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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 · 992 distinct matches · 101 players · 83% of Cortex Geo sea games · team won 52% of 1113 · 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 992 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 1:07–1:26

    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 · 1 energy storage

    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 (49%) · missile corvette (48%) · destroyer (46%) · gunboat (41%)

    By 5:00 in all: 8 mex · 6 wind · 1 energy storage · 1 con turret

    The example game in this phase · 34 steps
    1. Mex
    2. Con turret
    3. Construction ShipCon ship
    4. Mex
    5. SupporterGunboat
    6. Mex
    7. Converter
    8. SupporterGunboat
    9. Mex
    10. Converter
    11. Mex
    12. SupporterGunboat
    13. Converter
    14. SupporterGunboat
    15. Mex
    16. Converter
    17. Radar TowerRadar Tower
    18. SupporterGunboat
    19. Wind
    20. OrcaSubmarinedone 4:34 · typical 4:19
    21. ThistleThistle
    22. Wind
    23. Mex
    24. Wind ×2
    25. ThistleThistle
    26. GuardGuard
    27. Mex
    28. RiptideFrigatedone 4:49 · typical 4:35
    29. Wind
    30. Mexfor Suicide front
    31. RiptideFrigate
    32. Wind
    33. GuardGuard
    34. Mexfor Suicide front
  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
    • Guard1 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 · 67 steps
    1. HerringMissile corvette
    2. GuardGuard
    3. Wind
    4. OppressorDestroyerdone 5:54 · typical 5:52
    5. Wind
    6. GuardGuard
    7. Radar TowerRadar Tower
    8. ThistleThistle
    9. Death CavalryDeath Cavalry
    10. GuardGuard
    11. RiptideFrigate
    12. GuardGuard
    13. RiptideFrigate
    14. Geothermal PowerplantGeodone 8:53 · typical 8:00
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. HerringMissile corvette
    17. GuardGuard
    18. Advanced Metal ExtractorT2 mexdone 8:08 · typical 9:21
    19. OppressorDestroyer
    20. Construction ShipCon ship
    21. Radar TowerRadar Tower
    22. Death CavalryDeath Cavalry
    23. Advanced Metal ExtractorT2 mex
    24. RiptideFrigate ×2
    25. HerringMissile corvette
    26. OppressorDestroyer
    27. Advanced Metal ExtractorT2 mex
    28. RiptideFrigate
    29. Tidal
    30. RiptideFrigate
    31. Tidal
    32. HerringMissile corvette
    33. Advanced Metal ExtractorT2 mex
    34. OppressorDestroyer
    35. Tidal ×2
    36. RiptideFrigate
    37. Tidal
    38. Con turret
    39. RiptideFrigate
    40. Tidal
    41. Naval Metal Storage
    42. Wind
    43. Naval Construction Turret
    44. Con turret
    45. HerringMissile corvette
    46. Construction ShipCon ship
    47. Wind
    48. Seaplane PlatformSeaplane Platformdone 12:20
    49. Con turret
    50. Advanced Metal ExtractorT2 mex
    51. Wind ×3
    52. Dam BusterSeaplane bomber
    53. Wind ×4
    54. Dam BusterSeaplane bomber
    55. Wind
    56. Twin GuardTwin Guard
    57. Dam BusterSeaplane bomber
    58. Twin GuardTwin Guard
    59. Wind
    60. Mex
    61. Dam BusterSeaplane bomber
    62. Wind ×3
    63. Dam BusterSeaplane bomber
    64. Wind ×2
    65. Advanced Metal ExtractorT2 mex
    66. Wind ×2
    67. Dam BusterSeaplane bomber

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 71% 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 7:43 · 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

1113 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002898051
5:00410813552
6:005460441241
7:006945930551
8:0086181570906
9:001049624471369
10:001260736252062
11:001521748682895
12:001810763203785
13:002136373644451
14:002499686105354
15:002874296936321
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
262 metal received · 65613 energy received

Allied construction assistance is unknown. Timings are observations, not a promise of solo reproducibility.

Typical milestones

Bot Lab1:12Middle 50%: 1:07–1:26 · n=1102
Shipyard3:17Middle 50%: 3:02–3:33 · n=1107
Orca4:19Middle 50%: 3:54–5:00 · n=768
Riptide4:35Middle 50%: 4:07–5:20 · n=1080
Oppressor5:52Middle 50%: 5:08–6:36 · n=1008
Geothermal Powerplant8:00Middle 50%: 7:01–9:02 · n=664
Advanced Metal Extractor9:21Middle 50%: 8:45–10:10 · n=954

Played most by

sirniho123games of this buildSHOGVN94games of this buildOptimusprimenutt84games of this buildPRO_Rerory48games of this buildhihimik41games of this build