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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 · 1589 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1793 · 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 1589 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 · 3 steps
    1. Mex ×3
    2. Wind ×3for Air
    3. ShipyardShipyarddone 1:35 · 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 · 20 steps
    1. Construction ShipCon ship
    2. Tidal ×2
    3. HerringMissile corvette
    4. Tidal
    5. Mex
    6. HerringMissile corvette
    7. Converter
    8. Construction ShipCon ship
    9. Mex ×4
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. Converter
    12. Con turret
    13. Mex
    14. Tidal ×5
    15. RiptideFrigatedone 4:58 · typical 3:50
    16. Wind
    17. Mex
    18. Wind ×3
    19. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    20. RiptideFrigate
  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 · 112 steps
    1. Wind ×2
    2. RiptideFrigate
    3. Wind ×3
    4. HerringMissile corvette
    5. Wind ×2
    6. Mex
    7. OppressorDestroyerdone 6:27 · typical 5:15
    8. Wind ×2
    9. Mex
    10. Wind ×2
    11. BeholderBeholder
    12. Death CavalryDeath Cavalry
    13. Wind ×3
    14. BeholderBeholder
    15. Mex
    16. Wind
    17. RiptideFrigate
    18. HerringMissile corvette
    19. Wind
    20. OppressorDestroyer
    21. Mex
    22. BeholderBeholder
    23. Converter ×2
    24. BeholderBeholder
    25. Radar TowerRadar Tower
    26. Converter
    27. BeholderBeholder
    28. Construction ShipCon ship
    29. Converter
    30. Death CavalryDeath Cavalry
    31. BeholderBeholder
    32. Advanced Metal ExtractorT2 mexdone 8:57 · typical 9:58
    33. HerringMissile corvette ×2
    34. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    35. HerringMissile corvette
    36. BeholderBeholder
    37. OppressorDestroyer
    38. BeholderBeholder
    39. Advanced Metal ExtractorT2 mex
    40. Construction ShipCon ship
    41. Death CavalryDeath Cavalry
    42. Advanced Metal ExtractorT2 mex
    43. Dragon's MawDragon's Maw
    44. HerringMissile corvette
    45. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    46. Tidal
    47. OppressorDestroyer
    48. Tidal ×4
    49. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    50. Tidal
    51. Construction ShipCon ship
    52. Tidal
    53. Advanced Metal ExtractorT2 mex
    54. Death CavalryDeath Cavalry
    55. Tidal ×3
    56. HerringMissile corvette
    57. OppressorDestroyer
    58. Construction ShipCon ship
    59. Tidal
    60. Naval Construction Turret
    61. Construction ShipCon ship
    62. Tidal
    63. Naval Metal Storage
    64. Tidal
    65. Naval Construction Turret ×2
    66. Advanced ShipyardAdvanced Shipyarddone 12:51
    67. Naval Construction Turret
    68. Fusion ReactorFusiondone 14:35
    69. Con turret
    70. BeholderBeholder
    71. Advanced Construction SubAdvanced Construction Sub
    72. Tidal
    73. Radar TowerRadar Tower
    74. Con turret
    75. Tidal
    76. PathfinderPathfinder
    77. Tidal
    78. Con turret
    79. PathfinderPathfinder
    80. Tidal
    81. PathfinderPathfinder
    82. Tidal
    83. PathfinderPathfinder
    84. Tidal
    85. PathfinderPathfinder
    86. Tidal ×2
    87. UrchinUrchin
    88. MessengerCruise missile shipdone 14:33
    89. Tidal
    90. UrchinUrchin
    91. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:29
    92. Tidal ×2
    93. Converter
    94. Tidal
    95. UrchinUrchin
    96. Tidal
    97. PhantasmRadar jammer ship
    98. Tidal
    99. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    100. Converter ×2
    101. Tidal
    102. Converter
    103. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    104. Converter
    105. Tidal
    106. OasisOasis
    107. Fusion ReactorFusion
    108. Construction ShipCon ship
    109. Converter
    110. Tidal
    111. UrchinUrchin
    112. Naval Radar / Sonar TowerNaval Radar / Sonar Tower

Counts are medians over the build's games: half of them build more, half fewer. The example game is [BS]Nampukk's (31 OS, 04/10/2026); 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

1793 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003716176101
6:005045487280
7:006492972592
8:00807016651001
9:00967926141532
10:001153637242325
11:001368547443105
12:001625058553875
13:001895168784645
14:002167379245691
15:002456588566520
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

[BS]Nampukk

30.9 OS · 04/10/2026

Open source match ↗

4 received units · includes a constructor
1255 metal received · 24430 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=1790
Riptide3:50Middle 50%: 3:12–4:34 · n=1747
Oppressor5:15Middle 50%: 4:29–6:06 · n=1726
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=1517

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildPRO_HYDRA63games of this build