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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 · 919 distinct matches · 98 players · 83% of Cortex Geo sea games · team won 52% of 1030 · 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 919 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 · 7 steps
    1. Mex ×3
    2. Windfor Air
    3. Wind ×2
    4. Energy storage
    5. Wind ×2for Air
    6. Wind ×2
    7. Bot LabBot Labdone 1:53 · 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 (35%) · wind for allies (33%)

    By 2:52 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 8 steps
    1. Construction BotCon bot
    2. Wind
    3. Construction BotCon bot ×2
    4. GraverobberGraverobber
    5. Con turret
    6. GraverobberGraverobber
    7. TrasherTrasher
    8. ShipyardShipyarddone 3:36 · 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 (50%) · 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 · 15 steps
    1. GraverobberGraverobber
    2. GruntGrunt
    3. Mex
    4. Wind
    5. SupporterGunboat ×4
    6. Construction ShipCon ship
    7. Wind
    8. SupporterGunboat ×3
    9. Mex
    10. Wind
    11. SupporterGunboat ×2
    12. OrcaSubmarinedone 5:23 · typical 4:19
    13. Mex
    14. Wind
    15. Mex ×2
  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 · 141 steps
    1. Wind
    2. Radar TowerRadar Tower
    3. GuardGuard
    4. Wind
    5. RiptideFrigatedone 5:57 · typical 4:35
    6. GuardGuard
    7. Geothermal PowerplantGeodone 7:50 · typical 7:58
    8. Mex
    9. RiptideFrigate
    10. GuardGuard ×2
    11. RiptideFrigate
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. Death CavalryDeath Cavalry
    14. Advanced Metal ExtractorT2 mexdone 8:20 · typical 9:22
    15. RiptideFrigate
    16. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    17. Converter ×2
    18. Construction ShipCon ship
    19. Converter
    20. HerringMissile corvette
    21. Converter
    22. Advanced Metal ExtractorT2 mex
    23. HerringMissile corvette
    24. OppressorDestroyernot finished by 15:00 · typical 5:51
    25. Construction ShipCon ship
    26. Mex
    27. Converter
    28. RiptideFrigate
    29. Con turret
    30. RiptideFrigate
    31. Mex
    32. Naval Construction Turret
    33. Con turret
    34. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    35. Advanced Metal ExtractorT2 mex
    36. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    37. Naval Construction Turret
    38. Dragon's TeethDragon's Teeth
    39. RiptideFrigate
    40. Dragon's TeethDragon's Teeth
    41. Tidal
    42. Con turret
    43. Dragon's TeethDragon's Teeth ×4
    44. Mex
    45. Tidal
    46. Dragon's TeethDragon's Teeth ×3
    47. Tidal
    48. RiptideFrigate
    49. Dragon's TeethDragon's Teeth
    50. Tidal
    51. Dragon's TeethDragon's Teeth
    52. RiptideFrigate
    53. Tidal
    54. Dragon's TeethDragon's Teeth
    55. Advanced Metal ExtractorT2 mex
    56. Dragon's TeethDragon's Teeth
    57. Tidal
    58. OppressorDestroyer
    59. Dragon's TeethDragon's Teeth
    60. Tidal
    61. Dragon's TeethDragon's Teeth
    62. SlingshotSlingshot
    63. Dragon's TeethDragon's Teeth
    64. Con turret
    65. Dragon's TeethDragon's Teeth
    66. Tidal
    67. RiptideFrigate
    68. Con turret
    69. Tidal
    70. Dragon's TeethDragon's Teeth ×2
    71. Con turret
    72. OppressorDestroyer
    73. UrchinUrchin
    74. Tidal
    75. Dragon's TeethDragon's Teeth
    76. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 12:34
    77. Dragon's TeethDragon's Teeth
    78. SlingshotSlingshot
    79. Dragon's TeethDragon's Teeth ×2
    80. Tidal
    81. Dragon's TeethDragon's Teeth
    82. Advanced Metal ExtractorT2 mex
    83. Dragon's TeethDragon's Teeth ×2
    84. Tidal
    85. Dragon's TeethDragon's Teeth ×3
    86. Con turret
    87. OppressorDestroyer
    88. Dragon's TeethDragon's Teeth ×3
    89. Advanced Metal ExtractorT2 mex
    90. Dragon's TeethDragon's Teeth ×6
    91. RiptideFrigate
    92. Dragon's TeethDragon's Teeth ×2
    93. RiptideFrigate
    94. Converter
    95. Dragon's TeethDragon's Teeth
    96. Converter
    97. RiptideFrigate
    98. Converter
    99. Dragon's TeethDragon's Teeth
    100. Converter
    101. Dragon's TeethDragon's Teeth
    102. Converter
    103. RiptideFrigate
    104. Converter
    105. Dragon's TeethDragon's Teeth
    106. Converter
    107. Dragon's TeethDragon's Teeth
    108. Converter ×2
    109. Construction ShipCon ship
    110. Dragon's TeethDragon's Teeth
    111. Converter
    112. Dragon's TeethDragon's Teeth
    113. Converter
    114. RiptideFrigate
    115. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    116. Converter
    117. RiptideFrigate
    118. Converter ×3
    119. Naval Construction Turret
    120. RiptideFrigate
    121. Converter ×3
    122. RiptideFrigate
    123. Converter ×2
    124. RiptideFrigate
    125. Converter
    126. RiptideFrigate ×2
    127. Advanced ShipyardAdvanced Shipyarddone 14:29
    128. RiptideFrigate
    129. Con turret
    130. Advanced Fusion ReactorAdvanced Fusion Reactornot finished by 15:00
    131. Con turret
    132. Advanced Construction SubAdvanced Construction Sub
    133. RiptideFrigate
    134. Con turret
    135. Death CavalryDeath Cavalry
    136. Con turret ×2
    137. PathfinderPathfinder
    138. Death CavalryDeath Cavalry
    139. Con turret
    140. PathfinderPathfinder
    141. Con turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is iLike2Eco's (37 OS, 13/09/2026); 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

1030 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156900
4:002908051
5:00410813052
6:005466440241
7:006953931544
8:0086221570891
9:001050924401347
10:001263736252063
11:001525249082938
12:001816664023803
13:002150973914465
14:002507986275423
15:002882297766336
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

iLike2Eco

36.8 OS · 13/09/2026

Open source match ↗

10 received units · includes a constructor
105 metal received · 101024 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=1024
Shipyard3:17Middle 50%: 3:03–3:33 · n=1025
Orca4:19Middle 50%: 3:53–5:00 · n=705
Riptide4:35Middle 50%: 4:08–5:20 · n=1001
Oppressor5:51Middle 50%: 5:09–6:33 · n=934
Geothermal Powerplant7:58Middle 50%: 7:00–8:59 · n=621
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=886

Played most by

sirniho119games of this buildOptimusprimenutt81games of this buildSHOGVN78games of this buildPRO_Rerory46games of this buildhihimik41games of this build