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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 (93%)

#naval #eco · 1589 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1793 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:56

  1. Open 3 mex, then send com to sea to build Shipyard by 1:56.
  2. Add tidal generators, wind and more mex to fund the shipyard.
  3. Pump Riptide first, then Oppressor to contest enemy sea entry.
  4. Get T2 constructor out to start scaling the naval economy.
  5. Transition into Advanced Metal Extractor as the economy phase begins.

Phase by phase

TYPICAL OF ITS 1589 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 ~1:56, middle half 1:43–2:07

    Some games also: Guard (30%)

    By 1:39 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 6 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind ×2
    4. Windfor Air
    5. Energy storage
    6. ShipyardShipyarddone 1:51 · typical 1:56
  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 (46%) · mex (38%) · wind (37%) · submarine (36%) · wind (36%)

    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. Construction ShipCon ship
    5. Con turret
    6. RiptideFrigatedone 2:54 · typical 3:50
    7. Mex ×3
    8. RiptideFrigate
    9. Mex
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. OppressorDestroyerdone 4:53 · typical 5:15
    12. Mex
    13. Wind ×3
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Wind ×2
    16. UrchinUrchin
    17. Wind
    18. Mex
    19. Wind
    20. HerringMissile corvette
    21. Mex
    22. Wind
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine8Wind
    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 (49%) · Guard (47%) · tidal (39%) · Radar Tower (39%) · wind (34%)

    By 10:00 in all: 9 mex · 10 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 141 steps
    1. Wind
    2. Death CavalryDeath Cavalry
    3. Wind ×2
    4. Radar TowerRadar Tower
    5. Wind
    6. GuardGuard
    7. RiptideFrigate
    8. Wind
    9. ThistleThistle
    10. Wind ×2
    11. RiptideFrigate
    12. Wind ×3
    13. RiptideFrigate
    14. Wind ×2
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Wind
    17. OppressorDestroyer
    18. Wind
    19. Wind
    20. Wind
    21. Wind
    22. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    23. Wind
    24. Wind
    25. Wind
    26. Wind ×2
    27. Wind
    28. HerringMissile corvette
    29. Wind
    30. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    31. Wind
    32. Wind
    33. Wind
    34. Death CavalryDeath Cavalry
    35. Wind
    36. Wind
    37. Wind
    38. Wind
    39. Wind
    40. Wind
    41. Wind
    42. RiptideFrigate
    43. Wind
    44. Wind
    45. Wind
    46. Wind ×3
    47. Wind
    48. RiptideFrigate
    49. Wind
    50. Wind
    51. Advanced Metal ExtractorT2 mexdone 9:59 · typical 9:58
    52. Wind ×2
    53. Wind
    54. Wind ×2
    55. RiptideFrigate
    56. Wind
    57. Wind
    58. Converter
    59. Naval Construction Turret
    60. Converter ×2
    61. Wind
    62. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    63. Wind
    64. Advanced Metal ExtractorT2 mex
    65. Converter
    66. OppressorDestroyer
    67. Wind
    68. Converter ×2
    69. Wind
    70. Converter ×2
    71. Wind
    72. Advanced Metal ExtractorT2 mex
    73. HerringMissile corvette
    74. Converter
    75. Wind
    76. Death CavalryDeath Cavalry
    77. Naval Construction Turret
    78. Converter
    79. Wind
    80. Naval Construction Turret
    81. Converter
    82. RiptideFrigate
    83. Wind
    84. Converter
    85. Wind
    86. RiptideFrigate
    87. Advanced ShipyardAdvanced Shipyarddone 12:37
    88. Wind
    89. OppressorDestroyer
    90. HerringMissile corvette
    91. Death CavalryDeath Cavalry ×2
    92. Converter
    93. Wind ×2
    94. Converter
    95. Wind ×2
    96. Converter
    97. Wind ×2
    98. Converter
    99. Death CavalryDeath Cavalry
    100. Wind
    101. Converter
    102. Wind
    103. DespotBattleshipdone 13:51
    104. Construction ShipCon ship
    105. Wind
    106. Converter
    107. Wind
    108. Converter
    109. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    110. Wind ×2
    111. Converter
    112. Wind
    113. Converter
    114. Wind ×2
    115. Converter
    116. Wind
    117. Shark's TeethShark's Teeth ×3
    118. Wind
    119. Shark's TeethShark's Teeth ×4
    120. Wind
    121. Shark's TeethShark's Teeth
    122. DespotBattleship
    123. Shark's TeethShark's Teeth ×2
    124. Wind
    125. Shark's TeethShark's Teeth
    126. Wind
    127. Shark's TeethShark's Teeth
    128. Wind
    129. Wind
    130. Shark's TeethShark's Teeth
    131. Wind
    132. Wind ×2
    133. Wind
    134. Death CavalryDeath Cavalry
    135. Wind
    136. Wind
    137. Wind
    138. Wind
    139. Wind ×2
    140. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    141. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is ToStupidToName's (33 OS, 26/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:46 · in 77% of games

You get

  • Finch1 Finch from Airfirst at 2:00 · in 80% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 64% of games
  • Construction Bot1 Con bot from Geofirst at 2:26 · in 70% of games
  • Hercules1 Light transport from Airfirst at 2:34 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:08 · in 89% 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

1793 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003716176101
6:005045487280
7:006492972592
8:00807016651001
9:00967926141532
10:001153637242325
11:001368547443105
12:001625058553875
13:001895168784645
14:002167379245691
15:002456588566520
WHAT THE NUMBERS SAY

Standard Beach sea play has the lowest team win rate of these builds and destroys far less enemy metal early than it loses eco time.

  • + Metal produced climbs to 24945 by 15:00, the highest of all six roles.
  • + Riptide and Oppressor together make 63% of army, a focused naval composition.
  • − Enemy metal destroyed is only 200 by 5:00, barely contesting early sea.
  • − T2 factory only reached in 35% of games, behind other roles' T2 timing.
THE EXAMPLE YOU ARE READING

ToStupidToName

32.7 OS · 26/08/2026

Open source match ↗

5 received units · includes a constructor
0 metal received · 25060 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:43–2:07 · n=1790
Riptide3:50Middle 50%: 3:12–4:34 · n=1747
Oppressor5:15Middle 50%: 4:29–6:06 · n=1726
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=1517

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildPRO_HYDRA63games of this build