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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

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 · 976 distinct matches · 100 players · 83% of Cortex Geo sea games · team won 52% of 1095 · 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 976 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 · 3 steps
    1. Mex ×3
    2. Wind ×3
    3. 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 3:02–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (46%) · trasher (39%) · energy storage (34%) · wind for allies (32%)

    By 2:51 in all: 4 mex · 5 wind

    The example game in this phase · 9 steps
    1. Wind
    2. Construction BotCon bot
    3. Wind ×2
    4. Construction BotCon bot ×2
    5. Mex
    6. GraverobberGraverobber
    7. TrasherTrasher
    8. GraverobberGraverobber
    9. ShipyardShipyarddone 2:45 · 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 (49%) · wind (48%) · missile corvette (48%) · destroyer (46%) · gunboat (40%)

    By 5:00 in all: 8 mex · 6 wind · 1 energy storage · 1 con turret

    The example game in this phase · 16 steps
    1. TrasherTrasher
    2. GraverobberGraverobber
    3. Mex
    4. Construction ShipCon ship
    5. GruntGrunt ×2
    6. OrcaSubmarinedone 3:31 · typical 4:19
    7. Mex ×2
    8. OrcaSubmarine
    9. Mex
    10. Radar TowerRadar Tower
    11. RiptideFrigatedone 4:17 · typical 4:35
    12. Wind
    13. RiptideFrigate
    14. Mex
    15. Wind
    16. OppressorDestroyerdone 5:29 · typical 5:52
  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
    • Oppressor2 Destroyer
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (47%) · Thistle (40%) · submarine (34%)

    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 · 99 steps
    1. Wind ×2
    2. Death CavalryDeath Cavalry
    3. HerringMissile corvette
    4. Wind
    5. Construction ShipCon ship
    6. HerringMissile corvette
    7. Wind
    8. RiptideFrigate ×2
    9. Wind
    10. Con turret
    11. OppressorDestroyer
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. GuardGuard
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. GuardGuard
    16. RiptideFrigate
    17. Con turret
    18. Death CavalryDeath Cavalry
    19. GuardGuard
    20. Wind
    21. HerringMissile corvette
    22. Wind
    23. RiptideFrigate
    24. Wind ×2
    25. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    26. Wind
    27. RiptideFrigate
    28. Wind
    29. GuardGuard
    30. OppressorDestroyer
    31. Wind
    32. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    33. Wind
    34. GuardGuard
    35. Wind
    36. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    37. Wind
    38. GuardGuard
    39. RiptideFrigate
    40. Wind
    41. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    42. Advanced Metal ExtractorT2 mexdone 11:21 · typical 9:22
    43. Wind
    44. Death CavalryDeath Cavalry
    45. Wind
    46. HerringMissile corvette
    47. GuardGuard
    48. Wind
    49. RiptideFrigate
    50. Wind
    51. RiptideFrigate
    52. Wind
    53. Advanced Metal ExtractorT2 mex
    54. Wind
    55. OppressorDestroyer
    56. Wind
    57. Converter
    58. Wind
    59. Con turret
    60. SlingshotSlingshot
    61. Advanced Metal ExtractorT2 mex
    62. RiptideFrigate
    63. Wind
    64. Converter
    65. SlingshotSlingshot
    66. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    67. Death CavalryDeath Cavalry
    68. Wind
    69. HerringMissile corvette
    70. Wind
    71. Converter
    72. RiptideFrigate
    73. Wind
    74. RiptideFrigate
    75. Wind
    76. OppressorDestroyer
    77. Wind
    78. Converter ×2
    79. Wind
    80. RiptideFrigate
    81. Wind
    82. Converter
    83. Death CavalryDeath Cavalry
    84. Advanced Metal ExtractorT2 mex
    85. Wind
    86. Converter ×2
    87. HerringMissile corvette
    88. RiptideFrigate
    89. Construction ShipCon ship
    90. Wind
    91. Construction ShipCon ship
    92. Wind
    93. Converter
    94. Tidal
    95. Wind
    96. Tidal
    97. Wind
    98. Converter
    99. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is Cloud_'s (49 OS, 02/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 72% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 83% 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

1095 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002900051
5:00410813052
6:005463440241
7:006945930551
8:0086091570904
9:001049124521351
10:001261236252061
11:001521948812901
12:001812163983761
13:002141473934451
14:002501686485371
15:002879197536300
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

Cloud_

48.9 OS · 02/09/2026

Open source match ↗

3 received units · includes a constructor
121 metal received · 12297 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=1084
Shipyard3:17Middle 50%: 3:02–3:33 · n=1089
Orca4:19Middle 50%: 3:54–5:00 · n=754
Riptide4:35Middle 50%: 4:08–5:20 · n=1063
Oppressor5:52Middle 50%: 5:08–6:35 · n=991
Geothermal Powerplant7:59Middle 50%: 7:01–9:00 · n=654
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=940

Played most by

sirniho122games of this buildSHOGVN92games of this buildOptimusprimenutt84games of this buildPRO_Rerory47games of this buildhihimik41games of this build