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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 ×2for Air
    3. Wind ×4
    4. Solar
    5. Bot LabBot Labdone 1:32 · 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. GraverobberGraverobber
    2. Construction BotCon bot ×2
    3. Wind ×2
    4. Construction BotCon bot
    5. GruntGrunt
    6. Mex
    7. Con turret ×2
    8. ThistleThistle
    9. ShipyardShipyarddone 3:25 · 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 · 13 steps
    1. Energy storage
    2. ThistleThistle
    3. Mex ×2
    4. RiptideFrigate ×2done 3:37 · typical 4:35
    5. ThistleThistle
    6. Mex
    7. Construction ShipCon ship
    8. Radar TowerRadar Tower
    9. OrcaSubmarinedone 4:30 · typical 4:19
    10. RiptideFrigate
    11. Mex ×2
    12. HerringMissile corvette
    13. RiptideFrigate
  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 · 103 steps
    1. Mex
    2. Wind
    3. RiptideFrigate
    4. OppressorDestroyerdone 6:09 · typical 5:52
    5. Wind ×2
    6. Mex
    7. Wind
    8. HerringMissile corvette
    9. Wind
    10. HerringMissile corvette
    11. Wind
    12. HerringMissile corvette
    13. Construction ShipCon ship
    14. Geothermal PowerplantGeodone 8:16 · typical 7:59
    15. GuardGuard
    16. RiptideFrigate
    17. GuardGuard
    18. RiptideFrigate
    19. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    20. OppressorDestroyer
    21. Mex
    22. Dragon's TeethDragon's Teeth ×3
    23. GuardGuard
    24. Mex
    25. Converter
    26. Advanced Metal ExtractorT2 mexdone 9:32 · typical 9:22
    27. Death CavalryDeath Cavalry
    28. HerringMissile corvette ×2
    29. Converter
    30. HerringMissile corvette
    31. RiptideFrigate
    32. Converter
    33. RiptideFrigate
    34. Mex
    35. RiptideFrigate
    36. Converter
    37. RiptideFrigate
    38. Mex
    39. Tidal
    40. Con turret
    41. Advanced Metal ExtractorT2 mex
    42. Con turret
    43. Tidal ×3
    44. Con turret
    45. Tidal ×3
    46. Advanced ShipyardAdvanced Shipyarddone 10:39
    47. Tidal
    48. Advanced Construction SubAdvanced Construction Sub
    49. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    50. Tidal
    51. Advanced Metal ExtractorT2 mex
    52. Tidal
    53. PathfinderPathfinder
    54. Tidal
    55. PathfinderPathfinder
    56. Tidal
    57. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    58. PhantasmRadar jammer ship
    59. Tidal
    60. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 11:46
    61. Converter
    62. Tidal
    63. MessengerCruise missile shipdone 11:45
    64. Converter
    65. Tidal
    66. Converter
    67. Tidal
    68. Converter
    69. PathfinderPathfinder
    70. Tidal
    71. Converter
    72. Bot LabBot Labdone 11:58
    73. PathfinderPathfinder
    74. Converter
    75. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    76. Tidal ×4
    77. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    78. Tidal
    79. Construction BotCon bot
    80. Tidal
    81. Construction BotCon bot ×8
    82. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    83. Construction BotCon bot ×6
    84. Advanced Bot LabAdvanced Bot Labdone 13:50
    85. Con turret ×2
    86. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    87. Advanced Construction BotT2 con bot
    88. Con turret
    89. Advanced Construction BotT2 con bot
    90. Con turret
    91. PlatypusPlatypus
    92. Con turret
    93. Advanced Metal ExtractorT2 mex
    94. Con turret ×3
    95. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    96. Fusion ReactorFusionnot finished by 15:00
    97. Con turret ×2
    98. Metal storage
    99. Con turret
    100. CitadelAnti-nukenot finished by 15:00
    101. Con turret
    102. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    103. Con turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is Blover's (38 OS, 14/09/2026); 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

Blover

37.9 OS · 14/09/2026

Open source match ↗

7 received units · includes a constructor
538 metal received · 79322 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