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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 · 871 distinct matches · 111 players · 83% of Cortex Beach sea games · team won 54% of 943 · 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 871 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 Turbine2Windfor allies
    • Wind Turbine2Wind
    • Energy Storage1Energy storage
    Order
    1. ShipyardShipyard after 3 mex, 2 wind, 1 energy storagedone ~1:57, middle half 1:43–2:07

    By 1:40 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 5 steps
    1. Mex ×3
    2. Solar
    3. Wind ×3
    4. Energy storage
    5. ShipyardShipyarddone 1:53 · 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 (45%) · submarine (39%) · wind (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 · 18 steps
    1. Construction ShipCon ship ×2
    2. HerringMissile corvette ×2
    3. Wind ×2for Air
    4. Mex
    5. OrcaSubmarinedone 3:43
    6. Windfor Air
    7. Tidal
    8. Naval Energy Converter
    9. Mex
    10. Mex
    11. Mex
    12. RiptideFrigate ×2done 4:05 · typical 3:51
    13. Mex
    14. Death CavalryDeath Cavalry
    15. Con turret
    16. UrchinUrchin
    17. Mex ×2
    18. OppressorDestroyerdone 5:44 · typical 5:11
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine9Wind
    Builders
    • Construction Ship1 Con ship
    • Death Cavalry1 Death Cavalry
    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 (40%) · 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 · 118 steps
    1. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    2. GuardGuard
    3. Wind
    4. RiptideFrigate
    5. Wind
    6. OrcaSubmarine
    7. Wind
    8. Death CavalryDeath Cavalry
    9. Wind ×4
    10. Naval Construction Turret
    11. OppressorDestroyer
    12. Wind ×2
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Wind
    15. UrchinUrchin
    16. Con turret
    17. Wind
    18. Tidal
    19. Wind ×3
    20. Tidal
    21. Wind ×4
    22. Tidal
    23. Death CavalryDeath Cavalry
    24. Wind
    25. Tidal
    26. Wind ×3
    27. HerringMissile corvette
    28. Naval Construction Turret
    29. Con turret
    30. Converter
    31. OppressorDestroyer
    32. Advanced Metal ExtractorT2 mexdone 9:10 · typical 9:58
    33. Converter
    34. Energy storage
    35. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    36. Tidal
    37. Converter
    38. Tidal
    39. Converter ×2
    40. BeholderBeholder
    41. Energy storage
    42. Tidal
    43. Converter
    44. Dragon's MawDragon's Maw
    45. Advanced Metal ExtractorT2 mex
    46. Energy storage
    47. Wind
    48. Tidal
    49. Wind ×3
    50. Death CavalryDeath Cavalry
    51. SupporterGunboat ×2
    52. Wind
    53. Energy storage
    54. SupporterGunboat
    55. Advanced Metal ExtractorT2 mex
    56. SupporterGunboat
    57. Wind
    58. SupporterGunboat
    59. Wind
    60. SupporterGunboat
    61. Wind
    62. SupporterGunboat ×3
    63. Wind
    64. Wind
    65. SupporterGunboat
    66. Wind
    67. SupporterGunboat
    68. Wind
    69. Wind
    70. SupporterGunboat
    71. Wind
    72. SupporterGunboat
    73. Wind
    74. SupporterGunboat
    75. Wind
    76. SupporterGunboat
    77. Converter
    78. SupporterGunboat
    79. Death CavalryDeath Cavalry
    80. Wind
    81. Converter
    82. Wind
    83. Death CavalryDeath Cavalry
    84. Advanced Metal ExtractorT2 mex
    85. Converter
    86. Death CavalryDeath Cavalry
    87. Converter
    88. RiptideFrigate
    89. Wind
    90. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    91. RiptideFrigate
    92. Wind
    93. UrchinUrchin
    94. RiptideFrigate
    95. Naval Construction Turret
    96. Wind ×2
    97. OppressorDestroyer
    98. Wind
    99. SlingshotSlingshot
    100. Naval Construction Turret
    101. Wind ×5
    102. RiptideFrigate ×2
    103. Wind
    104. OppressorDestroyer
    105. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    106. Wind
    107. RiptideFrigate ×2
    108. OppressorDestroyer
    109. Death CavalryDeath Cavalry ×4
    110. Naval Construction Turret
    111. RiptideFrigate
    112. Naval Construction Turret
    113. OppressorDestroyer
    114. Naval Construction Turret
    115. RiptideFrigate
    116. OppressorDestroyer
    117. RiptideFrigate
    118. OppressorDestroyer

Counts are medians over the build's games: half of them build more, half fewer. The example game is Godmother13's (38 OS, 02/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 78% of games

You get

  • Finch1 Finch from Airfirst at 1:59 · 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 2:27 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:35 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:10 · 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

943 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00157000
4:002537051
5:003709197100
6:005035533261
7:0064751080591
8:00803818141031
9:00966427901581
10:001155639232340
11:001375250003070
12:001628061193825
13:001906771064611
14:002181181625667
15:002487692576531
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

Godmother13

38.3 OS · 02/10/2026

Open source match ↗

5 received units · includes a constructor
123 metal received · 149573 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:43–2:07 · n=941
Riptide3:51Middle 50%: 3:15–4:34 · n=925
Oppressor5:11Middle 50%: 4:18–6:08 · n=907
Advanced Metal Extractor9:58Middle 50%: 9:17–10:55 · n=797

Played most by

EpicTyrannus94games of this buildDamsko68games of this buildWaboum64games of this buildPRO_HYDRA61games of this buildKbot_my_Ahole52games of this build