate
    13. ThistleThistle
    14. RiptideFrigate ×2
    15. GuardGuard
    16. HerringMissile corvette
    17. GuardGuard
    18. OppressorDestroyerdone 8:07 · typical 5:51
    19. GuardGuard
    20. Converter
    21. Advanced Metal ExtractorT2 mexdone 9:03 · typical 9:22
    22. ThistleThistle
    23. Converter
    24. Mex ×2
    25. OppressorDestroyer
    26. ThistleThistle
    27. Converter
    28. RiptideFrigate
    29. Radar TowerRadar Tower
    30. Converter
    31. GuardGuard
    32. Radar TowerRadar Tower
    33. Converter
    34. RiptideFrigate
    35. ThistleThistle
    36. Converter
    37. Construction ShipCon ship
    38. Advanced Metal ExtractorT2 mex
    39. OppressorDestroyer
    40. Wind
    41. RiptideFrigate
    42. Con turret
    43. RiptideFrigate
    44. Wind
    45. Advanced Metal ExtractorT2 mex
    46. HerringMissile corvette ×2
    47. RiptideFrigate
    48. OppressorDestroyer
    49. Wind
    50. OppressorDestroyer
    51. Wind
    52. Naval Metal Storage ×3
    53. Wind
    54. Advanced Metal ExtractorT2 mex
    55. Naval Metal Storage
    56. Wind ×4
    57. Construction ShipCon ship
    58. Wind ×2
    59. Naval Construction Turret
    60. Wind
    61. Naval Construction Turret
    62. Wind
    63. Construction ShipCon ship
    64. Naval Construction Turret
    65. Death CavalryDeath Cavalry
    66. Wind
    67. Mex
    68. Wind
    69. Naval Construction Turret
    70. Advanced Metal ExtractorT2 mex
    71. Wind
    72. Naval Construction Turret
    73. Advanced ShipyardAdvanced Shipyarddone 13:05
    74. Wind
    75. Mex
    76. Wind
    77. Death CavalryDeath Cavalry
    78. Wind
    79. SlingshotSlingshot
    80. Wind
    81. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    82. Wind
    83. HerringMissile corvette
    84. UrchinUrchin
    85. Wind
    86. HerringMissile corvette ×2
    87. Wind
    88. Advanced Metal ExtractorT2 mex
    89. HerringMissile corvette
    90. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    91. Wind
    92. HerringMissile corvette
    93. Advanced Construction SubAdvanced Construction Sub
    94. HerringMissile corvette
    95. Mex
    96. UrchinUrchin
    97. HerringMissile corvette
    98. BrimstoneAnti-swarm shipdone 13:56
    99. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:24
    100. HerringMissile corvette
    101. BrimstoneAnti-swarm ship
    102. HerringMissile corvette
    103. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    104. Wind
    105. BrimstoneAnti-swarm ship
    106. Wind
    107. HerringMissile corvette
    108. Wind
    109. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    110. Wind
    111. BrimstoneAnti-swarm ship
    112. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is PRO_Rerory's (49 OS, 22/09/2026); 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

PRO_Rerory

49.4 OS · 22/09/2026

Open source match ↗

4 received units · includes a constructor
351 metal received · 50726 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