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Beach sea / Cortex / Economy first / OBSERVED BUILD

Standard beach sea

Cortex Beach sea build order · Supreme Isthmus

The role's usual play: com goes to sea to build a shipyard around 2 minutes, pumping frigates and destroyers to contest enemy sea entry or hold vision, with an advanced metal extractor around 10 minutes as the transition into the team's…

Usually shipyard first (94%)

#naval #eco · 935 distinct matches · 113 players · 83% of Cortex Beach sea games · team won 54% of 1009 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:57

  1. Grab mex and tidal, push com to sea to build shipyard.
  2. Finish shipyard and start pumping frigate and destroyer.
  3. Field first frigate to contest enemy sea entry or hold vision.
  4. Add destroyer to the mix as the fight for sea develops.
  5. Shift into advanced metal extractor as the economy transition.

Phase by phase

TYPICAL OF ITS 935 GAMES
  1. 1
  2. 2
  3. 3
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 Shipyard

    Economy
    • Metal Extractor3Mex
    • Wind Turbine2Windfor allies
    • Wind Turbine2Wind
    • Energy Storage1Energy storage
    Order
    1. ShipyardShipyard after 3 mex, 2 wind, 1 energy storagedone ~1:56, middle half 1:41–2:07

    Some games also: tidal (31%)

    By 1:40 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 6 steps
    1. Mex ×2
    2. Windfor Air
    3. Mex
    4. Windfor Air
    5. Wind
    6. ShipyardShipyarddone 1:28 · typical 1:56
  2. 2

    Shipyard to 5:00

    Economy
    • Metal Extractor5Mex
    • Tidal Generator2Tidal
    Builders
    • Construction Ship2 Con ship
    Army
    • Riptide2 Frigate
    • Herring1 Missile corvette
    • Oppressor1 Destroyer
    Other
    • Naval Radar / Sonar Tower1 Naval Radar / Sonar Tower

    Some games also: Urchin (46%) · wind (39%) · submarine (38%) · mex (36%) · gunboat (36%)

    By 5:00 in all: 8 mex · 3 wind · 2 tidal · 1 energy storage

    The example game in this phase · 22 steps
    1. Construction ShipCon ship ×2
    2. Wind
    3. HerringMissile corvette
    4. Mex
    5. OppressorDestroyerdone 3:21 · typical 5:12
    6. Wind ×3
    7. Mex
    8. Mex ×2
    9. Mex
    10. Mex
    11. HerringMissile corvette
    12. SentrySentry
    13. HerringMissile corvette ×3
    14. OppressorDestroyer
    15. Mex
    16. SentrySentry
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. Tidal ×2
    19. Naval Construction Turret
    20. HerringMissile corvette
    21. SentrySentry
    22. Tidal ×2
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine9Wind
    Builders
    • Construction Ship1 Con ship
    • Death Cavalry1 Death Cavalry
    Army
    • Urchin1 Urchin
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    • Herring2 Missile corvette
    Other
    • Naval Radar / Sonar Tower1 Naval Radar / Sonar Tower

    Some games also: Naval Construction Turret (49%) · Guard (47%) · Radar Tower (40%) · tidal (40%) · con turret (35%)

