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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 · 4 steps
    1. Mex ×3
    2. Windfor Air
    3. Wind ×4
    4. Bot LabBot Labdone 1:19 · 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 · 7 steps
    1. Windfor Air
    2. GraverobberGraverobber ×2
    3. Construction BotCon bot
    4. TrasherTrasher
    5. Construction BotCon bot ×5
    6. Mex
    7. ShipyardShipyarddone 3:10 · 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 · 12 steps
    1. GruntGrunt
    2. OrcaSubmarinedone 3:29 · typical 4:19
    3. ThistleThistle
    4. Construction ShipCon ship
    5. Mex ×2
    6. RiptideFrigatedone 4:05 · typical 4:35
    7. GuardGuard
    8. OppressorDestroyerdone 6:00 · typical 5:52
    9. Mex
    10. Radar TowerRadar Tower
    11. Geothermal PowerplantGeodone 5:45 · typical 7:59
    12. Mex
  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 · 120 steps
    1. Con turret
    2. Mex
    3. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    4. ThistleThistle
    5. Converter
    6. GuardGuard
    7. HerringMissile corvette
    8. Converter
    9. RiptideFrigate
    10. Converter
    11. OppressorDestroyer
    12. Converter ×2
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. HerringMissile corvette
    15. Death CavalryDeath Cavalry
    16. RiptideFrigate
    17. OppressorDestroyer
    18. Con turret
    19. Wind ×3
    20. HerringMissile corvette
    21. Wind ×2
    22. Death CavalryDeath Cavalry
    23. Wind
    24. Con turret
    25. Wind
    26. RiptideFrigate
    27. Wind
    28. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    29. OppressorDestroyer
    30. Wind ×4
    31. HerringMissile corvette
    32. Wind
    33. Death CavalryDeath Cavalry
    34. Wind ×2
    35. RiptideFrigate
    36. Wind
    37. HerringMissile corvette
    38. GuardGuard
    39. OppressorDestroyer
    40. Wind
    41. Advanced Metal ExtractorT2 mexdone 10:47
    42. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    43. Wind ×2
    44. GuardGuard
    45. Wind
    46. Mex
    47. Wind ×2
    48. SlingshotSlingshot
    49. HerringMissile corvette
    50. Wind
    51. Death CavalryDeath Cavalry
    52. GuardGuard
    53. Wind
    54. RiptideFrigate
    55. Wind
    56. OppressorDestroyer
    57. Wind ×2
    58. GuardGuard
    59. OppressorDestroyer
    60. HerringMissile corvette
    61. Death CavalryDeath Cavalry
    62. Mex
    63. Construction ShipCon ship
    64. Con turret
    65. Wind ×2
    66. Construction ShipCon ship
    67. Wind
    68. Naval Construction Turret
    69. Tidal
    70. Wind
    71. Metal storage
    72. Advanced Metal ExtractorT2 mex
    73. Tidal
    74. Wind
    75. Tidal
    76. Naval Construction Turret
    77. Wind
    78. Tidal ×4
    79. Wind
    80. Tidal ×2
    81. Wind
    82. Tidal ×4
    83. Mex
    84. Tidal ×3
    85. Advanced Metal ExtractorT2 mex
    86. Naval Construction Turret ×2
    87. Dragon's TeethDragon's Teeth
    88. Naval Construction Turret
    89. Dragon's TeethDragon's Teeth ×2
    90. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    91. Dragon's TeethDragon's Teeth
    92. Amphibious ComplexAmphibious Complexdone 13:57
    93. Dragon's TeethDragon's Teeth
    94. GuardGuard
    95. Dragon's TeethDragon's Teeth ×2
    96. SalamanderSalamander
    97. ThistleThistle
    98. Dragon's TeethDragon's Teeth
    99. Con turret
    100. Dragon's TeethDragon's Teeth
    101. Naval Construction Turret
    102. Dragon's TeethDragon's Teeth
    103. SalamanderSalamander
    104. Con turret
    105. Dragon's TeethDragon's Teeth
    106. Con turret
    107. Dragon's TeethDragon's Teeth
    108. Mex
    109. SalamanderSalamander
    110. Advanced Metal ExtractorT2 mex
    111. Dragon's TeethDragon's Teeth
    112. Con turret
    113. SalamanderSalamander
    114. Dragon's TeethDragon's Teeth
    115. Bot LabBot Labdone 14:37
    116. Dragon's TeethDragon's Teeth
    117. Bot LabBot Labdone 14:40
    118. SalamanderSalamander
    119. Dragon's TeethDragon's Teeth
    120. Bot LabBot Labnot finished by 15:00

Counts are medians over the build's games: half of them build more, half fewer. The example game is tedsterr's (44 OS, 23/08/2026); 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

tedsterr

44.0 OS · 23/08/2026

Open source match ↗

4 received units · includes a constructor
1543 metal received · 9286 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