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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 · 8 steps
    1. Mex ×2
    2. Wind ×2
    3. Mex
    4. Wind ×2
    5. Energy storage
    6. GuardGuard
    7. Wind ×2for Air
    8. ShipyardShipyarddone 2:14 · 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 · 18 steps
    1. Windfor Air
    2. Construction ShipCon ship ×2
    3. Wind ×2
    4. OrcaSubmarinenot finished by 15:00
    5. HerringMissile corvette
    6. Mex
    7. OrcaSubmarine
    8. Tidal
    9. Mex
    10. RiptideFrigatedone 3:34 · typical 3:51
    11. Mex
    12. RiptideFrigate
    13. Mex ×2
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    15. Con turret
    16. UrchinUrchin
    17. OppressorDestroyerdone 5:46 · typical 5:09
    18. Mex ×2
  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 · 128 steps
    1. ThistleThistle
    2. Mex
    3. GuardGuard ×2
    4. Wind
    5. Mex
    6. GuardGuard
    7. Death CavalryDeath Cavalry
    8. Wind
    9. Radar TowerRadar Tower
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. HerringMissile corvette
    12. Wind ×4
    13. Construction ShipCon ship
    14. Naval Energy Converter
    15. Wind
    16. RiptideFrigate
    17. Wind
    18. Naval Energy Converter
    19. RiptideFrigate
    20. Wind ×2
    21. Naval Energy Converter
    22. Wind ×4
    23. Naval Energy Converter
    24. OppressorDestroyer
    25. Wind ×3
    26. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    27. Wind
    28. Naval Construction Turret
    29. Wind ×2
    30. UrchinUrchin
    31. Wind
    32. RiptideFrigate
    33. Wind ×4
    34. UrchinUrchin
    35. Wind
    36. Advanced Metal ExtractorT2 mexdone 10:07 · typical 9:57
    37. Wind ×2
    38. HerringMissile corvette
    39. Wind ×2
    40. UrchinUrchin
    41. Wind ×2
    42. HerringMissile corvette
    43. Naval Construction Turret
    44. Wind
    45. HerringMissile corvette
    46. Wind
    47. Con turret
    48. Naval Construction Turret
    49. Advanced Metal ExtractorT2 mex
    50. Wind ×5
    51. Advanced ShipyardAdvanced Shipyarddone 11:16
    52. Advanced Metal ExtractorT2 mex
    53. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    54. Wind ×5
    55. Advanced Construction SubAdvanced Construction Sub
    56. Naval Construction Turret
    57. Wind
    58. Tidal
    59. Wind ×2
    60. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    61. Tidal
    62. Wind ×2
    63. Tidal
    64. Wind ×2
    65. Tidal
    66. Advanced Metal ExtractorT2 mex
    67. Wind
    68. Tidal ×3
    69. Advanced Construction SubAdvanced Construction Sub
    70. Wind
    71. Tidal
    72. Wind
    73. Tidal
    74. Wind ×2
    75. Tidal
    76. Wind ×2
    77. Tidal
    78. BrimstoneAnti-swarm shipdone 12:32
    79. Wind
    80. Tidal
    81. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:58
    82. Wind
    83. BrimstoneAnti-swarm ship
    84. Wind
    85. Tidal
    86. Wind
    87. Tidal
    88. Wind ×2
    89. Tidal ×2
    90. Wind
    91. Tidal
    92. Wind
    93. Tidal ×2
    94. Wind ×2
    95. Tidal ×3
    96. Wind
    97. Advanced Metal ExtractorT2 mex
    98. Wind
    99. Tidal
    100. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    101. Wind
    102. OasisOasis
    103. Wind
    104. Converter
    105. Wind
    106. Converter
    107. Arrow StormAnti-air shipdone 13:53
    108. Wind
    109. Converter
    110. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    111. Wind
    112. Black HydraBlack Hydranot finished by 15:00
    113. Converter
    114. Wind
    115. Converter
    116. Wind
    117. Converter
    118. Wind
    119. Converter
    120. Advanced Metal ExtractorT2 mex
    121. Wind
    122. Converter
    123. Wind
    124. Converter
    125. Wind ×2
    126. Converter ×2
    127. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    128. Wind ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is sirniho's (38 OS, 23/09/2026); 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

sirniho

37.8 OS · 23/09/2026

Open source match ↗

8 received units · includes a constructor
543 metal received · 29787 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