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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. Solar
    3. Wind ×2for Air
    4. Bot LabBot Labdone 1:09 · 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. GraverobberGraverobber
    3. Construction BotCon bot
    4. Wind ×2
    5. Construction BotCon bot ×2
    6. GraverobberGraverobber
    7. Energy storage
    8. GraverobberGraverobber
    9. ShipyardShipyarddone 2:59 · 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 · 26 steps
    1. Mex ×2
    2. Construction ShipCon ship
    3. SupporterGunboat
    4. Con turret
    5. Mex
    6. SupporterGunboat
    7. Mex
    8. Converter
    9. SupporterGunboat
    10. Converter
    11. SupporterGunboat
    12. Mex ×2
    13. Radar TowerRadar Tower
    14. Converter
    15. SupporterGunboat
    16. Converter
    17. OrcaSubmarinedone 4:33 · typical 4:19
    18. Wind ×3
    19. Mex ×2
    20. RiptideFrigatedone 4:48 · typical 4:35
    21. ThistleThistle
    22. Wind
    23. GuardGuard
    24. RiptideFrigate
    25. Wind ×2
    26. ThistleThistle
  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 · 102 steps
    1. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    2. Wind
    3. HerringMissile corvette
    4. Wind
    5. OppressorDestroyerdone 6:04 · typical 5:52
    6. GuardGuard ×2
    7. Wind ×2
    8. Radar TowerRadar Tower
    9. GuardGuard
    10. Death CavalryDeath Cavalry
    11. ThistleThistle
    12. RiptideFrigate
    13. GuardGuard
    14. RiptideFrigate
    15. GuardGuard
    16. Geothermal PowerplantGeodone 9:04 · typical 7:59
    17. HerringMissile corvette
    18. OppressorDestroyer
    19. Construction ShipCon ship
    20. Advanced Metal ExtractorT2 mexdone 8:56 · typical 9:22
    21. Death CavalryDeath Cavalry
    22. RiptideFrigate ×2
    23. GuardGuard
    24. HerringMissile corvette
    25. Construction ShipCon ship
    26. Tidal
    27. Radar TowerRadar Tower
    28. Tidal
    29. Construction ShipCon ship
    30. Tidal ×2
    31. Death CavalryDeath Cavalry
    32. Tidal
    33. Advanced Metal ExtractorT2 mex
    34. Tidal
    35. Death CavalryDeath Cavalry
    36. GuardGuard
    37. Tidal ×2
    38. GuardGuard
    39. Tidal ×2
    40. ThistleThistle
    41. GuardGuard
    42. Naval Construction Turret ×2
    43. ThistleThistle
    44. Seaplane PlatformSeaplane Platformdone 10:19
    45. Mex
    46. Advanced Metal ExtractorT2 mex
    47. Dam BusterSeaplane bomber ×2
    48. Mex
    49. Dam BusterSeaplane bomber ×2
    50. Converter
    51. Dam BusterSeaplane bomber
    52. Converter
    53. Mex
    54. Dam BusterSeaplane bomber
    55. Converter
    56. Advanced Metal ExtractorT2 mex
    57. Dam BusterSeaplane bomber
    58. Converter
    59. BatSeaplane fighter
    60. Converter
    61. BatSeaplane fighter
    62. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    63. Con turret
    64. BatSeaplane fighter
    65. Wind
    66. BatSeaplane fighter
    67. Wind
    68. BatSeaplane fighter
    69. Wind
    70. BatSeaplane fighter
    71. Wind
    72. BatSeaplane fighter
    73. Wind
    74. BatSeaplane fighter
    75. Wind
    76. BatSeaplane fighter
    77. Wind
    78. Advanced Metal ExtractorT2 mex
    79. BatSeaplane fighter
    80. Wind
    81. Advanced ShipyardAdvanced Shipyarddone 13:18
    82. Wind ×4
    83. Advanced Construction SubAdvanced Construction Sub
    84. Wind
    85. Mex
    86. PathfinderPathfinder
    87. Wind
    88. PathfinderPathfinder
    89. Wind
    90. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:26
    91. Wind
    92. OasisOasis
    93. Wind
    94. Advanced Metal ExtractorT2 mex
    95. Wind
    96. Con turret ×3
    97. OasisOasis
    98. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    99. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    100. Wind
    101. OasisOasis
    102. MonsoonTorpedo gunship

Counts are medians over the build's games: half of them build more, half fewer. The example game is Elpoloow's (35 OS, 27/08/2026); 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

Elpoloow

35.3 OS · 27/08/2026

Open source match ↗

4 received units · includes a constructor
39 metal received · 81295 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