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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 · 5 steps
    1. Mex ×3
    2. Wind ×2
    3. Windfor Air
    4. Wind ×2
    5. Bot LabBot Labdone 1:18 · 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 · 10 steps
    1. Windfor Air
    2. Construction BotCon bot
    3. Wind ×2
    4. Construction BotCon bot ×2
    5. Mex
    6. GraverobberGraverobber ×2
    7. TrasherTrasher
    8. Mex
    9. GraverobberGraverobber
    10. ShipyardShipyarddone 3:04 · 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. GruntGrunt ×2
    3. Construction ShipCon ship
    4. Mex
    5. OrcaSubmarinedone 3:36 · typical 4:19
    6. Mex
    7. Radar TowerRadar Tower
    8. OrcaSubmarine
    9. Mex
    10. RiptideFrigatedone 4:24 · typical 4:35
    11. Wind
    12. RiptideFrigate
    13. Wind
    14. Mex
    15. RiptideFrigate
    16. 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
    • 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 · 106 steps
    1. Con turret
    2. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    3. Wind
    4. OppressorDestroyerdone 6:09 · typical 5:52
    5. Converter
    6. Death CavalryDeath Cavalry
    7. Wind
    8. Mex
    9. HerringMissile corvette
    10. Wind ×3
    11. Mex
    12. Wind ×2
    13. RiptideFrigate
    14. Wind
    15. OppressorDestroyer
    16. WardenWarden
    17. Wind
    18. Death CavalryDeath Cavalry
    19. Wind
    20. Con turret
    21. Advanced Metal ExtractorT2 mexdone 9:08 · typical 9:22
    22. HerringMissile corvette
    23. Wind
    24. HerringMissile corvette
    25. Con turret
    26. Wind
    27. HerringMissile corvette
    28. Wind
    29. Construction ShipCon ship
    30. Converter ×2
    31. Naval Energy Converter
    32. Converter
    33. Naval Energy Converter
    34. Converter
    35. Tidal
    36. Advanced Metal ExtractorT2 mex
    37. Tidal
    38. Converter ×2
    39. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    40. Advanced ShipyardAdvanced Shipyarddone 10:10
    41. Geothermal PowerplantGeodone 12:12 · typical 7:59
    42. Radar TowerRadar Tower
    43. Wind ×3
    44. Mex
    45. Advanced Construction SubAdvanced Construction Sub
    46. Wind
    47. Advanced Metal ExtractorT2 mex
    48. Wind
    49. PathfinderPathfinder
    50. Wind
    51. Mex
    52. Wind
    53. PathfinderPathfinder
    54. Wind ×2
    55. PathfinderPathfinder
    56. Wind
    57. DespotBattleshipdone 12:41
    58. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:01
    59. Wind ×2
    60. Tidal
    61. Wind ×2
    62. Tidal
    63. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    64. Wind ×2
    65. Tidal
    66. Advanced Metal ExtractorT2 mex
    67. Wind
    68. Con turret
    69. Wind ×2
    70. PhantasmRadar jammer ship
    71. Tidal
    72. Wind ×2
    73. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    74. Tidal
    75. Wind ×2
    76. BrimstoneAnti-swarm shipdone 13:27
    77. Wind
    78. Tidal
    79. Wind
    80. BrimstoneAnti-swarm ship
    81. Wind
    82. Tidal
    83. Arrow StormAnti-air shipdone 14:04
    84. Wind ×4
    85. Tidal
    86. Advanced Metal ExtractorT2 mex
    87. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    88. Wind
    89. Arrow StormAnti-air ship
    90. Wind ×2
    91. Tidal
    92. Wind
    93. Con turret
    94. Wind
    95. BuccaneerCruisernot finished by 15:00
    96. Tidal
    97. Wind ×2
    98. Bot LabBot Labdone 14:42
    99. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    100. Wind
    101. Con turret
    102. Wind ×2
    103. Construction BotCon bot
    104. Wind
    105. Con turret
    106. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is Cloud_'s (49 OS, 26/08/2026); 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

Cloud_

48.8 OS · 26/08/2026

Open source match ↗

4 received units · includes a constructor
60 metal received · 24474 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