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Beach sea / Cortex / Economy first / OBSERVED BUILD

Standard beach sea

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 (94%)

#naval #eco · 729 distinct matches · 102 players · 84% of Cortex Beach sea games · team won 55% of 789 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:57

  1. Open 3 mex and wind while com heads straight to sea.
  2. Drop Shipyard fast, before 2:00, to seize early sea presence.
  3. Push "frigate" out to contest enemy sea entry or hold vision.
  4. Add "destroyer" as the fleet grows.
  5. Transition into Advanced Metal Extractor to catch up on eco.

Phase by phase

TYPICAL OF ITS 729 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 ~1:57, middle half 1:45–2:08

    By 1:41 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 10 steps
    1. Mex ×3
    2. Wind
    3. Windfor Air
    4. Wind
    5. Windfor Air
    6. GuardGuard
    7. Energy storage
    8. Windfor Air
    9. Tidal
    10. ShipyardShipyarddone 2:11 · typical 1:57
  2. 2

    Shipyard to 5:00

    Economy
    • Metal Extractor5Mex
    • Tidal Generator1Tidal
    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 (42%) · wind (41%) · submarine (40%) · con turret (35%) · gunboat (34%)

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

    The example game in this phase · 13 steps
    1. Construction ShipCon ship ×2
    2. OppressorDestroyerdone 3:40 · typical 5:09
    3. Naval Construction Turret
    4. Mex ×4
    5. HerringMissile corvette
    6. Mex
    7. RiptideFrigatedone 4:30 · typical 3:51
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    9. Wind
    10. RiptideFrigate
    11. Wind
    12. Mex
    13. Death CavalryDeath Cavalry
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine10Wind
    Builders
    • Death Cavalry1 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    • Herring2 Missile corvette
    Other
    • Naval Radar / Sonar Tower1 Naval Radar / Sonar Tower

    Some games also: Urchin (50%) · Naval Construction Turret (47%) · Guard (47%) · Radar Tower (41%) · tidal (38%)

