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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 · 805 distinct matches · 107 players · 84% of Cortex Beach sea games · team won 55% of 869 · 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 805 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 1:45–2:08

    By 1:41 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 7 steps
    1. Mex ×2
    2. Wind ×4for Air
    3. Mex
    4. Windfor Air
    5. Wind ×4
    6. Energy storage
    7. ShipyardShipyarddone 2:18 · 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 · 16 steps
    1. Construction ShipCon ship ×3
    2. Mex
    3. HerringMissile corvette
    4. Mex
    5. Naval Construction Turret
    6. Mex ×2
    7. OppressorDestroyerdone 5:11 · typical 5:11
    8. Wind
    9. Mex ×2
    10. Wind
    11. Mex
    12. Wind
    13. Tidal ×2
    14. Wind
    15. Tidal
    16. GuardGuard
  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 · 133 steps
    1. Mex
    2. Tidal
    3. GuardGuard
    4. Wind
    5. RiptideFrigatedone 5:26 · typical 3:52
    6. Tidal ×2
    7. GuardGuard
    8. RiptideFrigate
    9. Tidal
    10. Wind
    11. GuardGuard
    12. Tidal
    13. GuardGuard
    14. Tidal
    15. Wind
    16. Mex
    17. RiptideFrigate
    18. Tidal
    19. Mex
    20. Tidal
    21. Wind
    22. Mex
    23. Tidal
    24. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    25. Tidal
    26. GuardGuard
    27. Death CavalryDeath Cavalry
    28. Wind
    29. Tidal
    30. Radar TowerRadar Tower
    31. RiptideFrigate
    32. Converter
    33. GuardGuard
    34. RiptideFrigate
    35. GuardGuard ×2
    36. HerringMissile corvette ×2
    37. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    38. Converter
    39. HerringMissile corvette
    40. OppressorDestroyer
    41. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    42. Converter
    43. Naval Energy Converter
    44. OppressorDestroyer
    45. RiptideFrigate
    46. Naval Energy Converter
    47. Converter
    48. Naval Energy Converter
    49. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    50. Naval Construction Turret
    51. Dragon's MawDragon's Maw
    52. Advanced Metal ExtractorT2 mexdone 10:16 · typical 9:57
    53. Naval Construction Turret
    54. Converter
    55. Advanced ShipyardAdvanced Shipyarddone 11:02
    56. Bot LabBot Labdone 10:07
    57. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    58. GraverobberGraverobber
    59. Advanced Metal ExtractorT2 mex
    60. GraverobberGraverobber ×2
    61. Construction BotCon bot
    62. GuardGuard
    63. Construction BotCon bot
    64. GruntGrunt ×2
    65. Advanced Construction SubAdvanced Construction Sub
    66. Mex
    67. GruntGrunt
    68. Construction BotCon bot
    69. GruntGrunt
    70. Con turret ×2
    71. GruntGrunt ×2
    72. TrasherTrasher
    73. Advanced Metal ExtractorT2 mex
    74. PathfinderPathfinder
    75. TrasherTrasher
    76. Tidal
    77. TrasherTrasher
    78. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:47
    79. Mex
    80. GruntGrunt
    81. PathfinderPathfinder
    82. Tidal ×2
    83. GruntGrunt
    84. Tidal
    85. GruntGrunt
    86. PathfinderPathfinder
    87. Tidal ×2
    88. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    89. GruntGrunt
    90. Con turret
    91. PathfinderPathfinder
    92. Tidal ×2
    93. ThugThug
    94. Tidal
    95. PathfinderPathfinder
    96. Tidal ×3
    97. Con turret
    98. ThugThug
    99. Tidal ×3
    100. Con turret
    101. Tidal
    102. ThugThug
    103. PhantasmRadar jammer ship
    104. Tidal ×3
    105. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    106. Advanced Metal ExtractorT2 mex
    107. Tidal ×2
    108. Geothermal PowerplantGeodone 14:07
    109. Tidal
    110. Con turret
    111. ThugThug
    112. Tidal ×2
    113. DespotBattleshipnot finished by 15:00
    114. ThugThug
    115. Tidal ×2
    116. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    117. Naval Construction Turret
    118. Twin GuardTwin Guard
    119. Radar TowerRadar Tower
    120. Tidal
    121. Twin GuardTwin Guard
    122. ThugThug
    123. Tidal
    124. Twin GuardTwin Guard
    125. SAMSAM
    126. ThugThug
    127. SAMSAM
    128. Tidal
    129. Naval Construction Turret
    130. ThugThug
    131. Twin GuardTwin Guard
    132. Tidal
    133. ThugThug

Counts are medians over the build's games: half of them build more, half fewer. The example game is El_Turco's (36 OS, 05/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:53 · in 78% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 83% of games
  • Lazarus1 Lazarus from Geofirst at 2:14 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:27 · 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

869 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025252150
5:003701197100
6:005031535254
7:0064751091588
8:00806518251014
9:00967728531605
10:001158639942322
11:001381252133070
12:001635261643806
13:001915471834609
14:002195582755711
15:002494592656551
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

El_Turco

35.6 OS · 05/08/2026

Open source match ↗

9 received units · includes a constructor
887 metal received · 38365 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:45–2:08 · n=867
Riptide3:52Middle 50%: 3:16–4:34 · n=855
Oppressor5:11Middle 50%: 4:15–6:08 · n=840
Advanced Metal Extractor9:57Middle 50%: 9:16–10:53 · n=737

Played most by

EpicTyrannus85games of this buildDamsko66games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build