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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 · 1591 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1795 · 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 1591 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 · 5 steps
    1. Mex ×3
    2. GuardGuard
    3. Wind ×2for Air
    4. Tidal ×3
    5. ShipyardShipyarddone 2:01 · 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 · 19 steps
    1. Construction ShipCon ship ×2
    2. HerringMissile corvette
    3. Mex ×2
    4. HerringMissile corvette
    5. Mex
    6. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    7. OrcaSubmarinedone 4:01
    8. Mex
    9. Con turret
    10. Wind
    11. RiptideFrigatedone 4:16 · typical 3:50
    12. Wind
    13. Mex
    14. RiptideFrigate
    15. Wind
    16. Mex
    17. Wind
    18. OppressorDestroyerdone 5:29 · typical 5:14
    19. 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%) · tidal (39%) · Radar Tower (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 · 115 steps
    1. Radar TowerRadar Tower
    2. Wind
    3. Death CavalryDeath Cavalry
    4. Wind
    5. HerringMissile corvette
    6. Wind
    7. RiptideFrigate
    8. Wind
    9. RiptideFrigate
    10. Wind
    11. GuardGuard
    12. UrchinUrchin
    13. Converter
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. OppressorDestroyer ×2
    16. JellyfishJellyfish
    17. ShipyardEat Shipyardreclaimed for its metal
    18. Metal storage
    19. Naval Construction Turret
    20. Energy storage
    21. Tidal
    22. Con turret
    23. Tidal
    24. Advanced Metal ExtractorT2 mexdone 9:21 · typical 9:58
    25. Tidal ×2
    26. Metal storage
    27. Tidal ×3
    28. Advanced Metal ExtractorT2 mex ×2
    29. Con turret
    30. Tidal
    31. Advanced Metal ExtractorT2 mex
    32. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    33. ShipyardShipyarddone 10:30
    34. Wind ×4
    35. RiptideFrigate
    36. Wind
    37. Mex
    38. Wind
    39. Con turret
    40. RiptideFrigate
    41. Wind ×3
    42. OppressorDestroyer
    43. Wind
    44. Advanced Metal ExtractorT2 mex
    45. Wind
    46. Con turret
    47. Wind
    48. HerringMissile corvette
    49. Wind
    50. Con turret
    51. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    52. RiptideFrigate
    53. Wind ×2
    54. RiptideFrigate
    55. Wind
    56. OppressorDestroyer
    57. Wind ×2
    58. HerringMissile corvette
    59. Wind
    60. RiptideFrigate
    61. Wind ×2
    62. RiptideFrigate
    63. Wind
    64. Advanced Metal ExtractorT2 mex
    65. Wind
    66. Death CavalryDeath Cavalry
    67. Wind
    68. OppressorDestroyer
    69. Wind
    70. JellyfishJellyfish
    71. Wind ×3
    72. HerringMissile corvette
    73. Wind ×2
    74. RiptideFrigate
    75. Wind
    76. Construction ShipCon ship
    77. RiptideFrigate
    78. Wind
    79. Converter
    80. Death CavalryDeath Cavalry
    81. Wind
    82. Converter
    83. Wind
    84. Construction ShipCon ship
    85. Converter
    86. OppressorDestroyer
    87. Converter
    88. Wind
    89. Mex
    90. Wind
    91. ShipyardEat Shipyardreclaimed for its metal
    92. Converter
    93. Wind
    94. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    95. Advanced ShipyardAdvanced Shipyarddone 14:42
    96. Converter
    97. Naval Construction Turret
    98. Wind ×2
    99. Fortification WallFortification Wall
    100. Wind
    101. Fortification WallFortification Wall
    102. Wind
    103. Fortification WallFortification Wall
    104. Naval Construction Turret
    105. Wind
    106. Fortification WallFortification Wall
    107. Naval Construction Turret
    108. PhantasmRadar jammer ship
    109. Fortification WallFortification Wall
    110. Wind
    111. Fortification WallFortification Wall
    112. Wind
    113. DespotBattleshipnot finished by 15:00
    114. Pit BullPit Bull
    115. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is PlatinumBlonde's (59 OS, 02/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:46 · 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 64% 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

1795 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003717176101
6:005049487280
7:006492975592
8:00807016651001
9:00967926141532
10:001153637242325
11:001368547443105
12:001625058553871
13:001895168784629
14:002167379245680
15:002456588566501
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

PlatinumBlonde

59.4 OS · 02/10/2026

Open source match ↗

12 received units · includes a constructor
361 metal received · 56931 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=1792
Riptide3:50Middle 50%: 3:12–4:34 · n=1749
Oppressor5:14Middle 50%: 4:29–6:06 · n=1728
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=1519

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildfanboi63games of this build