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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 · 12 steps
    1. Mex ×3
    2. Wind ×5
    3. Energy storage
    4. Wind
    5. Hovercraft PlatformHovercraft Platformdone 2:09
    6. Wind ×2
    7. GoonGoon ×4
    8. Construction HovercraftCon hovercraft ×3
    9. Mex
    10. Naval Energy Converter ×2
    11. Mex
    12. ShipyardShipyarddone 4:04 · 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 · 10 steps
    1. Mex
    2. RiptideFrigatedone 4:29 · typical 3:50
    3. Hovercraft PlatformEat Hovercraft Platformreclaimed for its metal
    4. Wind
    5. Mex
    6. RiptideFrigate
    7. Wind
    8. HerringMissile corvette
    9. OppressorDestroyerdone 5:41 · typical 5:15
    10. 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 · 143 steps
    1. Naval Construction Turret
    2. Wind
    3. Tidal
    4. Wind
    5. Naval Construction Turret
    6. OrcaSubmarinedone 6:27
    7. Tidal
    8. Wind
    9. Tidal
    10. Wind
    11. Tidal
    12. Wind
    13. Naval Energy Converter
    14. SupporterGunboat
    15. Tidal
    16. Naval Energy Converter
    17. Tidal
    18. Wind
    19. SupporterGunboat
    20. Tidal
    21. Naval Energy Converter
    22. SupporterGunboat
    23. Tidal
    24. Naval Energy Converter
    25. Wind
    26. SupporterGunboat
    27. Tidal
    28. Naval Energy Converter
    29. SupporterGunboat
    30. Wind
    31. Naval Energy Converter
    32. Tidal
    33. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    34. Tidal
    35. Death CavalryDeath Cavalry
    36. Wind
    37. Tidal ×2
    38. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    39. Wind
    40. Tidal
    41. RiptideFrigate
    42. Tidal
    43. Wind
    44. Mex
    45. Tidal ×2
    46. Wind
    47. Tidal
    48. RiptideFrigate
    49. Naval Energy Converter
    50. Wind
    51. Tidal
    52. Advanced Metal ExtractorT2 mexdone 9:57 · typical 9:59
    53. HerringMissile corvette
    54. Wind
    55. Naval Energy Converter
    56. Tidal
    57. OrcaSubmarine
    58. Tidal
    59. Naval Energy Converter
    60. Tidal
    61. Naval Energy Converter
    62. Tidal
    63. Naval Energy Converter
    64. Tidal
    65. Radar TowerRadar Tower
    66. Tidal
    67. Naval Energy Converter
    68. Tidal
    69. Mex
    70. Naval Energy Converter
    71. Advanced Metal ExtractorT2 mex
    72. Tidal
    73. Naval Energy Converter
    74. Tidal
    75. Naval Energy Converter
    76. Tidal
    77. Naval Energy Converter
    78. Tidal
    79. Mex
    80. Naval Energy Converter
    81. Tidal
    82. Naval Energy Converter
    83. Tidal
    84. Naval Energy Converter
    85. Tidal
    86. Naval Construction Turret
    87. Tidal
    88. Naval Construction Turret ×3
    89. Advanced Metal ExtractorT2 mex
    90. GuardGuard
    91. Seaplane PlatformSeaplane Platformdone 11:37
    92. GuardGuard
    93. Naval Energy Converter
    94. GuardGuard
    95. Naval Energy Converter ×2
    96. CutlassSeaplane gunship
    97. Naval Energy Converter
    98. CutlassSeaplane gunship
    99. GuardGuard
    100. Naval Energy Converter
    101. CutlassSeaplane gunship
    102. Tidal ×2
    103. Naval Energy Converter
    104. Tidal
    105. CutlassSeaplane gunship
    106. Tidal ×2
    107. CutlassSeaplane gunship
    108. Tidal ×2
    109. CutlassSeaplane gunship
    110. Tidal
    111. CutlassSeaplane gunship
    112. Naval Construction Turret ×2
    113. CutlassSeaplane gunship ×2
    114. Naval Construction Turret
    115. CutlassSeaplane gunship
    116. Tidal
    117. CutlassSeaplane gunship
    118. Tidal
    119. CutlassSeaplane gunship
    120. Tidal
    121. CutlassSeaplane gunship
    122. Advanced ShipyardAdvanced Shipyarddone 14:10
    123. Tidal
    124. CutlassSeaplane gunship
    125. Naval Construction Turret ×2
    126. CutlassSeaplane gunship
    127. Naval Construction Turret ×2
    128. CutlassSeaplane gunship
    129. Tidal
    130. CutlassSeaplane gunship ×2
    131. Tidal
    132. CutlassSeaplane gunship
    133. BatSeaplane fighter
    134. Tidal
    135. BatSeaplane fighter
    136. Advanced Construction SubAdvanced Construction Sub
    137. Tidal
    138. BatSeaplane fighter
    139. Construction SeaplaneConstruction Seaplane
    140. Tidal
    141. Advanced Construction SubAdvanced Construction Sub
    142. BatSeaplane fighter
    143. Tidal

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, 13/09/2026); 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

34.2 OS · 13/09/2026

Open source match ↗

3 received units · includes a constructor
327 metal received · 51739 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