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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 · 1591 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1795 · 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 1591 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 · 27 steps
    1. Mex ×3
    2. Wind ×3for Air
    3. Wind ×5
    4. Vehicle PlantVehicle Plantdone 1:35
    5. Construction VehicleCon vehicle
    6. Wind ×3
    7. Energy storage
    8. MuskratMuskrat
    9. Wind
    10. Mex
    11. GuardGuard
    12. GarpikeGarpike ×3
    13. Radar TowerRadar Tower
    14. Con turret
    15. GuardGuard
    16. Mex
    17. ThistleThistle
    18. RascalRascal
    19. GuardGuard
    20. Construction VehicleCon vehicle
    21. GuardGuard
    22. ThistleThistle
    23. Mex
    24. Con turret
    25. ThistleThistle
    26. Mex
    27. ShipyardShipyarddone 5:17 · 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

  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 · 127 steps
    1. Mex
    2. HerringMissile corvette
    3. Mex
    4. HerringMissile corvette
    5. Vehicle PlantEat Vehicle Plantreclaimed for its metal
    6. RiptideFrigatedone 5:49 · typical 3:50
    7. Converter
    8. RiptideFrigate ×3
    9. Converter
    10. OppressorDestroyerdone 7:19 · typical 5:14
    11. Con turret
    12. OppressorDestroyer
    13. Wind ×2
    14. OrcaSubmarinedone 8:35
    15. Wind ×3
    16. OrcaSubmarine
    17. Wind
    18. Construction ShipCon ship
    19. Mex
    20. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    21. Death CavalryDeath Cavalry
    22. Wind
    23. Advanced Metal ExtractorT2 mexdone 10:05 · typical 9:58
    24. Wind
    25. Death CavalryDeath Cavalry
    26. Con turret
    27. Wind
    28. Death CavalryDeath Cavalry
    29. Wind
    30. Radar TowerRadar Tower
    31. Death CavalryDeath Cavalry
    32. Con turret
    33. Advanced Metal ExtractorT2 mex
    34. Wind
    35. GuardGuard ×2
    36. Con turret
    37. Wind
    38. ThistleThistle
    39. Wind
    40. Con turret
    41. GuardGuard
    42. Wind
    43. Advanced Metal ExtractorT2 mex
    44. JellyfishJellyfish
    45. ShipyardEat Shipyardreclaimed for its metal
    46. Wind
    47. Tidal
    48. Wind
    49. Tidal
    50. JellyfishJellyfish
    51. Tidal
    52. Wind ×2
    53. Bot LabBot Labdone 11:49
    54. Wind
    55. Wind
    56. Construction BotCon bot
    57. Tidal
    58. Wind
    59. Wind
    60. Wind ×2
    61. Tidal
    62. Wind
    63. Wind
    64. Wind
    65. Wind ×2
    66. Tidal
    67. Wind
    68. Wind
    69. Energy storage
    70. Wind
    71. Aircraft PlantAircraft Plantdone 12:49
    72. Metal storage
    73. Tidal
    74. Wind
    75. Wind
    76. Construction AircraftCon aircraft
    77. Advanced Aircraft PlantAdvanced Aircraft Plantdone 13:42
    78. LazarusLazarus
    79. Tidal
    80. Wind
    81. Aircraft PlantEat Aircraft Plantreclaimed for its metal
    82. Wind
    83. LazarusLazarus
    84. Advanced Metal ExtractorT2 mex
    85. Wind
    86. Tidal
    87. Wind
    88. Wind
    89. LazarusLazarus
    90. Tidal
    91. Wind
    92. Wind
    93. OracleOracle
    94. Wind
    95. Wind
    96. Wind
    97. Tidal
    98. HighwindHighwind
    99. Wind
    100. Wind
    101. HighwindHighwind
    102. Tidal
    103. HighwindHighwind
    104. Wind
    105. Con turret
    106. Wind
    107. Con turret ×2
    108. Wind
    109. Con turret
    110. HighwindHighwind
    111. Wind
    112. Tidal
    113. Con turret ×2
    114. Wind
    115. Con turret ×2
    116. Wind
    117. Con turret
    118. Wind
    119. HighwindHighwind
    120. Con turret ×2
    121. Tidal
    122. Con turret
    123. Wind
    124. Con turret
    125. LicheLichenot finished by 15:00
    126. Wind
    127. Con turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is MKnetxTTV's (32 OS, 27/09/2026); 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

1795 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003717176101
6:005049487280
7:006492975592
8:00807016651001
9:00967926141532
10:001153637242325
11:001368547443105
12:001625058553871
13:001895168784629
14:002167379245680
15:002456588566501
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

MKnetxTTV

31.9 OS · 27/09/2026

Open source match ↗

5 received units · includes a constructor
350 metal received · 43108 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=1792
Riptide3:50Middle 50%: 3:12–4:34 · n=1749
Oppressor5:14Middle 50%: 4:29–6:06 · n=1728
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=1519

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildfanboi63games of this build
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas