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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 ×4for Beach sea
    3. Energy storagefor Beach sea
    4. Bot LabBot Labdone 1:23 · 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 · 11 steps
    1. GraverobberGraverobber ×2for Beach sea
    2. Construction BotCon bot ×2for Beach sea
    3. Con turretfor Beach sea
    4. Construction BotCon botfor Beach sea
    5. GruntGruntfor Beach sea
    6. GraverobberGraverobber
    7. GruntGruntfor Beach sea
    8. Mex
    9. GruntGrunt ×2for Beach sea
    10. GruntGrunt
    11. ShipyardShipyarddone 3:53 · 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 · 18 steps
    1. GruntGruntfor Beach sea
    2. GuardGuard ×2for Beach sea
    3. GruntGruntfor Beach sea
    4. GuardGuardfor Beach sea
    5. GraverobberGraverobber
    6. Mex
    7. Construction ShipCon shipfor Beach sea
    8. SupporterGunboatfor Beach sea
    9. Radar TowerRadar Towerfor Beach sea
    10. Mex
    11. SupporterGunboatfor Beach sea
    12. RiptideFrigatefor Beach seadone 4:33 · typical 4:36
    13. Mex
    14. RiptideFrigatefor Beach sea
    15. Windfor Beach sea
    16. Mex
    17. Wind
    18. RiptideFrigatefor Beach sea
  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 · 135 steps
    1. GuardGuardfor Beach sea
    2. HerringMissile corvette
    3. Death CavalryDeath Cavalry
    4. SupporterGunboat ×3for Beach sea
    5. GuardGuardfor Beach sea
    6. SupporterGunboat ×4for Beach sea
    7. Mex
    8. SupporterGunboatfor Beach sea
    9. GuardGuardfor Beach sea
    10. SupporterGunboat
    11. RiptideFrigatefor Beach sea
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Towerfor Beach sea
    13. GuardGuardfor Beach sea
    14. RiptideFrigatefor Beach sea
    15. Wind ×2for Beach sea
    16. RiptideFrigate
    17. OppressorDestroyerdone 7:21 · typical 5:51
    18. Windfor Beach sea
    19. Mexfor Beach sea
    20. Wind ×3for Beach sea
    21. Advanced Metal ExtractorT2 mexfor Beach seadone 8:18 · typical 9:21
    22. Mexfor Beach sea
    23. Windfor Beach sea
    24. HerringMissile corvettefor Beach sea
    25. Windfor Beach sea
    26. Death CavalryDeath Cavalry
    27. Windfor Beach sea
    28. Construction ShipCon shipfor Beach sea
    29. Mexfor Beach sea
    30. Windfor Beach sea
    31. Construction ShipCon shipfor Beach sea
    32. Con turretfor Beach sea
    33. Windfor Beach sea
    34. Naval Construction Turretfor Beach sea
    35. Naval Radar / Sonar TowerNaval Radar / Sonar Towerfor Beach sea
    36. Advanced Metal ExtractorT2 mexfor Beach sea
    37. Windfor Beach sea
    38. Mex ×2for Beach sea
    39. Naval Energy Converter ×2for Beach sea
    40. GuardGuardfor Beach sea
    41. Windfor Beach sea
    42. Naval Energy Converterfor Beach sea
    43. Wind ×2for Beach sea
    44. Radar TowerRadar Towerfor Beach sea
    45. Naval Energy Converterfor Beach sea
    46. Advanced Metal ExtractorT2 mexfor Beach sea
    47. Windfor Beach sea
    48. Naval Radar / Sonar TowerNaval Radar / Sonar Towerfor Beach sea
    49. Windfor Beach sea
    50. Naval Energy Converterfor Beach sea
    51. Wind ×2for Beach sea
    52. Naval Energy Converterfor Beach sea
    53. Windfor Beach sea
    54. Naval Energy Converterfor Beach sea
    55. Windfor Beach sea
    56. Naval Energy Converterfor Beach sea
