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Beach sea / Cortex / Economy first / OBSERVED BUILD

Standard beach sea

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 · 729 distinct matches · 102 players · 84% of Cortex Beach sea games · team won 55% of 789 · 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 729 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 · 4 steps
    1. Mex ×3
    2. Wind ×4
    3. Energy storage
    4. ShipyardShipyarddone 1:51 · typical 1:57
  2. 2

    Shipyard to 5:00

    Economy
    • Metal Extractor5Mex
    • Tidal Generator1Tidal
    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 (42%) · wind (41%) · submarine (40%) · con turret (35%) · gunboat (34%)

    By 5:00 in all: 8 mex · 3 wind · 2 tidal · 1 energy storage

    The example game in this phase · 22 steps
    1. Construction ShipCon ship ×2
    2. RiptideFrigatedone 2:24 · typical 3:51
    3. Mex
    4. RiptideFrigate
    5. Mex ×2
    6. Death CavalryDeath Cavalry
    7. Tidal
    8. Mex ×2
    9. Tidal
    10. Construction ShipCon ship
    11. Tidal
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. Wind
    14. RiptideFrigate
    15. Tidal
    16. Naval Construction Turret
    17. Wind
    18. Naval Energy Converter
    19. RiptideFrigate
    20. OppressorDestroyerdone 5:15 · typical 5:09
    21. Wind
    22. Naval Energy Converter
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine10Wind
    Builders
    • Death Cavalry1 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    • Herring2 Missile corvette
    Other
    • Naval Radar / Sonar Tower1 Naval Radar / Sonar Tower

    Some games also: Urchin (50%) · Naval Construction Turret (47%) · Guard (47%) · Radar Tower (41%) · tidal (38%)

    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 · 108 steps
    1. Wind
    2. RiptideFrigate
    3. Naval Energy Converter
    4. Wind
    5. RiptideFrigate
    6. Naval Energy Converter
    7. Wind
    8. RiptideFrigate
    9. Mex
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. Wind
    12. Mex
    13. RiptideFrigate
    14. Wind
    15. RiptideFrigate
    16. Wind
    17. RiptideFrigate
    18. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    19. Wind
    20. HerringMissile corvette
    21. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    22. HerringMissile corvette
    23. Wind
    24. HerringMissile corvette ×2
    25. Wind
    26. Construction ShipCon ship
    27. HerringMissile corvette
    28. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    29. Wind
    30. HerringMissile corvette
    31. OppressorDestroyer
    32. Advanced Metal ExtractorT2 mexdone 9:37 · typical 9:57
    33. Wind ×2
    34. Naval Construction Turret
    35. RiptideFrigate
    36. Wind ×2
    37. ThistleThistle
    38. Advanced Metal ExtractorT2 mex
    39. RiptideFrigate
    40. GuardGuard
    41. Naval Construction Turret
    42. Wind
    43. GuardGuard
    44. Naval Construction Turret
    45. Radar TowerRadar Tower
    46. Wind
    47. Naval Construction Turret
    48. GuardGuard ×2
    49. Wind
    50. Bot LabBot Labdone 11:00
    51. Advanced Metal ExtractorT2 mex
    52. Wind
    53. Advanced ShipyardAdvanced Shipyarddone 12:32
    54. SupporterGunboat ×2
    55. Construction BotCon bot
    56. SupporterGunboat
    57. Wind
    58. SupporterGunboat ×3
    59. GruntGrunt ×10
    60. Wind
    61. Advanced Construction SubAdvanced Construction Sub
    62. GruntGrunt
    63. Tidal ×2
    64. Advanced Metal ExtractorT2 mex
    65. Wind
    66. PathfinderPathfinder
    67. Tidal
    68. PathfinderPathfinder ×2
    69. Tidal
    70. Wind
    71. PathfinderPathfinder
    72. Tidal
    73. PathfinderPathfinder
    74. Con turret
    75. Tidal
    76. Wind
    77. Tidal
    78. GruntGrunt
    79. Tidal
    80. Wind
    81. GruntGrunt
    82. Con turret
    83. Advanced Construction SubAdvanced Construction Sub
    84. GruntGrunt
    85. Tidal ×2
    86. GruntGrunt
    87. Wind
    88. GruntGrunt
    89. SAMSAM
    90. GruntGrunt
    91. Tidal
    92. Wind
    93. GruntGrunt
    94. Tidal
    95. Naval Fusion ReactorNaval Fusion Reactornot finished by 15:00
    96. GruntGrunt
    97. Twin GuardTwin Guard
    98. Naval Construction Turret
    99. GruntGrunt
    100. Tidal
    101. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    102. Naval Construction Turret
    103. GruntGrunt
    104. Tidal
    105. Twin GuardTwin Guard
    106. GruntGrunt
    107. Wind
    108. Naval Construction Turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is kbssilks's (35 OS, 21/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:54 · in 79% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 81% 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 2:29 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:35 · in 31% 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

789 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156300
4:002522050
5:003699194100
6:005026532250
7:0064731100588
8:00808018571041
9:00968328851621
10:001160240232345
11:001382252273090
12:001635262003851
13:001911172574621
14:002186583045721
15:002487692656531
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

kbssilks

35.2 OS · 21/08/2026

Open source match ↗

6 received units · includes a constructor
2061 metal received · 60032 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=787
Riptide3:51Middle 50%: 3:15–4:31 · n=782
Oppressor5:09Middle 50%: 4:11–6:07 · n=764
Advanced Metal Extractor9:57Middle 50%: 9:15–10:53 · n=667

Played most by

EpicTyrannus68games of this buildDamsko64games of this buildWaboum64games of this buildPRO_HYDRA54games of this buildMrCoolPotato51games of this build