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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 ×2
    5. Bot LabBot Labdone 1:03 · 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 · 14 steps
    1. Wind
    2. GraverobberGraverobber
    3. Wind
    4. GraverobberGraverobber
    5. Windfor Air
    6. Construction BotCon bot
    7. Windfor Air
    8. GraverobberGraverobber
    9. Con turret
    10. Construction BotCon bot
    11. TrasherTrasher ×2
    12. Mex
    13. Construction BotCon bot ×2
    14. ShipyardShipyarddone 3:09 · 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 · 23 steps
    1. Converter
    2. GruntGrunt
    3. Converter
    4. GruntGrunt
    5. Mex
    6. Radar TowerRadar Tower
    7. Construction ShipCon ship
    8. Converter
    9. OrcaSubmarinedone 3:54 · typical 4:19
    10. Mex ×2
    11. Energy storage
    12. RiptideFrigatedone 4:41 · typical 4:35
    13. Mex
    14. Converter
    15. Wind
    16. Radar TowerRadar Tower
    17. Mex
    18. Wind
    19. Radar TowerRadar Tower
    20. Wind ×2
    21. ThistleThistle
    22. RiptideFrigate
    23. Wind
  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 · 126 steps
    1. OppressorDestroyerdone 5:59 · typical 5:51
    2. GuardGuard
    3. Wind ×4
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. GuardGuard
    6. Wind ×2
    7. Death CavalryDeath Cavalry
    8. GuardGuard
    9. Converter
    10. HerringMissile corvette
    11. RiptideFrigate
    12. GuardGuard
    13. RiptideFrigate
    14. Converter
    15. OppressorDestroyer
    16. Mex
    17. GuardGuard
    18. Converter
    19. HerringMissile corvette
    20. Twin GuardTwin Guard
    21. GuardGuard
    22. Death CavalryDeath Cavalry
    23. Wind
    24. Death CavalryDeath Cavalry
    25. Wind
    26. GuardGuard
    27. RiptideFrigate
    28. Con turret
    29. ThistleThistle
    30. Wind
    31. Advanced Metal ExtractorT2 mexdone 9:52 · typical 9:22
    32. OppressorDestroyer
    33. GuardGuard
    34. Wind ×2
    35. GuardGuard
    36. RiptideFrigate
    37. Wind
    38. HerringMissile corvette
    39. Advanced Metal ExtractorT2 mex
    40. HerringMissile corvette
    41. Con turret
    42. Wind
    43. HerringMissile corvette
    44. ThistleThistle
    45. Wind
    46. Death CavalryDeath Cavalry
    47. Wind ×2
    48. Construction ShipCon ship
    49. Mex
    50. Wind
    51. ThistleThistle
    52. Construction ShipCon ship
    53. Wind ×9
    54. Advanced Metal ExtractorT2 mex
    55. Wind ×10
    56. Naval Construction Turret ×2
    57. Advanced ShipyardAdvanced Shipyarddone 12:21
    58. Naval Construction Turret
    59. Wind ×2
    60. Con turret
    61. Tidal
    62. Wind
    63. Tidal
    64. Wind
    65. Tidal ×2
    66. Wind
    67. Advanced Metal ExtractorT2 mex
    68. Wind
    69. Mex
    70. Tidal
    71. Wind
    72. Tidal
    73. Wind
    74. Tidal
    75. Wind
    76. Tidal
    77. Wind ×2
    78. Tidal
    79. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    80. Wind
    81. Tidal
    82. Advanced Construction SubAdvanced Construction Sub
    83. Wind ×2
    84. Mex
    85. Naval Construction Turret
    86. Tidal
    87. Wind ×2
    88. Tidal
    89. Advanced Construction SubAdvanced Construction Sub
    90. Wind
    91. Tidal
    92. Wind
    93. Advanced Metal ExtractorT2 mex
    94. Wind
    95. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:45
    96. Tidal
    97. Wind ×2
    98. Mex
    99. Wind ×2
    100. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    101. Con turret ×2
    102. Advanced Metal ExtractorT2 mex
    103. JunoJuno
    104. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    105. PhantasmRadar jammer ship
    106. Wind
    107. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    108. Wind ×2
    109. PhantasmRadar jammer ship
    110. Wind ×3
    111. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    112. Wind ×4
    113. Arrow StormAnti-air shipdone 14:50
    114. Wind ×3
    115. Naval Construction Turret
    116. Wind
    117. Advanced Sonar StationAdvanced Sonar Station
    118. Armada CommanderArmada Commander
    119. Wind ×4
    120. OasisOasis
    121. Advanced Metal ExtractorT2 mexnot finished by 15:00
    122. Wind
    123. Naval Construction Turret
    124. Wind
    125. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    126. Wind ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is sirniho's (37 OS, 24/09/2026); 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

sirniho

36.9 OS · 24/09/2026

Open source match ↗

4 received units · includes a constructor
29 metal received · 52918 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