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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 1:07 · 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. Wind
    2. GraverobberGraverobber
    3. Construction BotCon bot
    4. Wind ×2
    5. Construction BotCon bot ×2
    6. GraverobberGraverobber
    7. Energy storage
    8. GraverobberGraverobber
    9. Mex
    10. ShipyardShipyarddone 3:02 · 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 · 30 steps
    1. SupporterGunboat
    2. Con turret
    3. Mex
    4. GuardGuard
    5. SupporterGunboat ×2
    6. Converter
    7. GuardGuard
    8. SupporterGunboat
    9. Converter
    10. SupporterGunboat
    11. Converter
    12. Construction ShipCon ship
    13. Converter
    14. SupporterGunboat
    15. Mex ×2
    16. Wind
    17. Mex
    18. SupporterGunboat
    19. Wind ×2
    20. SupporterGunboat
    21. Wind
    22. GuardGuard
    23. Mex
    24. SupporterGunboat
    25. Wind
    26. Mex
    27. SupporterGunboat
    28. Wind
    29. RiptideFrigatedone 5:03 · typical 4:35
    30. 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 · 91 steps
    1. RiptideFrigate
    2. Wind
    3. Mex
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. GuardGuard
    6. Radar TowerRadar Tower
    7. HerringMissile corvette
    8. Mex
    9. OppressorDestroyerdone 6:20 · typical 5:52
    10. GuardGuard
    11. Mex
    12. GuardGuard
    13. Geothermal PowerplantGeodone 8:56 · typical 7:59
    14. Death CavalryDeath Cavalry
    15. GuardGuard
    16. RiptideFrigate
    17. Radar TowerRadar Tower
    18. RiptideFrigate
    19. GuardGuard
    20. ThistleThistle
    21. HerringMissile corvette
    22. Construction ShipCon ship
    23. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    24. Advanced Metal ExtractorT2 mexdone 8:18
    25. Mex
    26. GuardGuard
    27. Construction ShipCon ship
    28. Mex
    29. Tidal
    30. Death CavalryDeath Cavalry
    31. Advanced Metal ExtractorT2 mex
    32. Tidal ×4
    33. Advanced Metal ExtractorT2 mex
    34. Death CavalryDeath Cavalry
    35. Tidal
    36. Radar TowerRadar Tower
    37. Tidal
    38. Mex
    39. Tidal ×2
    40. Naval Construction Turret
    41. Tidal ×2
    42. Naval Construction Turret
    43. Advanced Metal ExtractorT2 mex
    44. Naval Construction Turret ×2
    45. Con turret
    46. Seaplane PlatformSeaplane Platformdone 11:12
    47. Naval Construction Turret
    48. Con turret
    49. Naval Construction Turret
    50. Amphibious ComplexAmphibious Complexdone 11:17
    51. Con turret
    52. Dam BusterSeaplane bomber
    53. Advanced Metal ExtractorT2 mex
    54. Con turret
    55. Dam BusterSeaplane bomber
    56. Wind ×2
    57. Dam BusterSeaplane bomber
    58. SalamanderSalamander
    59. Wind ×2
    60. Dam BusterSeaplane bomber
    61. Wind ×2
    62. Dam BusterSeaplane bomber
    63. Wind ×2
    64. Dam BusterSeaplane bomber
    65. Wind ×3
    66. Dam BusterSeaplane bomber
    67. Wind ×3
    68. WatcherRadar plane
    69. Wind ×10
    70. Advanced Metal ExtractorT2 mex
    71. Wind ×8
    72. Advanced ShipyardAdvanced Shipyarddone 13:26
    73. SalamanderSalamander
    74. Wind
    75. SalamanderSalamander ×2
    76. PhantasmRadar jammer ship
    77. SalamanderSalamander
    78. Wind
    79. Advanced Construction SubAdvanced Construction Sub
    80. SalamanderSalamander ×2
    81. PathfinderPathfinder
    82. Wind
    83. PathfinderPathfinder
    84. SalamanderSalamander
    85. PathfinderPathfinder
    86. SalamanderSalamander
    87. Wind
    88. SalamanderSalamander ×3
    89. Wind
    90. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:56
    91. SalamanderSalamander ×2

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
624 metal received · 77022 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