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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 ×3
    2. Wind
    3. Wind ×2for Air
    4. Wind
    5. Bot LabBot Labdone 1:08 · 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 · 7 steps
    1. GraverobberGraverobber ×2
    2. Construction BotCon bot ×4
    3. GraverobberGraverobber
    4. TrasherTrasher
    5. Mex ×2
    6. GruntGrunt
    7. ShipyardShipyarddone 3:06 · 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 · 21 steps
    1. GruntGrunt
    2. GuardGuard
    3. GruntGrunt ×2
    4. GuardGuard
    5. SupporterGunboat
    6. GruntGrunt
    7. Radar TowerRadar Tower
    8. SupporterGunboat ×4
    9. HerringMissile corvette
    10. Construction ShipCon ship
    11. Radar TowerRadar Tower
    12. Death CavalryDeath Cavalry
    13. Mex ×3
    14. HerringMissile corvette
    15. SupporterGunboat ×3
    16. Mex
    17. SupporterGunboat
    18. Mex
    19. SupporterGunboat
    20. ThistleThistle
    21. Con turret
  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 · 127 steps
    1. OppressorDestroyerdone 6:03 · typical 5:51
    2. Wind
    3. Solar
    4. GuardGuard
    5. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    6. Wind
    7. Solar
    8. GuardGuard
    9. Energy storage
    10. Wind ×3
    11. GuardGuard
    12. Wind
    13. RiptideFrigatedone 6:19 · typical 4:35
    14. Wind
    15. GuardGuard
    16. RiptideFrigate
    17. Wind ×3
    18. Death CavalryDeath Cavalry
    19. Wind
    20. Mex
    21. Advanced Metal ExtractorT2 mexdone 7:44 · typical 9:22
    22. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    23. Wind ×2
    24. HerringMissile corvette
    25. RiptideFrigate
    26. Wind ×2
    27. Geothermal PowerplantGeodone 9:16 · typical 8:00
    28. Mex
    29. Advanced Metal ExtractorT2 mex
    30. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    31. Wind ×2
    32. OppressorDestroyer
    33. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    34. Advanced Metal ExtractorT2 mex
    35. Con turret ×2
    36. Twin GuardTwin Guard
    37. RiptideFrigate
    38. Twin GuardTwin Guard
    39. Con turret
    40. Advanced Metal ExtractorT2 mex
    41. Converter
    42. RiptideFrigate
    43. Con turret ×2
    44. Mex
    45. Converter
    46. Con turret
    47. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    48. Death CavalryDeath Cavalry
    49. Twin GuardTwin Guard
    50. Converter
    51. HerringMissile corvette
    52. RiptideFrigate
    53. OppressorDestroyer
    54. Converter
    55. Mex
    56. Converter
    57. RiptideFrigate
    58. Advanced Metal ExtractorT2 mex
    59. Converter
    60. RiptideFrigate
    61. Death CavalryDeath Cavalry
    62. Converter ×2
    63. HerringMissile corvette
    64. RiptideFrigate
    65. Converter
    66. OppressorDestroyer
    67. Converter ×3
    68. RiptideFrigate
    69. Advanced Metal ExtractorT2 mex
    70. Construction ShipCon ship
    71. Converter
    72. Wind ×11
    73. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    74. Wind ×3
    75. Advanced ShipyardAdvanced Shipyarddone 12:24
    76. Wind
    77. Con turret
    78. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    79. Wind
    80. Advanced Construction SubAdvanced Construction Sub
    81. Wind
    82. PathfinderPathfinder
    83. Wind
    84. PathfinderPathfinder
    85. Advanced Metal ExtractorT2 mex
    86. Wind
    87. PathfinderPathfinder
    88. Wind
    89. OasisOasis
    90. Con turret ×2
    91. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    92. Con turret
    93. Advanced Metal ExtractorT2 mex
    94. Wind
    95. PathfinderPathfinder
    96. Con turret
    97. PathfinderPathfinder
    98. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:46
    99. Con turret
    100. Wind ×9
    101. Con turret
    102. Wind
    103. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    104. Wind
    105. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    106. Naval Construction Turret
    107. Wind
    108. Metal storage
    109. Con turret
    110. Wind ×3
    111. Naval Construction Turret
    112. Con turret
    113. Wind
    114. Experimental GantryExperimental Gantrydone 14:51
    115. Wind ×2
    116. Con turret
    117. Wind ×2
    118. PrudePrudenot finished by 15:00
    119. Con turret
    120. Wind
    121. Con turret
    122. Wind
    123. Con turret
    124. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    125. Wind
    126. ShivaShivanot finished by 15:00
    127. Con turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is StoicMoose42's (36 OS, 23/09/2026); 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

StoicMoose42

35.8 OS · 23/09/2026

Open source match ↗

43 received units · includes a constructor
88 metal received · 155974 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