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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 (93%)

#naval #eco · 1603 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1807 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:56

  1. Open 3 mex, then send com to sea to build Shipyard by 1:56.
  2. Add tidal generators, wind and more mex to fund the shipyard.
  3. Pump Riptide first, then Oppressor to contest enemy sea entry.
  4. Get T2 constructor out to start scaling the naval economy.
  5. Transition into Advanced Metal Extractor as the economy phase begins.

Phase by phase

TYPICAL OF ITS 1603 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 Turbine3Windfor allies
    • Wind Turbine2Wind
    • Energy Storage1Energy storage
    Order
    1. ShipyardShipyard after 3 mex, 2 wind, 1 energy storagedone ~1:56, middle half 1:43–2:07

    Some games also: Guard (30%)

    By 1:39 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 9 steps
    1. Mex ×3
    2. Wind ×5
    3. Energy storage
    4. Wind ×3
    5. Hovercraft PlatformHovercraft Platformdone 2:09
    6. GoonGoon ×4
    7. Construction HovercraftCon hovercraft ×3
    8. Mex
    9. ShipyardShipyarddone 3:40 · 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%) · mex (38%) · wind (37%) · submarine (36%) · wind (36%)

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

    The example game in this phase · 15 steps
    1. Mex
    2. RiptideFrigatedone 4:04 · typical 3:50
    3. Naval Energy Converter ×2
    4. Mex
    5. RiptideFrigate
    6. Hovercraft PlatformEat Hovercraft Platformreclaimed for its metal
    7. Wind
    8. Naval Energy Converter
    9. Mex
    10. Naval Construction Turret
    11. Naval Energy Converter
    12. HerringMissile corvette
    13. Wind
    14. OppressorDestroyerdone 5:31 · typical 5:15
    15. Wind
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine8Wind
    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 (39%) · wind (34%)

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

    The example game in this phase · 128 steps
    1. Naval Construction Turret
    2. Wind
    3. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    4. Wind
    5. Death CavalryDeath Cavalry
    6. Wind
    7. Tidal
    8. Wind
    9. RiptideFrigate
    10. Tidal
    11. Naval Energy Converter
    12. Wind
    13. RiptideFrigate
    14. Tidal
    15. Wind
    16. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    17. Naval Energy Converter
    18. Tidal
    19. HerringMissile corvette
    20. Tidal
    21. Wind
    22. Naval Energy Converter
    23. Tidal
    24. HerringMissile corvette
    25. Tidal
    26. Wind
    27. HerringMissile corvette
    28. Naval Energy Converter
    29. Tidal
    30. OppressorDestroyer
    31. Tidal
    32. Wind
    33. Naval Energy Converter
    34. SupporterGunboat
    35. Tidal
    36. Wind
    37. Tidal
    38. SupporterGunboat
    39. Naval Energy Converter
    40. Tidal
    41. SupporterGunboat
    42. Wind
    43. Tidal
    44. SupporterGunboat
    45. Tidal
    46. SupporterGunboat
    47. Wind
    48. Naval Energy Converter
    49. Tidal
    50. Death CavalryDeath Cavalry
    51. Tidal
    52. Wind
    53. Naval Energy Converter
    54. RiptideFrigate
    55. Wind
    56. Advanced Metal ExtractorT2 mexdone 10:01 · typical 9:59
    57. Tidal
    58. RiptideFrigate
    59. Tidal
    60. HerringMissile corvette
    61. Tidal ×2
    62. OppressorDestroyer
    63. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    64. Tidal
    65. Advanced Metal ExtractorT2 mex
    66. Tidal ×2
    67. Mex
    68. Naval Energy Converter
    69. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    70. Tidal
    71. Death CavalryDeath Cavalry
    72. Naval Energy Converter
    73. Tidal
    74. Advanced Metal ExtractorT2 mex
    75. Tidal
    76. Naval Energy Converter
    77. Tidal
    78. Naval Energy Converter
    79. Tidal
    80. Naval Energy Converter
    81. Tidal
    82. RiptideFrigate
    83. Naval Energy Converter
    84. Tidal ×2
    85. Naval Energy Converter
    86. Tidal
    87. Naval Energy Converter
    88. Tidal
    89. HerringMissile corvette
    90. Tidal
    91. Naval Energy Converter
    92. OppressorDestroyer
    93. Tidal
    94. Naval Energy Converter
    95. Tidal
    96. Naval Energy Converter
    97. Advanced Metal ExtractorT2 mex
    98. Naval Construction Turret
    99. Death CavalryDeath Cavalry
    100. Naval Construction Turret ×2
    101. RiptideFrigate
    102. Naval Energy Converter
    103. HerringMissile corvette
    104. Naval Energy Converter
    105. OppressorDestroyer
    106. Naval Energy Converter ×2
    107. Death CavalryDeath Cavalry
    108. Naval Energy Converter
    109. RiptideFrigate
    110. Naval Energy Converter
    111. HerringMissile corvette
    112. OppressorDestroyer
    113. Naval Energy Converter
    114. Death CavalryDeath Cavalry
    115. Naval Energy Converter
    116. RiptideFrigate
    117. Naval Energy Converter
    118. HerringMissile corvette
    119. Naval Energy Converter
    120. OppressorDestroyer
    121. Naval Energy Converter
    122. Death CavalryDeath Cavalry
    123. Naval Energy Converter
    124. RiptideFrigate
    125. Naval Energy Converter
    126. HerringMissile corvette
    127. OppressorDestroyer
    128. 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 q[o_o]p's (34 OS, 12/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:45 · in 77% of games

You get

  • Finch1 Finch from Airfirst at 2:00 · in 80% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 65% of games
  • Construction Bot1 Con bot from Geofirst at 2:26 · in 70% of games
  • Hercules1 Light transport from Airfirst at 2:34 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:08 · 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

1807 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002539051
5:003717175101
6:005049484279
7:006492975591
8:00807316651000
9:00967926141532
10:001153637242320
11:001368447423102
12:001625058323861
13:001895168794645
14:002168079335680
15:002458688866524
WHAT THE NUMBERS SAY

Standard Beach sea play has the lowest team win rate of these builds and destroys far less enemy metal early than it loses eco time.

  • + Metal produced climbs to 24945 by 15:00, the highest of all six roles.
  • + Riptide and Oppressor together make 63% of army, a focused naval composition.
  • − Enemy metal destroyed is only 200 by 5:00, barely contesting early sea.
  • − T2 factory only reached in 35% of games, behind other roles' T2 timing.
THE EXAMPLE YOU ARE READING

q[o_o]p

34.1 OS · 12/09/2026

Open source match ↗

2 received units · includes a constructor
187 metal received · 94650 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:43–2:07 · n=1804
Riptide3:50Middle 50%: 3:12–4:34 · n=1761
Oppressor5:15Middle 50%: 4:29–6:07 · n=1740
Advanced Metal Extractor9:59Middle 50%: 9:17–10:54 · n=1528

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildfanboi64games of this buildSHOGVN64games of this build