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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 · 4 steps
    1. Mex ×3
    2. Wind ×2
    3. Tidal ×2
    4. ShipyardShipyarddone 1:30 · 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 · 22 steps
    1. Tidal
    2. Construction ShipCon ship ×2
    3. Wind ×2
    4. Mex
    5. Wind ×2
    6. HerringMissile corvette
    7. Wind ×2
    8. RiptideFrigatedone 2:40 · typical 3:51
    9. Mex ×2
    10. RiptideFrigate
    11. Naval Energy Converter ×2
    12. Mex
    13. RiptideFrigate
    14. Mex
    15. RiptideFrigate
    16. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    17. Wind
    18. OppressorDestroyerdone 5:08 · typical 5:11
    19. GuardGuard
    20. Wind
    21. GuardGuard
    22. Mex
  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 · 119 steps
    1. Mex
    2. Construction ShipCon ship
    3. Wind
    4. HerringMissile corvette
    5. GuardGuard
    6. SlingshotSlingshot
    7. Wind
    8. RiptideFrigate
    9. GuardGuard
    10. ThistleThistle
    11. SlingshotSlingshot
    12. ThistleThistle ×2
    13. RiptideFrigate
    14. Wind
    15. Mex
    16. RiptideFrigate
    17. Wind
    18. Mex
    19. RiptideFrigate
    20. Wind
    21. OppressorDestroyer
    22. BeamerBeamer
    23. SlingshotSlingshot ×2
    24. Construction ShipCon ship
    25. GuardGuard
    26. Construction ShipCon ship
    27. SlingshotSlingshot
    28. Tidal
    29. GuardGuard ×2
    30. HerringMissile corvette
    31. Tidal
    32. BeamerBeamer
    33. ThistleThistle
    34. RiptideFrigate
    35. SlingshotSlingshot
    36. Tidal
    37. RiptideFrigate
    38. SlingshotSlingshot
    39. Tidal
    40. Naval Construction Turret
    41. Naval Energy Converter
    42. RiptideFrigate
    43. Tidal
    44. GuardGuard
    45. Naval Energy Converter
    46. Naval Construction Turret
    47. Tidal
    48. GuardGuard
    49. Wind
    50. Tidal
    51. Naval Energy Storage
    52. Naval Energy Converter
    53. Tidal
    54. Advanced Metal ExtractorT2 mexdone 10:58 · typical 9:58
    55. Wind
    56. Naval Energy Converter
    57. Tidal
    58. Naval Construction Turret
    59. Tidal ×4
    60. Naval Energy Converter
    61. Tidal ×5
    62. HerringMissile corvette
    63. Tidal
    64. Advanced Metal ExtractorT2 mex
    65. Naval Energy Converter
    66. Tidal
    67. HerringMissile corvette
    68. SlingshotSlingshot
    69. Tidal ×2
    70. SlingshotSlingshot
    71. HerringMissile corvette
    72. Tidal
    73. Naval Energy Converter
    74. SlingshotSlingshot
    75. Tidal
    76. OppressorDestroyer
    77. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    78. Tidal
    79. Naval Energy Converter
    80. SlingshotSlingshot
    81. Advanced Metal ExtractorT2 mex
    82. Tidal
    83. OppressorDestroyer
    84. Naval Energy Converter
    85. SlingshotSlingshot
    86. Tidal
    87. SlingshotSlingshot
    88. Naval Energy Converter
    89. Tidal
    90. OppressorDestroyer
    91. Tidal
    92. Naval Energy Converter
    93. SlingshotSlingshot
    94. UrchinUrchin
    95. Tidal
    96. OppressorDestroyer
    97. Tidal
    98. Naval Energy Converter
    99. SlingshotSlingshot
    100. Advanced Metal ExtractorT2 mex
    101. OppressorDestroyer
    102. Tidal
    103. Naval Energy Converter
    104. SlingshotSlingshot
    105. HerringMissile corvette
    106. Tidal
    107. HerringMissile corvette
    108. SlingshotSlingshot
    109. Naval Energy Converter
    110. RiptideFrigate ×2
    111. Tidal
    112. RiptideFrigate
    113. SlingshotSlingshot
    114. RiptideFrigate
    115. Advanced ShipyardAdvanced Shipyarddone 14:53
    116. RiptideFrigate
    117. SlingshotSlingshot
    118. DespotBattleshipnot finished by 15:00
    119. SlingshotSlingshot

Counts are medians over the build's games: half of them build more, half fewer. The example game is [Grump]Grumpiness's (48 OS, 03/10/2026); 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

[Grump]Grumpiness

48.0 OS · 03/10/2026

Open source match ↗

10 received units · includes a constructor
201 metal received · 43323 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