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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 · 812 distinct matches · 107 players · 84% of Cortex Beach sea games · team won 55% of 877 · 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 812 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 1:44–2:08

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

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

Counts are medians over the build's games: half of them build more, half fewer. The example game is Damsko's (40 OS, 30/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 79% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:28 · 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

877 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025312150
5:003701197100
6:005032534254
7:0064761096590
8:00807618331031
9:00968328541610
10:001159239942340
11:001382252133090
12:001635261643821
13:001911472004611
14:002195382755717
15:002492992706561
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

Damsko

39.5 OS · 30/09/2026

Open source match ↗

7 received units · includes a constructor
211 metal received · 31814 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:44–2:08 · n=875
Riptide3:52Middle 50%: 3:16–4:34 · n=863
Oppressor5:11Middle 50%: 4:16–6:08 · n=848
Advanced Metal Extractor9:58Middle 50%: 9:16–10:53 · n=743

Played most by

EpicTyrannus85games of this buildDamsko67games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build