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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 · 976 distinct matches · 100 players · 83% of Cortex Geo sea games · team won 52% of 1095 · 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 976 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 1:06–1:26

    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 ×2for Air
    3. Wind ×3
    4. Bot LabBot Labdone 1:16 · 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

    The example game in this phase · 11 steps
    1. Wind
    2. GraverobberGraverobber
    3. Wind
    4. GraverobberGraverobber
    5. Construction BotCon bot
    6. TrasherTrasher
    7. Construction BotCon bot ×4
    8. Mex
    9. GruntGrunt
    10. Construction BotCon bot
    11. ShipyardShipyarddone 3:14 · 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 (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 · 15 steps
    1. Mex
    2. OrcaSubmarinedone 3:34 · typical 4:19
    3. Mex
    4. Construction ShipCon ship
    5. ThistleThistle
    6. RiptideFrigatedone 3:58 · typical 4:35
    7. Mex
    8. OppressorDestroyerdone 5:13 · typical 5:52
    9. Mex
    10. Converter
    11. Radar TowerRadar Tower
    12. Mex
    13. Converter
    14. Mex
    15. Geothermal PowerplantGeodone 5:50 · typical 7:59
  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 (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 · 146 steps
    1. GuardGuard
    2. HerringMissile corvette
    3. Mex
    4. RiptideFrigate
    5. GuardGuard
    6. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    7. ThistleThistle
    8. Death CavalryDeath Cavalry
    9. GuardGuard ×2
    10. Con turret
    11. Converter ×2
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. Converter
    14. GuardGuard
    15. OppressorDestroyer
    16. Converter
    17. HerringMissile corvette
    18. Radar TowerRadar Tower
    19. RiptideFrigate
    20. Con turret
    21. Mex
    22. Death CavalryDeath Cavalry
    23. Wind
    24. OppressorDestroyer
    25. Wind ×2
    26. OppressorDestroyer
    27. Wind
    28. Mex
    29. Wind
    30. OppressorDestroyer
    31. Wind
    32. Mex
    33. Wind
    34. OppressorDestroyer
    35. Energy storage
    36. Wind
    37. Con turret
    38. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    39. Wind
    40. OppressorDestroyer
    41. Wind
    42. OppressorDestroyer
    43. Advanced Metal ExtractorT2 mexdone 10:09 · typical 9:22
    44. Con turret
    45. Construction ShipCon ship
    46. Con turret
    47. SlingshotSlingshot
    48. Wind
    49. Advanced Metal ExtractorT2 mex
    50. Wind
    51. Construction ShipCon ship
    52. Naval Construction Turret
    53. SlingshotSlingshot
    54. Energy storage
    55. Wind
    56. Tidal
    57. Advanced Metal ExtractorT2 mex
    58. Wind
    59. Construction ShipCon ship
    60. Tidal
    61. Wind
    62. Tidal
    63. Wind ×2
    64. Tidal ×2
    65. Construction ShipCon ship
    66. Energy storage
    67. Tidal
    68. Wind
    69. Tidal
    70. Wind
    71. Construction ShipCon ship
    72. Wind
    73. Tidal ×2
    74. Wind
    75. Tidal
    76. Construction ShipCon ship
    77. Wind
    78. Tidal
    79. Wind
    80. Advanced Metal ExtractorT2 mex
    81. Tidal
    82. Wind ×2
    83. Tidal ×2
    84. Wind
    85. Tidal ×2
    86. Wind
    87. Tidal
    88. Wind
    89. Tidal
    90. Wind ×3
    91. Tidal
    92. Wind ×3
    93. Tidal
    94. Wind ×2
    95. Tidal
    96. Wind
    97. Advanced Metal ExtractorT2 mex
    98. Tidal
    99. Wind ×2
    100. Tidal
    101. Wind
    102. Tidal
    103. Wind ×2
    104. Tidal
    105. Advanced Metal ExtractorT2 mex
    106. Wind
    107. Tidal
    108. Wind
    109. Tidal
    110. Wind ×2
    111. Amphibious ComplexAmphibious Complexdone 13:53
    112. Naval Construction Turret
    113. Tidal
    114. Naval Construction Turret
    115. Wind
    116. Naval Construction Turret ×2
    117. Wind
    118. Naval Construction Turret
    119. Wind
    120. Naval Construction Turret
    121. SalamanderSalamander
    122. Wind
    123. SalamanderSalamander
    124. Wind
    125. Naval Energy Converter
    126. SalamanderSalamander
    127. Wind
    128. SalamanderSalamander
    129. Wind
    130. Naval Energy Converter
    131. SalamanderSalamander
    132. Wind
    133. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    134. SalamanderSalamander
    135. Wind ×2
    136. Naval Energy Converter
    137. UrchinUrchin
    138. SalamanderSalamander
    139. Wind ×3
    140. SalamanderSalamander
    141. Naval Energy Converter
    142. Wind ×4
    143. SalamanderSalamander
    144. Wind
    145. Naval Energy Converter
    146. Wind ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is tedsterr's (43 OS, 16/08/2026); 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

1095 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002900051
5:00410813052
6:005463440241
7:006945930551
8:0086091570904
9:001049124521351
10:001261236252061
11:001521948812901
12:001812163983761
13:002141473934451
14:002501686485371
15:002879197536300
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

tedsterr

42.8 OS · 16/08/2026

Open source match ↗

11 received units · includes a constructor
247 metal received · 46567 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:26 · n=1084
Shipyard3:17Middle 50%: 3:02–3:33 · n=1089
Orca4:19Middle 50%: 3:54–5:00 · n=754
Riptide4:35Middle 50%: 4:08–5:20 · n=1063
Oppressor5:52Middle 50%: 5:08–6:35 · n=991
Geothermal Powerplant7:59Middle 50%: 7:01–9:00 · n=654
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=940

Played most by

sirniho122games of this buildSHOGVN92games of this buildOptimusprimenutt84games of this buildPRO_Rerory47games of this buildhihimik41games of this build