    By 10:00 in all: 9 mex · 12 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 145 steps
    1. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    2. Wind
    3. Mex
    4. HerringMissile corvette
    5. Wind
    6. HerringMissile corvette
    7. UrchinUrchin
    8. RiptideFrigate
    9. Wind
    10. RiptideFrigate
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. Wind
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. RiptideFrigate
    15. Con turret
    16. UrchinUrchin
    17. RiptideFrigate
    18. OppressorDestroyer
    19. UrchinUrchin
    20. Construction ShipCon ship
    21. Wind
    22. Advanced Metal ExtractorT2 mexdone 8:11 · typical 9:57
    23. Wind
    24. Construction ShipCon ship
    25. Metal storage
    26. Construction ShipCon ship
    27. Wind
    28. Radar TowerRadar Tower
    29. Tidal
    30. Construction ShipCon ship
    31. GuardGuard
    32. Tidal
    33. Bot LabBot Labdone 8:30
    34. Wind
    35. Advanced Metal ExtractorT2 mex
    36. Tidal ×3
    37. GruntGrunt ×2
    38. Tidal
    39. GruntGrunt ×2
    40. Tidal
    41. GruntGrunt ×2
    42. Wind
    43. Tidal
    44. GruntGrunt
    45. Advanced Metal ExtractorT2 mex
    46. GruntGrunt
    47. Tidal
    48. Wind
    49. GruntGrunt ×2
    50. Tidal
    51. GruntGrunt
    52. Construction BotCon bot
    53. Tidal
    54. Naval Construction Turret
    55. Wind
    56. Construction BotCon bot
    57. Tidal
    58. Con turret
    59. Tidal
    60. GruntGrunt
    61. Tidal
    62. Wind
    63. Con turret
    64. GruntGrunt
    65. Tidal
    66. GruntGrunt
    67. Con turret
    68. Tidal
    69. Wind
    70. Naval Construction Turret
    71. GruntGrunt
    72. Wind
    73. GruntGrunt
    74. Con turret
    75. GruntGrunt ×2
    76. Naval Construction Turret
    77. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    78. Tidal
    79. GruntGrunt ×2
    80. Twin GuardTwin Guard
    81. Advanced Metal ExtractorT2 mex
    82. GruntGrunt
    83. Naval Construction Turret
    84. Twin GuardTwin Guard ×2
    85. Tidal
    86. Con turret
    87. Twin GuardTwin Guard
    88. Bot LabBot Labdone 10:56
    89. GruntGrunt
    90. Naval Construction Turret
    91. Dragon's MawDragon's Maw
    92. GruntGrunt
    93. Con turret
    94. GruntGrunt
    95. Con turret
    96. GruntGrunt ×3
    97. Con turret
    98. GruntGrunt ×4
    99. WardenWarden
    100. GruntGrunt ×2
    101. Naval Construction Turret
    102. GruntGrunt ×2
    103. Con turret
    104. GruntGrunt
    105. Con turret
    106. GruntGrunt
    107. CastroCastro
    108. Naval Construction Turret
    109. GruntGrunt ×2
    110. Naval Construction Turret
    111. GruntGrunt ×2
    112. Naval Construction Turret
    113. GruntGrunt ×3
    114. Advanced ShipyardAdvanced Shipyarddone 13:07
    115. GruntGrunt
    116. Tidal
    117. GruntGrunt ×2
    118. Dragon's MawDragon's Maw
    119. GruntGrunt
    120. AgitatorAgitatordone 12:56
    121. GruntGrunt ×2
    122. Tidal
    123. GruntGrunt
    124. Tidal ×2
    125. GruntGrunt
    126. Tidal
    127. GruntGrunt
    128. Tidal ×3
    129. GruntGrunt
    130. Tidal
    131. GruntGrunt
    132. Tidal ×2
    133. GruntGrunt
    134. Tidal
    135. GruntGrunt ×3
    136. Tidal
    137. GruntGrunt
    138. Advanced Construction SubAdvanced Construction Sub
    139. GruntGrunt
    140. Fusion ReactorFusiondone 14:19
    141. Tidal
    142. GruntGrunt
    143. Advanced Construction SubAdvanced Construction Sub
    144. Black HydraBlack Hydranot finished by 15:00
    145. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:31

Counts are medians over the build's games: half of them build more, half fewer. The example game is haaven's (45 OS, 22/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:54 · in 79% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 81% of games
  • Lazarus1 Lazarus from Geofirst at 2:14 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:29 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:35 · in 31% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:09 · in 88% 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

789 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156300
4:002522050
5:003699194100
6:005026532250
7:0064731100588
8:00808018571041
9:00968328851621
10:001160240232345
11:001382252273090
12:001635262003851
13:001911172574621
14:002186583045721
15:002487692656531
WHAT THE NUMBERS SAY

Standard Beach sea wins more than Geo sea's 50% and gets its Shipyard up faster, using early sea access before falling behind on land resources.

  • + Shipyard finishes by 1:57, faster than Geo sea's 3:18
  • + 54% team win rate beats the Cortex geo sea baseline
  • − Metal produced trails Geo sea's Cortex build, 24356 vs 28451 by 15:00
  • − T2 factory only lands in 35% of games by 12:42
THE EXAMPLE YOU ARE READING

haaven

45.0 OS · 22/09/2026

Open source match ↗

6 received units · includes a constructor
2826 metal received · 127761 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:45–2:08 · n=787
Riptide3:51Middle 50%: 3:15–4:31 · n=782
Oppressor5:09Middle 50%: 4:11–6:07 · n=764
Advanced Metal Extractor9:57Middle 50%: 9:15–10:53 · n=667

Played most by

EpicTyrannus68games of this buildDamsko64games of this buildWaboum64games of this buildPRO_HYDRA54games of this buildMrCoolPotato51games of this build