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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 · 806 distinct matches · 107 players · 84% of Cortex Beach sea games · team won 55% of 871 · 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 806 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. Tidal ×2
    3. ShipyardShipyarddone 1:23 · 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 · 23 steps
    1. Tidal
    2. SupporterGunboat
    3. Tidal
    4. SupporterGunboat
    5. Tidal
    6. SupporterGunboat ×2
    7. Construction ShipCon ship
    8. Wind ×3for Air
    9. Construction ShipCon ship
    10. Mex
    11. OrcaSubmarinedone 3:33
    12. Mex ×2
    13. Converter
    14. Mex
    15. HerringMissile corvette
    16. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    17. Con turret
    18. RiptideFrigatedone 4:14 · typical 3:52
    19. OrcaSubmarine
    20. Mex ×2
    21. Wind
    22. RiptideFrigate
    23. Wind
  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 · 105 steps
    1. Wind ×2
    2. HerringMissile corvette
    3. Wind
    4. UrchinUrchin
    5. Wind
    6. RiptideFrigate
    7. Wind ×2
    8. RiptideFrigate
    9. Wind
    10. GuardGuard
    11. Mex
    12. GuardGuard
    13. Wind
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Converter
    16. Mex
    17. OppressorDestroyerdone 6:59 · typical 5:11
    18. Converter ×2
    19. Mex
    20. Energy storage
    21. OppressorDestroyer
    22. Con turret ×2
    23. Advanced Metal ExtractorT2 mexdone 8:00 · typical 9:57
    24. Wind
    25. Construction ShipCon ship
    26. Wind
    27. Construction ShipCon ship
    28. Wind ×2
    29. Advanced Metal ExtractorT2 mex
    30. Construction ShipCon ship
    31. Wind
    32. HerringMissile corvette
    33. Wind ×3
    34. HerringMissile corvette
    35. Advanced Metal ExtractorT2 mex
    36. HerringMissile corvette
    37. Wind
    38. RiptideFrigate
    39. Converter
    40. RiptideFrigate
    41. Wind ×2
    42. Tidal
    43. Wind
    44. Aircraft PlantAircraft Plantdone 9:36
    45. Tidal ×2
    46. StorkLight transport
    47. Naval Construction Turret
    48. Wind
    49. StorkLight transport
    50. Wind
    51. ShipyardShipyarddone 9:56
    52. Advanced Metal ExtractorT2 mex
    53. StorkLight transport
    54. Wind
    55. RiptideFrigate
    56. StorkLight transport
    57. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    58. Wind
    59. RiptideFrigate ×2
    60. Wind
    61. HerringMissile corvette
    62. OrcaSubmarine
    63. OppressorDestroyer
    64. Wind
    65. Death CavalryDeath Cavalry
    66. RiptideFrigate
    67. Wind
    68. RiptideFrigate ×2
    69. UrchinUrchin
    70. HerringMissile corvette
    71. Wind
    72. Naval Construction Turret ×2
    73. OrcaSubmarine
    74. Naval Construction Turret
    75. Advanced Metal ExtractorT2 mex
    76. Wind
    77. OppressorDestroyer
    78. Wind
    79. Death CavalryDeath Cavalry
    80. RiptideFrigate
    81. Wind
    82. RiptideFrigate ×3
    83. Wind
    84. RiptideFrigate
    85. Wind
    86. Naval Construction Turret
    87. HerringMissile corvette
    88. Naval Construction Turret ×2
    89. Wind
    90. OrcaSubmarine
    91. SlingshotSlingshot ×2
    92. Tidal ×2
    93. Wind
    94. OppressorDestroyer
    95. Tidal
    96. Advanced ShipyardAdvanced Shipyarddone 14:52
    97. Tidal
    98. Death CavalryDeath Cavalry
    99. Tidal
    100. SlingshotSlingshot
    101. Wind
    102. Tidal ×4
    103. Naval Construction Turret
    104. Advanced Construction SubAdvanced Construction Sub
    105. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is Immort's (55 OS, 30/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:53 · in 79% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 83% 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 2:28 · 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

871 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025282150
5:003701197100
6:005032535251
7:0064751096588
8:00807018261019
9:00968228541610
10:001159139942334
11:001381852133090
12:001635661643821
13:001917072004611
14:002196183045717
15:002495292706561
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

Immort

55.1 OS · 30/09/2026

Open source match ↗

5 received units · includes a constructor
698 metal received · 30673 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=869
Riptide3:52Middle 50%: 3:16–4:34 · n=857
Oppressor5:11Middle 50%: 4:15–6:08 · n=842
Advanced Metal Extractor9:57Middle 50%: 9:16–10:53 · n=739

Played most by

EpicTyrannus85games of this buildDamsko66games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build