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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 · 4 steps
    1. Mex ×3
    2. Wind ×2
    3. Wind ×2for Air
    4. Bot LabBot Labdone 1:14 · 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 · 13 steps
    1. GraverobberGraverobber ×3
    2. Construction BotCon bot
    3. TrasherTrasher
    4. GruntGrunt ×2
    5. Con turret
    6. Construction BotCon bot
    7. Wind ×2
    8. Energy storage
    9. Construction BotCon bot
    10. Wind
    11. Mex
    12. Radar TowerRadar Tower
    13. ShipyardShipyarddone 3:44 · 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 · 10 steps
    1. GuardGuard
    2. Construction ShipCon ship
    3. GuardGuard
    4. HerringMissile corvette
    5. RiptideFrigatedone 4:12 · typical 4:36
    6. Geothermal PowerplantGeodone 5:57 · typical 7:59
    7. RiptideFrigate
    8. GuardGuard
    9. Radar TowerRadar Tower
    10. Mex ×2
  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 · 102 steps
    1. Mex ×2
    2. RiptideFrigate
    3. Converter ×4
    4. Radar TowerRadar Tower
    5. OppressorDestroyerdone 6:42 · typical 5:52
    6. Mex
    7. Converter
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. Converter ×3
    10. Death CavalryDeath Cavalry
    11. Converter ×2
    12. Death CavalryDeath Cavalry
    13. Wind ×2
    14. OppressorDestroyer
    15. Wind ×2
    16. Con turret
    17. Wind ×2
    18. Construction ShipCon ship
    19. Wind
    20. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    21. Wind
    22. Con turret
    23. Wind
    24. Naval Construction Turret
    25. Wind
    26. Con turret
    27. Wind
    28. Naval Construction Turret
    29. Wind
    30. Mex
    31. Wind ×2
    32. Con turret
    33. Construction ShipCon ship
    34. Wind ×2
    35. Advanced Metal ExtractorT2 mexdone 9:38 · typical 9:22
    36. Mex
    37. Advanced Metal ExtractorT2 mex
    38. Mex
    39. Advanced Metal ExtractorT2 mex
    40. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    41. Naval Construction Turret ×2
    42. Con turret
    43. Advanced Metal ExtractorT2 mex
    44. Con turret ×2
    45. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    46. Seaplane PlatformSeaplane Platformdone 11:17
    47. Advanced Metal ExtractorT2 mex
    48. Dam BusterSeaplane bomber ×3
    49. Wind
    50. Dam BusterSeaplane bomber
    51. Wind
    52. Dam BusterSeaplane bomber
    53. Wind
    54. Dam BusterSeaplane bomber
    55. BeholderBeholder
    56. Wind
    57. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    58. Advanced Metal ExtractorT2 mex
    59. Dam BusterSeaplane bomber
    60. Wind
    61. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    62. Dam BusterSeaplane bomber
    63. Wind ×2
    64. Dam BusterSeaplane bomber
    65. Wind
    66. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    67. Wind
    68. Dam BusterSeaplane bomber
    69. Wind ×2
    70. Dragon's MawDragon's Maw
    71. Wind
    72. CutlassSeaplane gunship
    73. Wind ×2
    74. CutlassSeaplane gunship
    75. Wind
    76. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 14:39
    77. CutlassSeaplane gunship
    78. Wind
    79. CutlassSeaplane gunship
    80. Wind
    81. CutlassSeaplane gunship
    82. Wind
    83. CutlassSeaplane gunship
    84. Wind ×2
    85. CutlassSeaplane gunship
    86. Wind
    87. Advanced ShipyardAdvanced Shipyarddone 14:00
    88. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    89. Wind
    90. CutlassSeaplane gunship
    91. Construction SeaplaneConstruction Seaplane
    92. Wind ×2
    93. Construction SeaplaneConstruction Seaplane ×2
    94. Advanced Construction SubAdvanced Construction Sub
    95. PathfinderPathfinder ×2
    96. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    97. PathfinderPathfinder
    98. Con turret ×2
    99. PathfinderPathfinder
    100. Con turret
    101. PathfinderPathfinder
    102. Con turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is [MooDeng]NongJohn's (39 OS, 25/09/2026); 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

[MooDeng]NongJohn

39.2 OS · 25/09/2026

Open source match ↗

4 received units · includes a constructor
248 metal received · 116298 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