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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 ×2
    3. Windfor Air
    4. ShipyardShipyarddone 1:31 · 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 · 18 steps
    1. Wind
    2. RiptideFrigatedone 1:52 · typical 3:51
    3. Wind ×2for Air
    4. Construction ShipCon ship
    5. RiptideFrigate
    6. Mex
    7. Construction ShipCon ship
    8. GruntGrunt
    9. OrcaSubmarinedone 3:46
    10. Mex ×2
    11. Mex
    12. HerringMissile corvette
    13. Mex
    14. RiptideFrigate
    15. Con turret
    16. Mex
    17. UrchinUrchin
    18. 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 (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 · 116 steps
    1. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    2. Wind
    3. OppressorDestroyerdone 7:54 · typical 5:09
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. Wind ×2
    6. Tidal
    7. Wind
    8. Tidal
    9. Naval Construction Turret
    10. Wind
    11. GuardGuard ×2
    12. Wind
    13. Radar TowerRadar Tower
    14. Tidal
    15. Wind
    16. Tidal
    17. RiptideFrigate
    18. Wind
    19. Tidal
    20. Wind
    21. RiptideFrigate
    22. Tidal
    23. Wind
    24. Tidal
    25. Advanced Metal ExtractorT2 mexdone 9:08 · typical 9:57
    26. Wind
    27. Tidal
    28. Wind
    29. RiptideFrigate
    30. Tidal
    31. Wind
    32. Twin GuardTwin Guard
    33. Tidal
    34. Wind ×2
    35. RiptideFrigate
    36. HerringMissile corvette
    37. Wind
    38. HerringMissile corvette
    39. Wind
    40. HerringMissile corvette
    41. Wind
    42. Advanced Metal ExtractorT2 mex
    43. HerringMissile corvette ×2
    44. RiptideFrigate
    45. Advanced Metal ExtractorT2 mex
    46. RiptideFrigate ×2
    47. Advanced Metal ExtractorT2 mex
    48. RiptideFrigate
    49. HerringMissile corvette
    50. Death CavalryDeath Cavalry
    51. Con turret
    52. Wind
    53. Death CavalryDeath Cavalry
    54. HerringMissile corvette
    55. Wind
    56. OppressorDestroyer
    57. Wind
    58. Con turret
    59. Converter
    60. Advanced Metal ExtractorT2 mex
    61. Converter
    62. Wind
    63. OppressorDestroyer
    64. Wind
    65. Converter
    66. Wind ×2
    67. RiptideFrigate
    68. Converter
    69. Wind
    70. HerringMissile corvette
    71. Wind
    72. Converter
    73. OppressorDestroyer
    74. Wind
    75. Converter
    76. Wind
    77. Converter
    78. Wind
    79. Dragon's MawDragon's Maw
    80. Wind
    81. OppressorDestroyer
    82. Dragon's MawDragon's Maw
    83. Wind
    84. Advanced Metal ExtractorT2 mex
    85. Wind
    86. RiptideFrigate
    87. Wind
    88. HerringMissile corvette
    89. Construction ShipCon ship
    90. Con turret
    91. Wind
    92. Construction ShipCon ship
    93. Dragon's MawDragon's Maw
    94. Wind
    95. Con turret
    96. Wind
    97. Advanced ShipyardAdvanced Shipyarddone 13:48
    98. Wind ×4
    99. Advanced Construction SubAdvanced Construction Sub
    100. Mex
    101. Wind ×2
    102. PathfinderPathfinder
    103. Wind
    104. PathfinderPathfinder
    105. Wind
    106. Mex
    107. PathfinderPathfinder
    108. Wind
    109. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:54
    110. MessengerCruise missile shipdone 14:44
    111. Wind
    112. Con turret
    113. Wind
    114. PathfinderPathfinder
    115. Dragon's MawDragon's Maw
    116. PathfinderPathfinder

Counts are medians over the build's games: half of them build more, half fewer. The example game is JelousOfMyEco's (37 OS, 12/09/2026); 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

JelousOfMyEco

37.0 OS · 12/09/2026

Open source match ↗

12 received units · includes a constructor
966 metal received · 41646 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