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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 · 755 distinct matches · 104 players · 84% of Cortex Beach sea games · team won 55% of 817 · 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 755 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 · 3 steps
    1. Mex ×3
    2. Wind ×3
    3. ShipyardShipyarddone 1:28 · 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 (43%) · wind (40%) · submarine (39%) · con turret (35%) · gunboat (35%)

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

    The example game in this phase · 16 steps
    1. HerringMissile corvette
    2. RiptideFrigatedone 2:07 · typical 3:52
    3. Wind ×5
    4. Construction ShipCon ship ×2
    5. RiptideFrigate
    6. Mex ×2
    7. Converter
    8. OppressorDestroyerdone 4:30 · typical 5:08
    9. Mex
    10. Mex
    11. Mex
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. Con turret
    14. Mex
    15. Death CavalryDeath Cavalry
    16. Mex
  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 (48%) · 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 · 99 steps
    1. Construction ShipCon ship
    2. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    3. RiptideFrigate ×2
    4. UrchinUrchin
    5. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    6. OppressorDestroyer
    7. Tidal
    8. Wind
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. Wind
    11. Tidal
    12. Wind
    13. Advanced Metal ExtractorT2 mexdone 8:19 · typical 9:57
    14. Wind ×2
    15. Tidal
    16. Wind ×2
    17. Mex
    18. Wind
    19. Tidal
    20. Wind ×5
    21. Death CavalryDeath Cavalry
    22. Wind
    23. Mex
    24. Wind ×5
    25. Advanced Metal ExtractorT2 mex
    26. Wind ×3
    27. RiptideFrigate
    28. Mex
    29. Wind
    30. UrchinUrchin
    31. RiptideFrigate
    32. OppressorDestroyer
    33. Advanced Metal ExtractorT2 mex
    34. ShipyardShipyarddone 9:55
    35. Con turret
    36. Wind
    37. RiptideFrigate ×2
    38. Wind
    39. RiptideFrigate
    40. Wind ×3
    41. Naval Construction Turret
    42. Wind
    43. Advanced Metal ExtractorT2 mex
    44. Wind ×4
    45. Death CavalryDeath Cavalry
    46. Wind ×2
    47. HerringMissile corvette
    48. Wind
    49. Naval Construction Turret
    50. Wind ×7
    51. Death CavalryDeath Cavalry
    52. Wind ×4
    53. RiptideFrigate
    54. Wind ×4
    55. RiptideFrigate
    56. Death CavalryDeath Cavalry
    57. Wind ×2
    58. RiptideFrigate ×2
    59. Wind
    60. Death CavalryDeath Cavalry
    61. Wind
    62. OppressorDestroyer
    63. Wind
    64. RiptideFrigate
    65. Death CavalryDeath Cavalry
    66. HerringMissile corvette
    67. Wind
    68. RiptideFrigate
    69. Construction ShipCon ship
    70. Wind
    71. OppressorDestroyer
    72. Construction ShipCon ship
    73. Naval Construction Turret
    74. Wind
    75. Naval Construction Turret
    76. Wind
    77. Death CavalryDeath Cavalry
    78. Wind
    79. RiptideFrigate
    80. Naval Construction Turret
    81. Wind
    82. Naval Construction Turret
    83. OppressorDestroyer
    84. Advanced ShipyardAdvanced Shipyarddone 13:51
    85. Wind
    86. RiptideFrigate
    87. Advanced Construction SubAdvanced Construction Sub
    88. Wind
    89. Con turret ×2
    90. PathfinderPathfinder
    91. Wind
    92. PathfinderPathfinder
    93. Construction ShipCon ship
    94. PathfinderPathfinder
    95. Wind
    96. Construction ShipCon ship
    97. Wind ×2
    98. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    99. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is [crd]sisa's (42 OS, 20/09/2026); 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 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:14 · in 61% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 69% 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

817 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156300
4:002521050
5:003696195100
6:005025535251
7:0064691104588
8:00806518551031
9:00967428621610
10:001158640232345
11:001379252273101
12:001635262003831
13:001911472574611
14:002195582755691
15:002492992706500
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

[crd]sisa

42.3 OS · 20/09/2026

Open source match ↗

8 received units · includes a constructor
132 metal received · 6461 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=815
Riptide3:52Middle 50%: 3:16–4:33 · n=809
Oppressor5:08Middle 50%: 4:11–6:07 · n=791
Advanced Metal Extractor9:57Middle 50%: 9:16–10:53 · n=695

Played most by

EpicTyrannus74games of this buildDamsko66games of this buildWaboum64games of this buildPRO_HYDRA57games of this buildMrCoolPotato51games of this build