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

Counts are medians over the build's games: half of them build more, half fewer. The example game is fanboi's (34 OS, 12/10/2026); 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

fanboi

34.0 OS · 12/10/2026

Open source match ↗

11 received units · includes a constructor
523 metal received · 72060 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