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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 · 2 steps
    1. Mex ×3
    2. ShipyardShipyarddone 1:09 · 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. Tidal
    2. Construction ShipCon ship
    3. Tidal ×4
    4. Wind ×2for Air
    5. HerringMissile corvette
    6. Windfor Air
    7. Wind
    8. RiptideFrigatedone 2:34 · typical 3:51
    9. Mex
    10. OrcaSubmarinedone 3:24
    11. Mex
    12. RiptideFrigate
    13. Mex ×2
    14. RiptideFrigate
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Mex
    17. GuardGuard
    18. Wind
    19. Mex
    20. UrchinUrchin
    21. Construction ShipCon ship
    22. Wind
  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 · 103 steps
    1. Wind
    2. Death CavalryDeath Cavalry
    3. Wind
    4. RiptideFrigate
    5. Con turret
    6. HerringMissile corvette
    7. OrcaSubmarine
    8. RiptideFrigate
    9. Mex
    10. Wind
    11. OppressorDestroyerfor Frontdone 8:10 · typical 5:09
    12. Wind
    13. Advanced Metal ExtractorT2 mexdone 7:53 · typical 9:57
    14. Wind ×3
    15. Advanced Metal ExtractorT2 mex
    16. Wind
    17. RiptideFrigatefor Front
    18. JellyfishJellyfish
    19. Wind
    20. ThistleThistle
    21. Wind
    22. Advanced Metal ExtractorT2 mex
    23. Construction ShipCon ship
    24. Wind
    25. Death CavalryDeath Cavalry
    26. Wind
    27. RiptideFrigatefor Front
    28. HerringMissile corvettefor Front
    29. Wind
    30. Construction ShipCon ship
    31. Wind
    32. Con turret
    33. RiptideFrigatefor Front
    34. Advanced Metal ExtractorT2 mex
    35. OppressorDestroyerfor Front
    36. Con turret
    37. Wind
    38. OrcaSubmarine
    39. Wind ×7
    40. OrcaSubmarine
    41. Wind ×4
    42. Naval Construction Turret
    43. Wind
    44. OrcaSubmarine
    45. Wind ×3
    46. Naval Construction Turret
    47. Wind
    48. RiptideFrigate
    49. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    50. Wind ×2
    51. Naval Construction Turret
    52. Wind ×2
    53. Construction ShipCon ship
    54. Wind
    55. Death CavalryDeath Cavalry
    56. RiptideFrigate
    57. Wind
    58. OrcaSubmarine
    59. Wind
    60. Energy storage
    61. OrcaSubmarine
    62. Converter
    63. RiptideFrigate
    64. OrcaSubmarine
    65. Converter
    66. RiptideFrigate
    67. Converter
    68. HerringMissile corvette
    69. Converter
    70. RiptideFrigate ×2
    71. OppressorDestroyer
    72. Mex
    73. RiptideFrigate
    74. Wind ×2
    75. Death CavalryDeath Cavalry
    76. Wind
    77. RiptideFrigate
    78. Wind
    79. HerringMissile corvette
    80. Wind ×2
    81. RiptideFrigate
    82. Wind
    83. OppressorDestroyer
    84. Wind ×3
    85. RiptideFrigate
    86. Wind
    87. Death CavalryDeath Cavalry
    88. Wind
    89. RiptideFrigate
    90. Wind ×2
    91. HerringMissile corvette
    92. Wind
    93. RiptideFrigate
    94. Wind
    95. OppressorDestroyer
    96. Wind
    97. RiptideFrigate
    98. Wind
    99. Advanced Metal ExtractorT2 mex
    100. Wind
    101. HerringMissile corvette
    102. Wind
    103. HerringMissile corvette

Counts are medians over the build's games: half of them build more, half fewer. The example game is MrCoolPotato's (43 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

MrCoolPotato

43.2 OS · 12/09/2026

Open source match ↗

29 received units · includes a constructor
45 metal received · 17340 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