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

Counts are medians over the build's games: half of them build more, half fewer. The example game is TheSituation's (50 OS, 19/09/2026); 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

49.5 OS · 19/09/2026

Open source match ↗

74 received units · includes a constructor
190 metal received · 19324 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