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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 · 4 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind ×4
    4. Bot LabBot Labdone 1:27 · 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 · 14 steps
    1. GraverobberGraverobber
    2. Wind
    3. Construction BotCon bot
    4. Wind
    5. GraverobberGraverobber
    6. Construction BotCon bot
    7. GraverobberGraverobber
    8. Construction BotCon bot
    9. Mex
    10. Construction BotCon bot
    11. Mex ×2
    12. Con turret
    13. Construction BotCon bot
    14. ShipyardShipyarddone 3:43 · 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 · 13 steps
    1. SupporterGunboat ×2
    2. Construction ShipCon ship
    3. Energy storage
    4. Radar TowerRadar Tower
    5. RiptideFrigatedone 4:24 · typical 4:36
    6. Mex ×2
    7. Death CavalryDeath Cavalry
    8. Construction ShipCon ship
    9. Wind
    10. GuardGuard
    11. Mex
    12. Geothermal PowerplantGeodone 5:43 · typical 7:58
    13. Death CavalryDeath Cavalry
  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 · 118 steps
    1. Mex
    2. Wind ×2
    3. GuardGuard
    4. Wind
    5. HerringMissile corvette
    6. Wind
    7. Radar TowerRadar Tower
    8. Wind
    9. Construction ShipCon ship
    10. Wind
    11. Con turret
    12. Wind
    13. GuardGuard ×2
    14. OppressorDestroyerdone 6:50 · typical 5:51
    15. Wind
    16. GuardGuard
    17. Radar TowerRadar Tower
    18. Wind
    19. Radar TowerRadar Tower
    20. Converter
    21. Construction ShipCon ship
    22. Energy storage
    23. Converter ×2
    24. RiptideFrigate
    25. GuardGuard
    26. Mex
    27. Converter ×2
    28. RiptideFrigate
    29. Metal storage
    30. Converter
    31. Advanced Metal ExtractorT2 mexdone 7:55 · typical 9:21
    32. RiptideFrigate
    33. Converter ×2
    34. RiptideFrigate
    35. GuardGuard
    36. Converter
    37. RiptideFrigate
    38. Advanced Metal ExtractorT2 mex
    39. Converter
    40. RiptideFrigate
    41. Converter
    42. OppressorDestroyer
    43. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    44. Converter ×3
    45. OppressorDestroyer
    46. Converter
    47. Advanced Metal ExtractorT2 mex
    48. Converter
    49. UrchinUrchin
    50. Converter ×2
    51. Advanced Metal ExtractorT2 mex
    52. RiptideFrigate
    53. Converter
    54. RiptideFrigate
    55. Converter
    56. RiptideFrigate
    57. Converter
    58. RiptideFrigate
    59. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    60. Converter
    61. Naval Construction Turret
    62. Death CavalryDeath Cavalry
    63. Converter
    64. UrchinUrchin
    65. Converter
    66. Naval Construction Turret
    67. Death CavalryDeath Cavalry
    68. Converter
    69. Naval Construction Turret
    70. UrchinUrchin
    71. Converter
    72. RiptideFrigate ×2
    73. Converter
    74. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    75. RiptideFrigate
    76. Converter
    77. UrchinUrchin
    78. Advanced Metal ExtractorT2 mex
    79. RiptideFrigate
    80. Converter
    81. HerringMissile corvette
    82. Converter
    83. HerringMissile corvette ×2
    84. Converter
    85. HerringMissile corvette
    86. Naval Construction Turret
    87. HerringMissile corvette
    88. Converter
    89. RiptideFrigate
    90. Converter
    91. RiptideFrigate
    92. Naval Metal Storage
    93. RiptideFrigate
    94. Converter
    95. Naval Construction Turret
    96. RiptideFrigate
    97. Converter
    98. Naval Construction Turret
    99. Advanced ShipyardAdvanced Shipyarddone 13:04
    100. Advanced Metal ExtractorT2 mex
    101. RiptideFrigate
    102. OppressorDestroyer ×2
    103. Advanced Construction SubAdvanced Construction Sub
    104. OppressorDestroyer
    105. Advanced Bot LabAdvanced Bot Labnot finished by 15:00
    106. VoyagerVoyager ×2
    107. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    108. VoyagerVoyager
    109. HerringMissile corvette
    110. VoyagerVoyager
    111. HerringMissile corvette
    112. VoyagerVoyager
    113. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    114. HerringMissile corvette
    115. HavenHaven
    116. HerringMissile corvette
    117. Tidal ×2
    118. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00

Counts are medians over the build's games: half of them build more, half fewer. The example game is arcsiz's (36 OS, 01/09/2026); 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

arcsiz

35.8 OS · 01/09/2026

Open source match ↗

3 received units · includes a constructor
2730 metal received · 38142 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