    57. Windfor Beach sea
    58. Tidalfor Beach sea
    59. Windfor Beach sea
    60. UrchinUrchinfor Beach sea
    61. Windfor Beach sea
    62. Tidalfor Beach sea
    63. Geothermal PowerplantGeofor Beach seadone 10:53 · typical 7:58
    64. Windfor Beach sea
    65. Tidalfor Beach sea
    66. Windfor Beach sea
    67. Tidalfor Beach sea
    68. Windfor Beach sea
    69. Tidalfor Beach sea
    70. Naval Construction Turretfor Beach sea
    71. Advanced Metal ExtractorT2 mexfor Beach sea
    72. Wind ×2for Beach sea
    73. Tidalfor Beach sea
    74. Windfor Beach sea
    75. Tidal ×2for Beach sea
    76. Windfor Beach sea
    77. Tidalfor Beach sea
    78. Windfor Beach sea
    79. Tidal ×2for Beach sea
    80. Windfor Beach sea
    81. Tidal
    82. Advanced ShipyardAdvanced Shipyardfor Beach seadone 10:51
    83. Windfor Beach sea
    84. Naval Radar / Sonar TowerNaval Radar / Sonar Towerfor Beach sea
    85. Windfor Beach sea
    86. Advanced Construction SubAdvanced Construction Subfor Beach sea
    87. Advanced Metal ExtractorT2 mexfor Beach sea
    88. Windfor Beach sea
    89. Naval Construction Turretfor Beach sea
    90. Converterfor Beach sea
    91. Vehicle PlantVehicle Plantfor Beach seadone 11:17
    92. Naval Construction Turretfor Beach sea
    93. PathfinderPathfinder ×2for Beach sea
    94. BruteBrute
    95. Naval Advanced Metal ExtractorNaval Advanced Metal Extractorfor Beach seadone 12:03
    96. PhantasmRadar jammer shipfor Beach sea
    97. PounderPounder
    98. OasisOasisfor Beach sea
    99. BruteBrute
    100. Advanced Metal ExtractorT2 mexfor Beach sea
    101. Con turretfor Beach sea
    102. PounderPounder
    103. Con turret
    104. Naval Radar / Sonar TowerNaval Radar / Sonar Towerfor Beach sea
    105. Con turretfor Beach sea
    106. BruteBrute
    107. Naval Advanced Metal ExtractorNaval Advanced Metal Extractorfor Beach sea
    108. PounderPounder
    109. BruteBrute
    110. PounderPounder
    111. BruteBrute
    112. PounderPounder
    113. BruteBrutefor Beach sea
    114. PounderPounder
    115. Naval Radar / Sonar TowerNaval Radar / Sonar Towerfor Beach sea
    116. BruteBrutefor Beach sea
    117. PounderPounder
    118. BruteBrute
    119. Naval Advanced Metal ExtractorNaval Advanced Metal Extractorfor Beach sea
    120. DespotBattleshipfor Beach seadone 13:32
    121. PounderPounder
    122. Twin GuardTwin Guardfor Beach sea
    123. BruteBrute
    124. PounderPounder
    125. BruteBrutefor Beach sea
    126. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantfor Beach seanot finished by 15:00
    127. PounderPounderfor Beach sea
    128. BruteBrutefor Beach sea
    129. Naval Radar / Sonar TowerNaval Radar / Sonar Towerfor Beach sea
    130. PounderPounderfor Beach sea
    131. BruteBrutefor Beach sea
    132. PounderPounderfor Beach sea
    133. BruteBrutefor Beach sea
    134. PounderPounderfor Beach sea
    135. BruteBrutefor Beach sea

Counts are medians over the build's games: half of them build more, half fewer. The example game is [Cookie]Baby_Evis's (41 OS, 07/09/2026); 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

[Cookie]Baby_Evis

41.2 OS · 07/09/2026

Open source match ↗

6 received units · includes a constructor
4852 metal received · 123479 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