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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 ×2
    4. 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 · 8 steps
    1. Wind
    2. GraverobberGraverobberfor Beach sea
    3. Wind ×2
    4. Construction BotCon bot ×2
    5. GraverobberGraverobber
    6. GruntGrunt
    7. Energy storage
    8. ShipyardShipyarddone 2:46 · 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 · 20 steps
    1. GruntGrunt
    2. Construction BotCon bot
    3. HerringMissile corvette
    4. Mex
    5. SupporterGunboat
    6. Wind
    7. Construction ShipCon ship
    8. GraverobberGraverobber
    9. HerringMissile corvette
    10. Mex ×2
    11. Converter
    12. SupporterGunboat
    13. Wind
    14. Mex ×2
    15. Radar TowerRadar Tower
    16. Wind
    17. GuardGuard
    18. HerringMissile corvette
    19. RiptideFrigatedone 5:07 · typical 4:35
    20. 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 · 101 steps
    1. GuardGuard
    2. RiptideFrigate
    3. Mex
    4. Converter
    5. GuardGuard
    6. OppressorDestroyerdone 6:06 · typical 5:51
    7. UrchinUrchin
    8. ThistleThistle
    9. Converter
    10. Death CavalryDeath Cavalry
    11. Converter
    12. HerringMissile corvette
    13. RiptideFrigate ×2
    14. Converter
    15. OppressorDestroyer
    16. Mex
    17. Wind
    18. Advanced Metal ExtractorT2 mexdone 9:40 · typical 9:22
    19. Death CavalryDeath Cavalry
    20. Wind
    21. Mex
    22. HerringMissile corvette
    23. Wind
    24. RiptideFrigate
    25. Wind
    26. Geothermal PowerplantGeodone 11:39 · typical 8:00
    27. ThistleThistle
    28. RiptideFrigate
    29. Wind
    30. OppressorDestroyer
    31. Radar TowerRadar Tower
    32. Advanced Metal ExtractorT2 mex
    33. Wind ×2
    34. Death CavalryDeath Cavalry
    35. Wind
    36. GuardGuard
    37. RiptideFrigate
    38. SupporterGunboat
    39. Wind
    40. SupporterGunboat
    41. GuardGuard
    42. HerringMissile corvette
    43. Wind
    44. RiptideFrigate
    45. Advanced Metal ExtractorT2 mex
    46. RiptideFrigate
    47. GuardGuard
    48. OppressorDestroyer
    49. GuardGuard
    50. Construction ShipCon ship ×2
    51. Converter
    52. Naval Construction Turret
    53. Construction ShipCon ship
    54. Naval Construction Turret
    55. Construction ShipCon ship
    56. Death CavalryDeath Cavalry
    57. Converter
    58. Tidal
    59. RiptideFrigate
    60. Advanced Metal ExtractorT2 mex
    61. Tidal
    62. Naval Construction Turret
    63. HerringMissile corvette
    64. RiptideFrigate
    65. Naval Construction Turret
    66. Tidal
    67. RiptideFrigate
    68. Converter
    69. OppressorDestroyer
    70. Tidal
    71. Death CavalryDeath Cavalry
    72. Tidal
    73. RiptideFrigate
    74. Tidal ×2
    75. HerringMissile corvette
    76. Tidal
    77. Converter
    78. HerringMissile corvette
    79. Tidal
    80. HerringMissile corvette
    81. Tidal
    82. RiptideFrigate
    83. Tidal
    84. RiptideFrigate
    85. OppressorDestroyer
    86. Tidal
    87. Death CavalryDeath Cavalry
    88. Tidal
    89. Mex
    90. RiptideFrigate
    91. Tidal
    92. Advanced Metal ExtractorT2 mex
    93. HerringMissile corvette
    94. Tidal
    95. HerringMissile corvette
    96. Naval Construction Turret
    97. HerringMissile corvette
    98. UrchinUrchin
    99. Tidal
    100. RiptideFrigate
    101. Twin GuardTwin Guard

Counts are medians over the build's games: half of them build more, half fewer. The example game is TheSituation's (49 OS, 20/09/2026); 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

49.3 OS · 20/09/2026

Open source match ↗

4 received units · includes a constructor
331 metal received · 20556 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