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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 · 812 distinct matches · 107 players · 84% of Cortex Beach sea games · team won 55% of 877 · 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 812 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 1:44–2:08

    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
    3. Wind ×3for Air
    4. Energy storage
    5. Tidal
    6. ShipyardShipyarddone 1:56 · 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 · 20 steps
    1. Tidal
    2. Construction ShipCon ship ×2
    3. SupporterGunboat ×2
    4. HerringMissile corvette
    5. Mex ×2
    6. HerringMissile corvette
    7. Mex
    8. Mex ×2
    9. GuardGuard
    10. RiptideFrigatedone 3:50 · typical 3:52
    11. UrchinUrchin
    12. Wind
    13. RiptideFrigate
    14. Wind
    15. Mex
    16. Construction ShipCon ship
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. OppressorDestroyerdone 5:21 · typical 5:11
    19. Converter
    20. Naval Construction Turret
  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 (41%) · tidal (38%) · con turret (34%)

    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 · 138 steps
    1. HerringMissile corvette
    2. Con turret
    3. Death CavalryDeath Cavalry
    4. UrchinUrchin
    5. Mex ×2
    6. RiptideFrigate
    7. GuardGuard
    8. RiptideFrigate ×2
    9. Wind
    10. Radar TowerRadar Tower
    11. Wind
    12. RiptideFrigate
    13. Wind
    14. Wind
    15. Wind
    16. Tidal
    17. RiptideFrigate
    18. Wind
    19. Wind
    20. Wind
    21. Tidal
    22. OppressorDestroyer
    23. Wind
    24. Wind ×2
    25. Advanced Metal ExtractorT2 mexdone 9:02 · typical 9:58
    26. Tidal
    27. Wind ×2
    28. Wind
    29. HerringMissile corvette
    30. Wind
    31. Wind
    32. Wind
    33. Death CavalryDeath Cavalry
    34. Wind
    35. Wind
    36. Wind
    37. Wind
    38. Wind
    39. RiptideFrigate
    40. Wind
    41. RiptideFrigate
    42. Wind
    43. Wind
    44. Wind
    45. Advanced Metal ExtractorT2 mex
    46. Wind
    47. Wind
    48. RiptideFrigate
    49. Wind
    50. Wind
    51. RiptideFrigate
    52. Wind
    53. Wind
    54. Wind
    55. RiptideFrigate
    56. Wind
    57. Wind
    58. Wind
    59. Wind
    60. HerringMissile corvette
    61. Wind
    62. Wind
    63. Death CavalryDeath Cavalry
    64. Wind
    65. Mex
    66. Wind
    67. Construction ShipCon ship
    68. Wind ×3
    69. Mex
    70. Wind
    71. Advanced Metal ExtractorT2 mex
    72. Wind ×3
    73. Advanced ShipyardAdvanced Shipyarddone 11:41
    74. Naval Construction Turret
    75. BeholderBeholder
    76. Wind ×2
    77. UrchinUrchin
    78. Wind ×5
    79. Naval Construction Turret
    80. Wind
    81. SlingshotSlingshot
    82. Naval Construction Turret
    83. Wind
    84. Advanced Construction SubAdvanced Construction Sub
    85. Wind ×3
    86. PathfinderPathfinder
    87. Advanced Metal ExtractorT2 mex
    88. Wind
    89. PathfinderPathfinder
    90. BeholderBeholder
    91. Wind
    92. PathfinderPathfinder ×2
    93. Wind
    94. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:51
    95. BeholderBeholder
    96. Wind
    97. PathfinderPathfinder
    98. Wind
    99. OasisOasis
    100. Wind
    101. BeholderBeholder
    102. Tidal
    103. Wind
    104. Tidal
    105. Wind
    106. Tidal
    107. Wind
    108. Tidal
    109. Wind
    110. Tidal
    111. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    112. Wind
    113. PhantasmRadar jammer ship
    114. Tidal
    115. Wind
    116. Tidal
    117. Wind
    118. DespotBattleshipdone 13:59
    119. Tidal
    120. Wind
    121. Wind
    122. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    123. Wind
    124. Tidal
    125. Wind
    126. Wind
    127. Wind
    128. Tidal
    129. Wind
    130. Arrow StormAnti-air shipdone 14:18
    131. Tidal
    132. BeholderBeholder
    133. Wind
    134. Wind
    135. Advanced Metal ExtractorT2 mex
    136. MessengerCruise missile shipnot finished by 15:00
    137. BeholderBeholder
    138. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is RAM_WetRat's (41 OS, 15/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 79% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:28 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:34 · 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

877 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025312150
5:003701197100
6:005032534254
7:0064761096590
8:00807618331031
9:00968328541610
10:001159239942340
11:001382252133090
12:001635261643821
13:001911472004611
14:002195382755717
15:002492992706561
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

RAM_WetRat

40.7 OS · 15/08/2026

Open source match ↗

5 received units · includes a constructor
2800 metal received · 57623 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:44–2:08 · n=875
Riptide3:52Middle 50%: 3:16–4:34 · n=863
Oppressor5:11Middle 50%: 4:16–6:08 · n=848
Advanced Metal Extractor9:58Middle 50%: 9:16–10:53 · n=743

Played most by

EpicTyrannus85games of this buildDamsko67games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas