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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 · 9 steps
    1. Mex ×2
    2. Windfor Air
    3. Wind
    4. Mex
    5. Wind
    6. Windfor Air
    7. GuardGuard
    8. Tidal ×2
    9. ShipyardShipyarddone 1:59 · 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
    3. Tidal
    4. Construction ShipCon ship ×2
    5. Mex ×3
    6. RiptideFrigatedone 3:17 · typical 3:52
    7. Tidal ×3
    8. Mex
    9. Converter
    10. RiptideFrigate
    11. Tidal
    12. ThistleThistle
    13. Mex
    14. Converter
    15. Naval Construction Turret
    16. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    17. UrchinUrchin
    18. OppressorDestroyerdone 5:05 · typical 5:11
    19. Mex
    20. JellyfishJellyfish
  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 · 120 steps
    1. HerringMissile corvette
    2. Mex ×2
    3. RiptideFrigate
    4. Mex
    5. RiptideFrigate
    6. OppressorDestroyer
    7. Radar TowerRadar Tower
    8. Tidal ×3
    9. Wind
    10. Tidal
    11. HerringMissile corvette
    12. Tidal
    13. RiptideFrigate
    14. Tidal
    15. Wind
    16. Naval Energy Converter
    17. RiptideFrigate
    18. Naval Energy Converter
    19. Wind
    20. OppressorDestroyer
    21. Wind
    22. HerringMissile corvette
    23. Wind
    24. RiptideFrigate
    25. Wind
    26. RiptideFrigate
    27. OppressorDestroyer
    28. Wind ×2
    29. HerringMissile corvette
    30. Wind
    31. Advanced Metal ExtractorT2 mexdone 10:11
    32. Wind
    33. Tidal
    34. Naval Construction Turret
    35. Wind
    36. Tidal
    37. Construction ShipCon ship
    38. Tidal ×2
    39. Construction ShipCon ship
    40. Naval Construction Turret
    41. Tidal
    42. Wind
    43. Tidal
    44. Construction ShipCon ship
    45. Naval Construction Turret
    46. Tidal ×2
    47. Advanced Metal ExtractorT2 mex
    48. Naval Construction Turret
    49. Tidal
    50. Wind
    51. Construction ShipCon ship
    52. Tidalfor Front
    53. Amphibious ComplexAmphibious Complexdone 11:06
    54. Tidal ×2
    55. Wind
    56. Tidalfor Front
    57. Tidal ×2
    58. Tidalfor Front
    59. Naval Energy Converter
    60. Tidal
    61. Wind
    62. Tidalfor Front
    63. Naval Energy Converter
    64. Tidal
    65. Tidalfor Front
    66. Advanced ShipyardAdvanced Shipyarddone 11:53
    67. Naval Energy Converter
    68. Tidal
    69. Naval Metal Storage
    70. Tidalfor Front
    71. Wind
    72. Tidal
    73. Naval Energy Converter
    74. Advanced Metal ExtractorT2 mex
    75. Tidal
    76. Naval Energy Converter
    77. Tidal
    78. Wind
    79. Naval Energy Converter
    80. Advanced Construction SubAdvanced Construction Sub
    81. Tidal
    82. Naval Energy Converter
    83. Wind
    84. Tidalfor Front
    85. Naval Energy Converter
    86. PathfinderPathfinder
    87. Tidalfor Front
    88. PathfinderPathfinder
    89. Con turret
    90. Naval Energy Converter
    91. Tidalfor Front
    92. PathfinderPathfinder
    93. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:59
    94. PathfinderPathfinder
    95. Tidalfor Front
    96. Naval Energy Converter
    97. Tidalfor Front
    98. Naval Energy Converter
    99. Tidalfor Front
    100. Naval Energy Converter
    101. DespotBattleshipdone 14:35
    102. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    103. Tidal ×2
    104. Advanced Metal ExtractorT2 mex
    105. Naval Construction Turret
    106. Con turret
    107. Tidal
    108. Naval Construction Turret
    109. Tidal
    110. Naval Construction Turret
    111. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    112. Tidalfor Front
    113. Naval Construction Turret
    114. Hovercraft PlatformHovercraft Platformdone 14:56
    115. Naval Construction Turret
    116. Tidal ×3
    117. Fusion ReactorFusionnot finished by 15:00
    118. Tidal
    119. GoonGoon
    120. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor

Counts are medians over the build's games: half of them build more, half fewer. The example game is Kbot_my_Ahole's (37 OS, 30/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 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

Kbot_my_Ahole

37.3 OS · 30/09/2026

Open source match ↗

15 received units · includes a constructor
1129 metal received · 19649 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