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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 (94%)

#naval #eco · 936 distinct matches · 113 players · 83% of Cortex Beach sea games · team won 54% of 1010 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:57

  1. Grab mex and tidal, push com to sea to build shipyard.
  2. Finish shipyard and start pumping frigate and destroyer.
  3. Field first frigate to contest enemy sea entry or hold vision.
  4. Add destroyer to the mix as the fight for sea develops.
  5. Shift into advanced metal extractor as the economy transition.

Phase by phase

TYPICAL OF ITS 936 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 Turbine2Windfor allies
    • Wind Turbine2Wind
    • Energy Storage1Energy storage
    Order
    1. ShipyardShipyard after 3 mex, 2 wind, 1 energy storagedone ~1:56, middle half 1:41–2:07

    Some games also: tidal (31%)

    By 1:40 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 8 steps
    1. Mex ×2
    2. Windfor Air
    3. Mex
    4. Wind ×2for Air
    5. GuardGuard
    6. Wind
    7. Tidal
    8. ShipyardShipyarddone 1:54 · 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%) · wind (39%) · submarine (38%) · mex (36%) · gunboat (36%)

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

    The example game in this phase · 19 steps
    1. Construction ShipCon ship ×2
    2. Tidal
    3. Mex
    4. HerringMissile corvette
    5. Tidal
    6. HerringMissile corvette
    7. Mex ×2
    8. Construction ShipCon ship
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. Mex
    11. SlingshotSlingshot
    12. RiptideFrigatedone 4:14 · typical 3:49
    13. Mex
    14. Tidal
    15. RiptideFrigate
    16. UrchinUrchin
    17. Tidal
    18. RiptideFrigate
    19. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine9Wind
    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 (40%) · Radar Tower (40%) · con turret (35%)

    By 10:00 in all: 9 mex · 11 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 108 steps
    1. OppressorDestroyerdone 6:05 · typical 5:12
    2. Mex ×2
    3. OppressorDestroyer ×2
    4. Radar TowerRadar Tower
    5. Death CavalryDeath Cavalry
    6. Mex
    7. Death CavalryDeath Cavalry
    8. Con turret ×2
    9. Mex
    10. Naval Construction Turret
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. Naval Construction Turret
    13. Energy storage
    14. Con turret
    15. Naval Hovercraft PlatformNaval Hovercraft Platformdone 9:43
    16. Advanced Metal ExtractorT2 mexdone 9:47 · typical 9:58
    17. Con turret
    18. Tidal ×2
    19. BirdeaterHover anti-air
    20. Tidal
    21. Construction ShipCon ship
    22. Wind
    23. Advanced Metal ExtractorT2 mex
    24. Tidal
    25. MangonelHover rocket bot
    26. Wind
    27. Tidal
    28. MangonelHover rocket bot
    29. Wind
    30. Tidal
    31. MangonelHover rocket bot
    32. Wind
    33. Tidal
    34. Wind ×2
    35. Tidal
    36. MangonelHover rocket bot
    37. Wind
    38. Advanced Metal ExtractorT2 mex
    39. Tidal
    40. Wind
    41. Tidal
    42. Wind
    43. MangonelHover rocket bot
    44. Wind
    45. Tidal
    46. Wind ×2
    47. Tidal
    48. Wind ×2
    49. Tidal
    50. Wind
    51. Tidal
    52. Wind
    53. Tidal
    54. Wind ×2
    55. Construction HovercraftCon hovercraft
    56. Wind
    57. Tidal
    58. Wind
    59. Tidal
    60. Wind ×4
    61. Advanced Metal ExtractorT2 mex
    62. GoonGoon
    63. Wind
    64. GoonGoon
    65. Naval Construction Turret
    66. Wind
    67. GoonGoon
    68. Wind
    69. GoonGoon
    70. Wind
    71. Naval Construction Turret
    72. GoonGoon
    73. Wind
    74. GoonGoon
    75. Wind ×2
    76. GoonGoon
    77. Wind
    78. GoonGoon
    79. Wind
    80. GoonGoon
    81. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    82. Wind
    83. GoonGoon
    84. Wind
    85. GoonGoon
    86. Wind
    87. BirdeaterHover anti-air
    88. Wind ×2
    89. BirdeaterHover anti-air
    90. Wind ×2
    91. SentrySentry
    92. MangonelHover rocket bot
    93. SentrySentry
    94. MangonelHover rocket bot
    95. Advanced ShipyardAdvanced Shipyarddone 14:23
    96. SentrySentry
    97. BeamerBeamer
    98. MangonelHover rocket bot ×2
    99. Construction HovercraftCon hovercraft
    100. Advanced Construction SubAdvanced Construction Sub
    101. GoonGoon
    102. Advanced Metal ExtractorT2 mex
    103. GoonGoon ×2
    104. Con turret
    105. PathfinderPathfinder
    106. GoonGoon ×2
    107. PathfinderPathfinder
    108. GoonGoon ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is [MooDeng]NongJohn's (39 OS, 09/10/2026); 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 1:59 · in 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:14 · in 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 67% of games
  • Construction Bot1 Con bot from Geofirst at 2:27 · in 70% of games
  • Hercules1 Light transport from Airfirst at 2:32 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:09 · 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

1010 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156900
4:002539051
5:003716197100
6:005042539261
7:0064871073591
8:00805918071017
9:00967727771581
10:001157139182311
11:001375649653051
12:001628560633828
13:001908671174611
14:002185281925714
15:002489293126589
WHAT THE NUMBERS SAY

Standard sea-first play for Beach sea, with the lowest team win rate of the roles shown at 54% and a big gap in metal destroyed vs lost by 15:00.

  • + Metal produced hits 24892 by 15:00, second highest overall shown.
  • − Enemy metal destroyed only 9261 by 15:00 against own losses of 6529, a tight margin for a sea role.
THE EXAMPLE YOU ARE READING

[MooDeng]NongJohn

39.0 OS · 09/10/2026

Open source match ↗

9 received units · includes a constructor
284 metal received · 14262 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:41–2:07 · n=1008
Riptide3:49Middle 50%: 3:15–4:32 · n=989
Oppressor5:12Middle 50%: 4:22–6:07 · n=971
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=854

Played most by

EpicTyrannus99games of this buildDamsko68games of this buildKbot_my_Ahole64games of this buildWaboum64games of this buildPRO_HYDRA63games of this build