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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

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 · 963 distinct matches · 100 players · 83% of Cortex Geo sea games · team won 52% of 1080 · 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 963 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 1:06–1:25

    Some games also: wind for allies (49%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 1 step
    1. Mex ×4
  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 · 6 steps
    1. Radar TowerRadar Tower
    2. Mex ×2
    3. Tidal
    4. Radar TowerRadar Tower
    5. Tidal ×2
    6. 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 · 14 steps
    1. Con turret
    2. Tidal
    3. Construction ShipCon ship
    4. Tidal ×2
    5. Construction ShipCon ship
    6. UrchinUrchin
    7. OrcaSubmarinedone 4:44 · typical 4:19
    8. Naval Construction Turret
    9. Con turret
    10. Naval Energy Storage
    11. HerringMissile corvette
    12. Wind ×2
    13. HerringMissile corvette
    14. 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 (48%) · Thistle (41%) · 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 · 75 steps
    1. RiptideFrigatedone 5:23 · typical 4:36
    2. UrchinUrchin
    3. Wind
    4. Converter
    5. Wind
    6. RiptideFrigate
    7. Wind ×3
    8. RiptideFrigate
    9. Converter
    10. Wind ×4
    11. Converter
    12. Mex
    13. Wind ×3
    14. Death CavalryDeath Cavalry
    15. Converter
    16. Wind ×3
    17. Mex
    18. OppressorDestroyerdone 7:23 · typical 5:52
    19. Wind
    20. Converter
    21. Advanced Metal ExtractorT2 mexdone 8:28 · typical 9:22
    22. Wind ×4
    23. Converter
    24. Wind
    25. Construction ShipCon ship
    26. Wind ×3
    27. Mex
    28. Converter
    29. OrcaSubmarine
    30. Naval Construction Turret
    31. Wind ×2
    32. UrchinUrchin
    33. Wind ×2
    34. Converter
    35. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    36. OrcaSubmarine
    37. Advanced Metal ExtractorT2 mex
    38. OrcaSubmarine
    39. JellyfishJellyfish
    40. UrchinUrchin
    41. OrcaSubmarine
    42. Advanced Metal ExtractorT2 mex
    43. OrcaSubmarine ×4
    44. ShipyardShipyarddone 10:52
    45. Advanced Metal ExtractorT2 mex
    46. UrchinUrchin
    47. OppressorDestroyer
    48. Naval Construction Turret ×2
    49. RiptideFrigate
    50. UrchinUrchin
    51. RiptideFrigate
    52. UrchinUrchin
    53. CompassRadar bot
    54. RiptideFrigate
    55. Advanced Metal ExtractorT2 mex
    56. RiptideFrigate
    57. UrchinUrchin
    58. RiptideFrigate ×2
    59. Naval Construction Turret
    60. Death CavalryDeath Cavalry
    61. HerringMissile corvette
    62. Death CavalryDeath Cavalry
    63. Advanced Metal ExtractorT2 mex
    64. Naval Construction Turret
    65. Death CavalryDeath Cavalry
    66. Naval Construction Turret
    67. RiptideFrigate
    68. Death CavalryDeath Cavalry
    69. BeamerBeamer
    70. OppressorDestroyer
    71. BeamerBeamer
    72. RiptideFrigate ×2
    73. BeamerBeamer
    74. RiptideFrigate
    75. Construction ShipCon ship

Counts are medians over the build's games: half of them build more, half fewer. The example game is _X_'s (41 OS, 28/09/2026); 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

1080 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002903051
5:00410813152
6:005464441242
7:006946931551
8:0086181570905
9:001049724631363
10:001261536342072
11:001522148872938
12:001812964053801
13:002147974014458
14:002507986465388
15:002882297766321
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

_X_

41.4 OS · 28/09/2026

Open source match ↗

7 received units · includes a constructor
57 metal received · 13971 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:25 · n=1069
Shipyard3:17Middle 50%: 3:02–3:33 · n=1074
Orca4:19Middle 50%: 3:54–5:00 · n=747
Riptide4:36Middle 50%: 4:08–5:21 · n=1048
Oppressor5:52Middle 50%: 5:09–6:34 · n=977
Geothermal Powerplant7:59Middle 50%: 7:01–8:59 · n=648
Advanced Metal Extractor9:22Middle 50%: 8:46–10:10 · n=926

Played most by

sirniho121games of this buildSHOGVN86games of this buildOptimusprimenutt84games of this buildPRO_Rerory47games of this buildhihimik41games of this build