    By 10:00 in all: 9 mex · 11 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 133 steps
    1. HerringMissile corvette ×3
    2. Advanced Metal ExtractorT2 mexdone 6:40 · typical 9:58
    3. Radar TowerRadar Tower
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. Death CavalryDeath Cavalry
    6. HerringMissile corvette ×3
    7. JellyfishJellyfish
    8. Naval Construction Turret
    9. HerringMissile corvette
    10. Advanced Metal ExtractorT2 mex
    11. Construction ShipCon ship
    12. Tidal ×2
    13. Construction ShipCon ship
    14. Mex
    15. Tidal
    16. Advanced ShipyardAdvanced Shipyarddone 8:44
    17. Construction ShipCon ship
    18. Tidal
    19. Con turret
    20. Mex
    21. Construction ShipCon ship
    22. Tidal
    23. Construction ShipCon ship
    24. Tidal ×2
    25. Construction ShipCon ship
    26. Tidal
    27. Advanced Metal ExtractorT2 mex
    28. ShipyardEat Shipyardreclaimed for its metal
    29. BeholderBeholder
    30. Wind
    31. MessengerCruise missile shipdone 9:42
    32. BeholderBeholder
    33. Wind
    34. Bot LabBot Labdone 9:45
    35. Wind
    36. Con turret
    37. Wind
    38. Advanced Construction SubAdvanced Construction Sub
    39. Wind
    40. GruntGrunt
    41. Wind
    42. GruntGrunt
    43. Advanced Metal ExtractorT2 mex
    44. Wind ×2
    45. GruntGrunt ×2
    46. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 11:14
    47. GruntGrunt
    48. Wind
    49. GruntGrunt
    50. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    51. Wind
    52. GruntGrunt
    53. Con turret
    54. Wind
    55. GruntGrunt
    56. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    57. Wind
    58. GruntGrunt
    59. Tidal
    60. Wind
    61. Tidal ×2
    62. Bot LabEat Bot Labreclaimed for its metal
    63. Wind
    64. Con turret
    65. Tidal ×2
    66. PhantasmRadar jammer ship
    67. Wind
    68. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    69. Tidal ×2
    70. Wind
    71. Tidal
    72. Wind ×2
    73. DespotBattleshipdone 12:50
    74. Wind
    75. Tidal
    76. Wind
    77. Tidal
    78. Wind
    79. Tidal
    80. Con turret
    81. Wind
    82. Tidal
    83. Wind
    84. Tidal
    85. Wind
    86. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    87. Wind ×2
    88. Con turret
    89. Tidal
    90. Wind
    91. Advanced Metal ExtractorT2 mex
    92. Wind
    93. Advanced Metal ExtractorT2 mex
    94. Wind
    95. Tidal
    96. Con turret
    97. Wind
    98. Vehicle PlantVehicle Plantdone 13:00
    99. Tidal
    100. BuccaneerCruiserdone 13:26
    101. Tidal
    102. Con turret
    103. Tidal
    104. StoutStout
    105. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    106. Tidal
    107. StoutStout
    108. BuccaneerCruiser
    109. Arrow StormAnti-air shipdone 14:20
    110. StoutStout
    111. Tidal
    112. Wind
    113. StoutStout
    114. Wind
    115. BeholderBeholder
    116. StoutStout
    117. Tidal
    118. Wind
    119. BeholderBeholder
    120. Tidal
    121. StoutStout
    122. Wind
    123. Arrow StormAnti-air ship
    124. Bot LabBot Labnot finished by 15:00
    125. Fusion ReactorFusionnot finished by 15:00
    126. StoutStout
    127. Tidal
    128. Wind
    129. Black HydraBlack Hydranot finished by 15:00
    130. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    131. Naval Construction Turret
    132. StoutStout
    133. Bot LabBot Labnot finished by 15:00

Counts are medians over the build's games: half of them build more, half fewer. The example game is El_Turco's (38 OS, 08/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 78% of games

You get

  • Finch1 Finch from Airfirst at 1:59 · in 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:14 · in 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 67% of games
  • Construction Bot1 Con bot from Geofirst at 2:27 · in 70% of games
  • Hercules1 Light transport from Airfirst at 2:32 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:09 · 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

1009 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156900
4:002538051
5:003715197100
6:005041540261
7:0064861074590
8:00805618061014
9:00967627771581
10:001157039202310
11:001375549693051
12:001628260643825
13:001909071214611
14:002186582015711
15:002489893256582
WHAT THE NUMBERS SAY

Standard sea-first play for Beach sea, with the lowest team win rate of the roles shown at 54% and a big gap in metal destroyed vs lost by 15:00.

  • + Metal produced hits 24892 by 15:00, second highest overall shown.
  • − Enemy metal destroyed only 9261 by 15:00 against own losses of 6529, a tight margin for a sea role.
THE EXAMPLE YOU ARE READING

El_Turco

38.3 OS · 08/10/2026

Open source match ↗

9 received units · includes a constructor
486 metal received · 61767 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:41–2:07 · n=1007
Riptide3:49Middle 50%: 3:15–4:32 · n=988
Oppressor5:12Middle 50%: 4:22–6:07 · n=970
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=853

Played most by

EpicTyrannus99games of this buildDamsko68games of this buildKbot_my_Ahole64games of this buildWaboum64games of this buildPRO_HYDRA63games of this build