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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 1:10 · 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 · 9 steps
    1. Wind
    2. Construction BotCon bot
    3. Wind ×4
    4. Construction BotCon bot ×2
    5. GraverobberGraverobber
    6. Energy storage
    7. Mex
    8. GraverobberGraverobber
    9. ShipyardShipyarddone 2:57 · 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 · 22 steps
    1. Wind
    2. GruntGrunt
    3. Wind
    4. OppressorDestroyerdone 3:41 · typical 5:51
    5. GruntGrunt
    6. Wind
    7. Mex
    8. Converter
    9. Wind
    10. Construction ShipCon ship
    11. Mex ×2
    12. HerringMissile corvette
    13. Converter
    14. HerringMissile corvette
    15. Mex ×2
    16. Radar TowerRadar Tower
    17. Converter
    18. GuardGuard
    19. Construction ShipCon ship
    20. Mex
    21. GuardGuard
    22. OppressorDestroyer
  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 · 135 steps
    1. ThistleThistle ×2
    2. Radar TowerRadar Tower
    3. GuardGuard ×2
    4. RiptideFrigatedone 5:56 · typical 4:35
    5. Con turret
    6. Mex
    7. Con turret
    8. RiptideFrigate
    9. Construction ShipCon ship
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. GuardGuard
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. Naval Construction Turret
    14. GuardGuard ×2
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. GuardGuard
    17. Geothermal PowerplantGeodone 7:51 · typical 8:00
    18. Naval Construction Turret
    19. GuardGuard ×2
    20. Wind
    21. Aircraft PlantAircraft Plantdone 7:40
    22. Wind
    23. WhirlwindWhirlwind
    24. Wind
    25. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    26. WhirlwindWhirlwind
    27. Wind
    28. Mex
    29. Wind
    30. GuardGuard
    31. WhirlwindWhirlwind
    32. Advanced Metal ExtractorT2 mexdone 9:05 · typical 9:22
    33. Wind
    34. WhirlwindWhirlwind
    35. HerculesLight transport
    36. GuardGuard
    37. Wind
    38. WhirlwindWhirlwind
    39. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    40. ThistleThistle
    41. Wind
    42. WhirlwindWhirlwind
    43. Mex
    44. WhirlwindWhirlwind
    45. Wind
    46. ThistleThistle
    47. WhirlwindWhirlwind
    48. Con turret
    49. Wind
    50. WhirlwindWhirlwind
    51. Advanced Metal ExtractorT2 mex
    52. Radar TowerRadar Tower
    53. Wind
    54. WhirlwindWhirlwind
    55. Wind
    56. WhirlwindWhirlwind
    57. Wind
    58. WhirlwindWhirlwind
    59. Converter
    60. Mex
    61. Wind
    62. WhirlwindWhirlwind
    63. FinchFinch
    64. Advanced Metal ExtractorT2 mex
    65. Wind
    66. FinchFinch
    67. Wind
    68. Energy storage
    69. Converter
    70. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    71. UrchinUrchin
    72. Advanced ShipyardAdvanced Shipyarddone 10:56
    73. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    74. Con turret
    75. Advanced Metal ExtractorT2 mex
    76. Converter
    77. Naval Construction Turret
    78. BeholderBeholder
    79. GuardGuard
    80. Converter
    81. GuardGuard
    82. Bot LabBot Labdone 11:35
    83. Advanced Construction SubAdvanced Construction Sub
    84. GuardGuard
    85. Converter
    86. PathfinderPathfinder
    87. Construction BotCon bot
    88. PathfinderPathfinder
    89. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:11
    90. Construction BotCon bot
    91. PathfinderPathfinder
    92. CastroCastro
    93. Advanced Metal ExtractorT2 mex
    94. Naval Construction Turret
    95. Converter
    96. Wind ×3
    97. Naval Construction Turret
    98. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    99. Wind
    100. OasisOasis
    101. CastroCastro
    102. Advanced Metal ExtractorT2 mex
    103. Con turret
    104. ThistleThistle
    105. Advanced Bot LabAdvanced Bot Labdone 13:43
    106. OasisOasis
    107. ThistleThistle
    108. GuardGuard
    109. Advanced Metal ExtractorT2 mex
    110. Energy storage
    111. Advanced Metal ExtractorT2 mex
    112. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    113. OasisOasis
    114. Energy storage
    115. BeholderBeholder
    116. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 14:55
    117. BeholderBeholder
    118. DeceiverJammer bot
    119. BeholderBeholder
    120. OasisOasis
    121. AugurRadar bot
    122. SheldonSheldondone 14:12
    123. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    124. BeholderBeholder
    125. SheldonSheldon ×2
    126. JunoJuno
    127. SheldonSheldon ×2
    128. GuardGuard
    129. SheldonSheldon
    130. Advanced Construction BotT2 con bot
    131. GuardGuard
    132. Fusion ReactorFusionnot finished by 15:00
    133. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    134. SheldonSheldon ×2
    135. GuardGuard

Counts are medians over the build's games: half of them build more, half fewer. The example game is PRO_Rerory's (50 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

49.9 OS · 22/09/2026

Open source match ↗

4 received units · includes a constructor
424 metal received · 196404 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