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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 · 3 steps
    1. Mex ×3
    2. Wind ×3
    3. Bot LabBot Labdone 1:04 · 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. TrasherTrasher
    6. Wind ×2for Air
    7. Construction BotCon bot ×5
    8. GruntGrunt
    9. Construction BotCon bot
    10. Mex
    11. ShipyardShipyarddone 3:08 · 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 · 13 steps
    1. OrcaSubmarinedone 3:29 · typical 4:19
    2. Mex
    3. Construction ShipCon ship
    4. Mex
    5. RiptideFrigatedone 3:59 · typical 4:35
    6. Mex
    7. OppressorDestroyerdone 5:10 · typical 5:52
    8. Converter
    9. Radar TowerRadar Tower
    10. Mex
    11. Converter
    12. Geothermal PowerplantGeodone 5:37 · typical 7:59
    13. Converter
  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 · 138 steps
    1. HerringMissile corvette
    2. Death CavalryDeath Cavalry
    3. RiptideFrigate
    4. ThistleThistle
    5. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    6. RiptideFrigate
    7. GuardGuard
    8. Con turret
    9. Mex
    10. Converter
    11. OppressorDestroyer
    12. Converter ×4
    13. HerringMissile corvette
    14. Death CavalryDeath Cavalry
    15. GuardGuard
    16. Advanced Metal ExtractorT2 mexdone 8:31 · typical 9:22
    17. Mexfor Beach sea
    18. RiptideFrigate ×2
    19. Con turret
    20. GuardGuard
    21. Mexfor Beach sea
    22. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    23. ThistleThistle
    24. GuardGuard
    25. Wind
    26. GuardGuard
    27. Advanced Metal ExtractorT2 mex
    28. OppressorDestroyer
    29. Wind ×3
    30. GuardGuard
    31. Wind
    32. HerringMissile corvette
    33. Wind
    34. Advanced Metal ExtractorT2 mex
    35. Death CavalryDeath Cavalry
    36. Wind ×2
    37. GuardGuard
    38. RiptideFrigate
    39. Wind
    40. RiptideFrigate
    41. Wind
    42. Construction ShipCon ship ×2
    43. GuardGuard
    44. Advanced Metal ExtractorT2 mex
    45. Naval Construction Turret ×2
    46. Mex
    47. Con turret
    48. Tidal
    49. Wind
    50. Tidal
    51. Wind
    52. Tidal
    53. Wind
    54. Dragon's TeethDragon's Teeth
    55. Tidal
    56. Wind
    57. Metal storage
    58. Dragon's TeethDragon's Teeth
    59. Tidal
    60. Dragon's TeethDragon's Teeth
    61. Tidal ×2
    62. Wind
    63. Dragon's TeethDragon's Teeth
    64. Mex
    65. Tidal
    66. Dragon's TeethDragon's Teeth
    67. Tidal
    68. Wind
    69. Dragon's TeethDragon's Teeth ×2
    70. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    71. Tidal
    72. Dragon's TeethDragon's Teeth
    73. Wind
    74. Advanced Metal ExtractorT2 mex
    75. Wind
    76. Amphibious ComplexAmphibious Complexdone 11:49
    77. Naval Construction Turret
    78. Dragon's TeethDragon's Teeth
    79. Tidal
    80. Naval Construction Turret
    81. Dragon's TeethDragon's Teeth
    82. Wind
    83. Dragon's TeethDragon's Teeth ×2
    84. Tidal
    85. Dragon's TeethDragon's Teeth
    86. Wind
    87. Tidal
    88. Dragon's TeethDragon's Teeth
    89. Tidal
    90. Wind
    91. Dragon's TeethDragon's Teeth
    92. Wind
    93. Dragon's TeethDragon's Teeth ×2
    94. Naval Energy Storage
    95. Wind
    96. Dragon's TeethDragon's Teeth
    97. Wind
    98. Advanced Metal ExtractorT2 mex
    99. Naval Energy Storage
    100. Dragon's TeethDragon's Teeth
    101. SalamanderSalamander
    102. Wind
    103. Dragon's TeethDragon's Teeth
    104. Wind
    105. Dragon's TeethDragon's Teeth
    106. SalamanderSalamander
    107. Wind
    108. Dragon's TeethDragon's Teeth
    109. Wind
    110. Dragon's TeethDragon's Teeth
    111. SalamanderSalamander
    112. Wind
    113. Dragon's TeethDragon's Teeth
    114. SlingshotSlingshot
    115. Dragon's TeethDragon's Teeth
    116. Wind
    117. SalamanderSalamander
    118. Wind
    119. SalamanderSalamander
    120. Mex
    121. Wind
    122. SalamanderSalamander ×5
    123. Metal storage
    124. Naval Construction Turret
    125. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    126. Naval Construction Turret
    127. Wind
    128. Naval Construction Turret ×2
    129. Wind ×3
    130. Dragon's TeethDragon's Teeth
    131. Wind ×2
    132. Twin GuardTwin Guard
    133. Wind ×3
    134. Advanced ShipyardAdvanced Shipyarddone 14:32
    135. Wind ×3
    136. BrimstoneAnti-swarm shipnot finished by 15:00
    137. Advanced Construction SubAdvanced Construction Sub
    138. PathfinderPathfinder

Counts are medians over the build's games: half of them build more, half fewer. The example game is tedsterr's (44 OS, 05/09/2026); 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

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

44.0 OS · 05/09/2026

Open source match ↗

3 received units · includes a constructor
421 metal received · 112182 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