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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 · 4 steps
    1. Mex ×3
    2. Wind
    3. Wind ×2for Air
    4. ShipyardShipyarddone 1:30 · 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 · 19 steps
    1. Windfor Air
    2. Construction ShipCon ship
    3. Tidal ×4
    4. HerringMissile corvette
    5. Tidal
    6. RiptideFrigate ×2done 2:32 · typical 3:49
    7. Wind
    8. Mex ×2
    9. RiptideFrigate
    10. Mex
    11. Mex ×2
    12. GuardGuard
    13. Construction ShipCon ship
    14. Mex
    15. Radar TowerRadar Tower
    16. Death CavalryDeath Cavalry
    17. Wind
    18. RiptideFrigate
    19. Wind
  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 · 123 steps
    1. HerringMissile corvette
    2. Con turret
    3. OrcaSubmarinedone 5:42
    4. RiptideFrigate
    5. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    6. OppressorDestroyerdone 6:51 · typical 5:12
    7. Wind ×8
    8. Mex
    9. Wind
    10. RiptideFrigate
    11. Wind ×3
    12. Death CavalryDeath Cavalry
    13. Wind
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Wind ×2
    16. RiptideFrigate
    17. Wind
    18. Naval Construction Turret
    19. Wind
    20. Construction ShipCon ship
    21. Wind ×2
    22. Construction ShipCon ship
    23. Wind ×2
    24. OppressorDestroyer
    25. Wind
    26. Naval Construction Turret
    27. Con turret
    28. ShipyardShipyarddone 9:20
    29. Construction ShipCon ship
    30. Naval Energy Converter
    31. Advanced Metal ExtractorT2 mexdone 9:52 · typical 9:58
    32. RiptideFrigate
    33. Death CavalryDeath Cavalry
    34. Wind
    35. ShipyardEat Shipyardreclaimed for its metal
    36. Naval Energy Converter
    37. OrcaSubmarine
    38. Naval Energy Converter
    39. Advanced Metal ExtractorT2 mex
    40. Wind
    41. Naval Energy Converter
    42. OrcaSubmarine
    43. Naval Energy Converter ×3
    44. RiptideFrigate
    45. Wind
    46. Naval Energy Converter
    47. Advanced Metal ExtractorT2 mex
    48. Wind
    49. Naval Energy Converter
    50. OppressorDestroyer
    51. HerringMissile corvette
    52. Naval Energy Converter
    53. OrcaSubmarine
    54. Wind
    55. Naval Energy Converter
    56. Wind
    57. Naval Energy Converter
    58. OrcaSubmarine
    59. Wind ×2
    60. Naval Energy Converter
    61. Wind
    62. RiptideFrigate
    63. Naval Energy Converter
    64. Wind ×2
    65. Naval Energy Converter
    66. Construction ShipCon ship
    67. Naval Construction Turret
    68. Wind ×2
    69. Naval Energy Converter
    70. Wind
    71. OppressorDestroyer
    72. Naval Metal Storage
    73. Naval Construction Turret
    74. Naval Energy Converter
    75. Advanced Metal ExtractorT2 mex
    76. Wind
    77. Naval Energy Converter
    78. Wind ×3
    79. OppressorDestroyer
    80. Wind ×2
    81. RiptideFrigate
    82. Wind ×2
    83. RiptideFrigate
    84. Death CavalryDeath Cavalry
    85. Wind
    86. RiptideFrigate
    87. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    88. Wind
    89. OppressorDestroyer
    90. HerringMissile corvette
    91. Wind
    92. HerringMissile corvette
    93. RiptideFrigate
    94. Construction ShipCon ship
    95. RiptideFrigate
    96. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    97. Wind
    98. HerringMissile corvette
    99. OrcaSubmarine
    100. Wind ×2
    101. OrcaSubmarine
    102. Wind
    103. RiptideFrigate
    104. Wind ×2
    105. OrcaSubmarine
    106. Wind ×2
    107. OrcaSubmarine
    108. Wind ×2
    109. RiptideFrigate
    110. Wind
    111. Death CavalryDeath Cavalry
    112. Wind ×2
    113. Death CavalryDeath Cavalry
    114. Wind ×2
    115. Death CavalryDeath Cavalry
    116. Wind
    117. RiptideFrigate
    118. Wind
    119. OppressorDestroyer
    120. Bot LabBot Labdone 14:58
    121. Wind
    122. Naval Construction Turret
    123. Advanced ShipyardAdvanced Shipyardnot finished by 15:00

Counts are medians over the build's games: half of them build more, half fewer. The example game is MrCoolPotato's (43 OS, 09/10/2026); 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

MrCoolPotato

43.3 OS · 09/10/2026

Open source match ↗

5 received units · includes a constructor
443 metal received · 3864 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
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas