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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 · 797 distinct matches · 106 players · 84% of Cortex Beach sea games · team won 55% of 860 · 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 797 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 · 6 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind
    4. Windfor Air
    5. Energy storage
    6. ShipyardShipyarddone 1:46 · typical 1:57
  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 (43%) · wind (40%) · submarine (39%) · gunboat (36%) · con turret (35%)

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

    The example game in this phase · 17 steps
    1. Construction ShipCon ship ×2
    2. OppressorDestroyerdone 3:04 · typical 5:10
    3. Mex
    4. Wind ×3
    5. Mex
    6. HerringMissile corvette
    7. Naval Construction Turret
    8. RiptideFrigatedone 4:10 · typical 3:52
    9. Mex
    10. Mex
    11. RiptideFrigate
    12. Con turret
    13. Mex
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Death CavalryDeath Cavalry
    16. Wind
    17. UrchinUrchin
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine10Wind
    Builders
    • Death Cavalry1 Death Cavalry
    • Construction Ship1 Con ship
    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 (48%) · Guard (47%) · Radar Tower (40%) · tidal (38%) · con turret (35%)

    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 · 105 steps
    1. Wind ×4
    2. Tidal
    3. Wind
    4. UrchinUrchin
    5. RiptideFrigate
    6. Wind
    7. Tidal
    8. Wind ×4
    9. HerringMissile corvette
    10. Wind ×2
    11. UrchinUrchin
    12. Wind ×2
    13. OppressorDestroyer
    14. Wind ×2
    15. UrchinUrchin
    16. Wind ×9
    17. HerringMissile corvette
    18. Wind
    19. HerringMissile corvette
    20. Wind
    21. Mex
    22. Wind
    23. HerringMissile corvette
    24. Wind ×2
    25. HerringMissile corvette
    26. Radar TowerRadar Tower
    27. Wind
    28. HerringMissile corvette ×4
    29. Advanced Metal ExtractorT2 mexdone 9:30 · typical 9:57
    30. HerringMissile corvette
    31. BeholderBeholderfor Tech
    32. BeholderBeholder
    33. Mex ×2
    34. BeholderBeholder
    35. Construction ShipCon ship
    36. BeholderBeholder ×2
    37. Advanced Metal ExtractorT2 mex
    38. Naval Construction Turret
    39. Mex
    40. BeholderBeholderfor Tech
    41. Naval Construction Turret
    42. BeholderBeholderfor Tech
    43. Advanced Metal ExtractorT2 mex
    44. Advanced ShipyardAdvanced Shipyarddone 11:31
    45. Mex
    46. Wind
    47. Advanced Metal ExtractorT2 mex
    48. Wind
    49. Con turret
    50. Wind ×2
    51. Converter ×2
    52. Advanced Construction SubAdvanced Construction Sub
    53. Wind ×2
    54. Converter
    55. Wind
    56. Naval Construction Turret
    57. Wind
    58. PathfinderPathfinder
    59. Converter
    60. Wind
    61. PathfinderPathfinder
    62. Wind
    63. Naval Construction Turret
    64. Converter
    65. Wind
    66. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:49
    67. Wind
    68. Converter
    69. Wind
    70. BrimstoneAnti-swarm shipdone 12:40
    71. Wind
    72. Converter
    73. Wind
    74. BrimstoneAnti-swarm ship
    75. Wind
    76. Converter
    77. Wind
    78. BrimstoneAnti-swarm ship
    79. Wind
    80. Converter
    81. Wind
    82. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    83. BrimstoneAnti-swarm ship
    84. Wind
    85. Converter
    86. Wind
    87. Converter
    88. Wind
    89. BrimstoneAnti-swarm ship
    90. Wind
    91. Converter
    92. Black HydraBlack Hydranot finished by 15:00
    93. Wind
    94. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    95. Wind ×6
    96. Naval Construction Turret
    97. Advanced Construction SubAdvanced Construction Sub
    98. Wind ×2
    99. Naval Construction Turret
    100. Wind ×4
    101. Experimental GantryExperimental Gantrynot finished by 15:00
    102. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    103. Wind
    104. Naval Metal Storage
    105. Wind ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is haaven's (46 OS, 25/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 78% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 82% 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 2:27 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:33 · in 32% 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

860 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156700
4:0025252150
5:003701197100
6:005033535253
7:0064791089590
8:00807318231036
9:00968328441610
10:001158939952337
11:001381552163090
12:001635861623828
13:001916272054613
14:002195883165726
15:002496293126596
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

45.7 OS · 25/09/2026

Open source match ↗

7 received units · includes a constructor
361 metal received · 63472 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=858
Riptide3:52Middle 50%: 3:16–4:34 · n=846
Oppressor5:10Middle 50%: 4:13–6:08 · n=831
Advanced Metal Extractor9:57Middle 50%: 9:16–10:53 · n=731

Played most by

EpicTyrannus83games of this buildDamsko66games of this buildWaboum64games of this buildPRO_HYDRA58games of this buildMrCoolPotato51games of this build