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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 · 941 distinct matches · 99 players · 83% of Cortex Geo sea games · team won 52% of 1055 · 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 941 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 (50%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×5
    3. Bot LabBot Labdone 1:21 · 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 3:03–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (47%) · trasher (39%) · energy storage (34%) · wind for allies (33%)

    By 2:51 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 7 steps
    1. GraverobberGraverobber
    2. Construction BotCon bot
    3. GraverobberGraverobber
    4. Construction BotCon bot
    5. TrasherTrasher
    6. GraverobberGraverobber
    7. ShipyardShipyarddone 2:51 · 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 (47%) · 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 · 19 steps
    1. Mex
    2. OrcaSubmarinedone 3:22 · typical 4:19
    3. Energy storage
    4. Con turret
    5. Mex
    6. Construction ShipCon ship
    7. HerringMissile corvette
    8. Mex
    9. OppressorDestroyerdone 4:55 · typical 5:51
    10. Wind
    11. Mex
    12. Wind
    13. Converter
    14. Mex
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Wind
    17. Radar TowerRadar Tower
    18. RiptideFrigatedone 5:15 · typical 4:36
    19. Wind
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine8Wind
    • Energy Converter2Converter
    Builders
    • Construction Turret1 Con turret
    • Death Cavalry2 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Guard2 Guard
    • Riptide5 Frigate
    • Herring2 Missile corvette
    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 · 74 steps
    1. Wind
    2. RiptideFrigate
    3. Wind ×3
    4. RiptideFrigate
    5. Converter ×2
    6. HerringMissile corvette
    7. OppressorDestroyer
    8. Mex
    9. Converter ×2
    10. Advanced Metal ExtractorT2 mexdone 8:00 · typical 9:21
    11. Converter ×2
    12. Death CavalryDeath Cavalry
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    14. Converter
    15. RiptideFrigate ×2
    16. Advanced Metal ExtractorT2 mex
    17. Geothermal PowerplantGeodone 9:31 · typical 7:58
    18. RiptideFrigate
    19. Mex ×2
    20. Construction ShipCon ship
    21. Death CavalryDeath Cavalry
    22. Mex
    23. Vehicle PlantVehicle Plantdone 9:23
    24. HerringMissile corvette
    25. Advanced Metal ExtractorT2 mex
    26. BruteBrute
    27. Mex
    28. BruteBrute ×3
    29. Mex
    30. BruteBrute ×4
    31. Construction VehicleCon vehicle
    32. Advanced Construction BotT2 con bot
    33. BruteBrute
    34. Amphibious ComplexAmphibious Complexdone 12:53
    35. BruteBrute
    36. Mex
    37. BruteBrute
    38. Naval Energy Storage
    39. BruteBrute
    40. Construction ShipCon ship
    41. Mex
    42. Naval Construction Turret
    43. JaguarJaguar
    44. BruteBrute ×2
    45. Advanced Metal ExtractorT2 mex
    46. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    47. Poison ArrowPoison arrowdone 13:33
    48. BruteBrute
    49. Tidal
    50. RocketeerRocketeer
    51. BruteBrute
    52. Tidal
    53. RocketeerRocketeer
    54. BruteBrute
    55. Tidal
    56. RocketeerRocketeer
    57. BruteBrute
    58. Tidal
    59. SalamanderSalamander
    60. BruteBrute
    61. Naval Construction Turret
    62. SalamanderSalamander
    63. BruteBrute
    64. Advanced ShipyardAdvanced Shipyarddone 14:40
    65. SalamanderSalamander
    66. BruteBrute
    67. SalamanderSalamander
    68. BruteBrute
    69. Advanced Metal ExtractorT2 mex
    70. Naval Construction Turret
    71. BruteBrute
    72. RascalRascal ×3
    73. SalamanderSalamander
    74. RascalRascal ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is Tregan's (37 OS, 19/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:47 · in 73% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 82% 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

1055 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00157000
4:002904051
5:00410813052
6:005464440241
7:006950931547
8:0086211570892
9:001050224471351
10:001263036252071
11:001525849012945
12:001816664063801
13:002151274084465
14:002512586485401
15:002884498106321
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

Tregan

37.4 OS · 19/09/2026

Open source match ↗

5 received units · includes a constructor
39 metal received · 105607 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=1047
Shipyard3:17Middle 50%: 3:03–3:33 · n=1049
Orca4:19Middle 50%: 3:53–5:00 · n=727
Riptide4:36Middle 50%: 4:09–5:21 · n=1025
Oppressor5:51Middle 50%: 5:09–6:33 · n=954
Geothermal Powerplant7:58Middle 50%: 7:00–8:59 · n=635
Advanced Metal Extractor9:21Middle 50%: 8:45–10:10 · n=905

Played most by

sirniho119games of this buildOptimusprimenutt84games of this buildSHOGVN81games of this buildPRO_Rerory46games of this buildhihimik41games of this build