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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

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 · 993 distinct matches · 101 players · 83% of Cortex Geo sea games · team won 52% of 1114 · 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 993 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 1:07–1:26

    Some games also: wind for allies (49%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 6 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind
    4. Windfor Air
    5. Energy storage
    6. Bot LabBot Labdone 1:29 · 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 · 6 steps
    1. Construction BotCon bot ×2
    2. TrasherTrasher
    3. Construction BotCon bot
    4. GraverobberGraverobber ×2
    5. GruntGrunt
    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 (40%)

    By 5:00 in all: 8 mex · 6 wind · 1 energy storage · 1 con turret

    The example game in this phase · 19 steps
    1. GraverobberGraverobber
    2. Mex
    3. Construction ShipCon ship
    4. SupporterGunboat
    5. Mex
    6. SupporterGunboat ×2
    7. OrcaSubmarinedone 4:07 · typical 4:19
    8. Mex ×2
    9. ThistleThistle
    10. Mex
    11. RiptideFrigatedone 4:28 · typical 4:35
    12. Radar TowerRadar Tower
    13. Mex
    14. RiptideFrigate
    15. Construction ShipCon ship
    16. RiptideFrigate
    17. Mex
    18. Wind
    19. RiptideFrigate
  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
    • Guard1 Guard
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (47%) · Thistle (40%) · 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 · 154 steps
    1. RiptideFrigate
    2. Mex
    3. Wind ×2
    4. RiptideFrigate
    5. Naval Construction Turret
    6. Wind
    7. RiptideFrigate
    8. Geothermal PowerplantGeodone 7:35 · typical 8:00
    9. Wind
    10. RiptideFrigate
    11. Wind
    12. Naval Construction Turret
    13. Wind ×2
    14. RiptideFrigate ×2
    15. Con turret
    16. Wind
    17. Con turret
    18. RiptideFrigate
    19. Construction ShipCon ship
    20. RiptideFrigate
    21. Con turret
    22. Mex
    23. RiptideFrigate
    24. Con turret
    25. Advanced Metal ExtractorT2 mexdone 9:24 · typical 9:21
    26. RiptideFrigate
    27. Wind
    28. Converter ×3
    29. Wind
    30. Converter
    31. OppressorDestroyerdone 10:08 · typical 5:52
    32. Converter
    33. Advanced Metal ExtractorT2 mex
    34. Converter
    35. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    36. Converter
    37. Wind ×2
    38. Advanced Metal ExtractorT2 mex
    39. Wind
    40. RiptideFrigate
    41. Wind
    42. Con turret
    43. Wind
    44. HerringMissile corvette
    45. Advanced Metal ExtractorT2 mex
    46. Wind
    47. RiptideFrigate
    48. Construction ShipCon ship
    49. Wind ×3
    50. Advanced ShipyardAdvanced Shipyarddone 12:13
    51. Wind
    52. Con turret
    53. Dragon's TeethDragon's Teeth ×2
    54. Wind
    55. Dragon's TeethDragon's Teeth ×2
    56. Wind
    57. Dragon's TeethDragon's Teeth
    58. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 12:29
    59. Dragon's TeethDragon's Teeth ×2
    60. Wind
    61. Dragon's TeethDragon's Teeth
    62. Wind
    63. Construction ShipCon ship
    64. Dragon's TeethDragon's Teeth
    65. Naval Construction Turret
    66. Dragon's TeethDragon's Teeth
    67. Wind
    68. Dragon's TeethDragon's Teeth ×2
    69. Advanced Metal ExtractorT2 mex
    70. Construction ShipCon ship
    71. Dragon's TeethDragon's Teeth
    72. Mex
    73. Dragon's TeethDragon's Teeth
    74. Advanced Construction SubAdvanced Construction Sub
    75. Dragon's TeethDragon's Teeth
    76. Con turret
    77. Dragon's TeethDragon's Teeth ×3
    78. Converter
    79. Dragon's TeethDragon's Teeth
    80. Converter
    81. Mex
    82. Converter
    83. Dragon's TeethDragon's Teeth
    84. Con turret
    85. Converter
    86. PathfinderPathfinder
    87. Dragon's TeethDragon's Teeth
    88. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    89. Converter ×2
    90. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:10
    91. Dragon's TeethDragon's Teeth
    92. PathfinderPathfinder
    93. Energy storage
    94. Con turret
    95. Converter
    96. Dragon's TeethDragon's Teeth
    97. Converter
    98. Advanced Metal ExtractorT2 mex
    99. Dragon's TeethDragon's Teeth
    100. Con turret
    101. PathfinderPathfinder
    102. Converter
    103. Dragon's TeethDragon's Teeth
    104. Converter
    105. Energy storage
    106. Dragon's TeethDragon's Teeth
    107. Mex
    108. PathfinderPathfinder
    109. Converter
    110. Advanced Fusion ReactorAdvanced Fusion Reactornot finished by 15:00
    111. Dragon's TeethDragon's Teeth
    112. PathfinderPathfinder
    113. Converter
    114. Dragon's TeethDragon's Teeth
    115. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    116. Converter
    117. Advanced Construction SubAdvanced Construction Sub
    118. Dragon's TeethDragon's Teeth
    119. Con turret
    120. Converter
    121. Dragon's TeethDragon's Teeth
    122. Naval Construction Turret
    123. Dragon's TeethDragon's Teeth
    124. Converter
    125. Dragon's TeethDragon's Teeth
    126. Converter
    127. Dragon's TeethDragon's Teeth
    128. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    129. Converter
    130. Dragon's TeethDragon's Teeth
    131. Converter
    132. Dragon's TeethDragon's Teeth
    133. Converter
    134. Dragon's TeethDragon's Teeth
    135. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    136. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    137. Dragon's TeethDragon's Teeth
    138. Converter
    139. Dragon's TeethDragon's Teeth ×2
    140. Naval Construction Turret
    141. Dragon's TeethDragon's Teeth ×2
    142. SlingshotSlingshot
    143. Dragon's TeethDragon's Teeth
    144. Advanced Metal ExtractorT2 mex
    145. Naval Construction Turret
    146. Dragon's TeethDragon's Teeth ×3
    147. Con turret
    148. Seaplane PlatformSeaplane Platformdone 14:59
    149. SlingshotSlingshot
    150. Dragon's TeethDragon's Teeth
    151. Advanced Metal ExtractorT2 mex
    152. Con turret
    153. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    154. Con turret ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is iLike2Eco's (36 OS, 02/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 71% 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 7:43 · 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

1114 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002899051
5:00410913552
6:005461441242
7:006946931551
8:0086181570906
9:001049724501367
10:001261036252062
11:001521848702893
12:001810063303773
13:002136173614451
14:002499586015363
15:002874196886321
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

35.6 OS · 02/10/2026

Open source match ↗

6 received units · includes a constructor
991 metal received · 28478 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:07–1:26 · n=1103
Shipyard3:17Middle 50%: 3:02–3:33 · n=1108
Orca4:19Middle 50%: 3:54–5:00 · n=769
Riptide4:35Middle 50%: 4:07–5:20 · n=1081
Oppressor5:52Middle 50%: 5:08–6:36 · n=1009
Geothermal Powerplant8:00Middle 50%: 7:01–9:02 · n=664
Advanced Metal Extractor9:21Middle 50%: 8:45–10:10 · n=955

Played most by

sirniho123games of this buildSHOGVN94games of this buildOptimusprimenutt84games of this buildPRO_Rerory48games of this buildhihimik41games of this build