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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 · 1589 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1793 · 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 1589 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 · 9 steps
    1. Wind ×3for Air
    2. Mex ×2
    3. Wind ×2
    4. Mex
    5. Wind ×2
    6. Energy storage
    7. Radar TowerRadar Tower
    8. ThistleThistle
    9. ShipyardShipyarddone 2:24 · 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

    The example game in this phase · 7 steps
    1. RiptideFrigate ×2done 2:37 · typical 3:50
    2. Construction ShipCon ship ×2
    3. Mex ×2
    4. Naval Construction Turret
    5. ThistleThistle
    6. Mex
    7. GuardGuard ×2
  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 · 114 steps
    1. GuardGuard
    2. RiptideFrigate
    3. GuardGuard
    4. RiptideFrigate
    5. UrchinUrchin
    6. RiptideFrigate
    7. Mex ×3
    8. RiptideFrigate
    9. Con turret
    10. RiptideFrigate
    11. Aircraft PlantAircraft Plantdone 6:50
    12. ShurikenShuriken
    13. UrchinUrchin
    14. ShurikenShuriken ×3
    15. Wind
    16. ShurikenShuriken ×2
    17. Wind
    18. ShurikenShuriken ×2
    19. Wind
    20. Advanced Metal ExtractorT2 mexdone 9:03 · typical 9:58
    21. ShurikenShuriken ×2
    22. Wind
    23. Wind
    24. OrcaSubmarinedone 9:04
    25. Wind ×2
    26. Wind
    27. Wind
    28. ShurikenShuriken
    29. Wind ×3
    30. Wind
    31. Wind
    32. Advanced Metal ExtractorT2 mex
    33. OrcaSubmarine
    34. ShurikenShuriken
    35. Wind
    36. Wind ×3
    37. ShurikenShuriken
    38. Wind
    39. UrchinUrchin
    40. Wind ×3
    41. Wind
    42. Wind
    43. ShurikenShuriken
    44. UrchinUrchin
    45. Wind
    46. Wind
    47. OrcaSubmarine
    48. Advanced Metal ExtractorT2 mex
    49. Wind
    50. ShurikenShuriken
    51. Wind
    52. Wind
    53. Wind ×3
    54. Wind
    55. Wind
    56. WhirlwindWhirlwind
    57. Wind
    58. Construction AircraftCon aircraft
    59. Wind
    60. Advanced Metal ExtractorT2 mex
    61. WhirlwindWhirlwind
    62. Con turret
    63. Wind ×2
    64. Metal storage
    65. Wind
    66. WhirlwindWhirlwind
    67. Wind ×2
    68. Con turret
    69. Wind
    70. ThistleThistle
    71. Wind ×2
    72. WhirlwindWhirlwind
    73. Advanced Metal ExtractorT2 mex
    74. Wind
    75. WhirlwindWhirlwind
    76. Wind ×2
    77. WhirlwindWhirlwind
    78. ThistleThistle
    79. Wind
    80. Con turret
    81. Wind
    82. ThistleThistle
    83. WhirlwindWhirlwind
    84. Wind
    85. ThistleThistle
    86. FinchFinch ×2
    87. Con turret
    88. FinchFinch
    89. Wind
    90. WhirlwindWhirlwind
    91. Wind
    92. WhirlwindWhirlwind
    93. Wind
    94. WhirlwindWhirlwind
    95. Wind
    96. WhirlwindWhirlwind
    97. Wind
    98. ShurikenShuriken
    99. Wind
    100. ShurikenShuriken ×2
    101. Wind
    102. ShurikenShuriken ×2
    103. Con turret
    104. ThistleThistle
    105. ShurikenShuriken
    106. Wind
    107. ShurikenShuriken
    108. ThistleThistle
    109. ShurikenShuriken ×3
    110. Con turret
    111. ThistleThistle
    112. ShurikenShuriken
    113. Construction AircraftCon aircraft
    114. ShurikenShuriken ×3

Counts are medians over the build's games: half of them build more, half fewer. The example game is KolyaSalo's (31 OS, 04/10/2026); 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

1793 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003716176101
6:005045487280
7:006492972592
8:00807016651001
9:00967926141532
10:001153637242325
11:001368547443105
12:001625058553875
13:001895168784645
14:002167379245691
15:002456588566520
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

KolyaSalo

31.0 OS · 04/10/2026

Open source match ↗

6 received units · includes a constructor
155 metal received · 12805 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=1790
Riptide3:50Middle 50%: 3:12–4:34 · n=1747
Oppressor5:15Middle 50%: 4:29–6:06 · n=1726
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=1517

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildPRO_HYDRA63games of this build
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas