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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 1:58 · 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. Construction ShipCon ship ×2
    2. Tidal
    3. HerringMissile corvette
    4. Tidal
    5. Mex ×2
    6. RiptideFrigatedone 3:08 · typical 3:50
    7. Con turret
    8. Mex ×2
    9. RiptideFrigate
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. Mex
    12. OppressorDestroyerdone 4:43 · typical 5:15
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. UrchinUrchin
    15. Mex
    16. Wind
    17. Mex
    18. Wind ×3
    19. RiptideFrigate
    20. Wind
    21. Radar TowerRadar Tower
    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 · 148 steps
    1. ThistleThistle
    2. GuardGuard
    3. Wind
    4. Death CavalryDeath Cavalry
    5. Wind
    6. Wind
    7. Wind
    8. Wind
    9. Wind
    10. Wind
    11. RiptideFrigate
    12. Wind
    13. GuardGuard
    14. Wind
    15. GuardGuard
    16. Wind
    17. HerringMissile corvette
    18. Wind
    19. GuardGuard
    20. RiptideFrigate
    21. Wind
    22. GuardGuard
    23. Wind
    24. GuardGuard
    25. Wind
    26. OppressorDestroyer
    27. Wind
    28. Wind ×2
    29. Wind
    30. Wind ×2
    31. Wind
    32. Wind ×2
    33. Wind
    34. Wind
    35. Wind
    36. Wind
    37. RiptideFrigate
    38. Wind
    39. Wind ×2
    40. Wind
    41. Wind ×2
    42. Wind
    43. Death CavalryDeath Cavalry
    44. Wind
    45. Wind
    46. Wind
    47. Wind
    48. Wind
    49. Wind
    50. RiptideFrigate
    51. Wind
    52. Wind ×2
    53. Wind
    54. Wind
    55. HerringMissile corvette
    56. Wind
    57. Wind
    58. RiptideFrigate
    59. Wind ×2
    60. Wind
    61. Wind
    62. OppressorDestroyer
    63. Wind
    64. Wind
    65. Advanced Metal ExtractorT2 mexdone 10:33 · typical 9:58
    66. Wind
    67. Wind
    68. Converter ×2
    69. Wind
    70. Wind
    71. RiptideFrigate
    72. Wind
    73. Wind
    74. Wind
    75. Advanced Metal ExtractorT2 mex
    76. Wind
    77. Death CavalryDeath Cavalry
    78. Wind
    79. Wind ×3
    80. RiptideFrigate
    81. Wind
    82. Wind ×2
    83. HerringMissile corvette
    84. Naval Construction Turret
    85. Wind
    86. Wind
    87. Wind ×2
    88. Wind
    89. Advanced Metal ExtractorT2 mex
    90. RiptideFrigate
    91. Wind
    92. Wind
    93. Naval Construction Turret
    94. Wind ×2
    95. Naval Construction Turret
    96. Wind
    97. Wind
    98. Wind ×2
    99. OppressorDestroyer
    100. Wind
    101. Wind
    102. Wind
    103. Wind
    104. Wind
    105. RiptideFrigate
    106. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    107. Wind
    108. Wind
    109. RiptideFrigate
    110. Wind
    111. Wind
    112. Death CavalryDeath Cavalry
    113. HerringMissile corvette
    114. Wind
    115. HerringMissile corvette
    116. Wind
    117. HerringMissile corvette
    118. Wind
    119. Naval Construction Turret
    120. Wind
    121. Advanced Metal ExtractorT2 mex
    122. Wind
    123. Advanced ShipyardAdvanced Shipyarddone 14:55
    124. Wind
    125. HerringMissile corvette
    126. Wind
    127. Wind
    128. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    129. Wind
    130. Wind
    131. Wind
    132. Wind
    133. Wind
    134. Wind
    135. Wind
    136. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    137. Wind
    138. Wind
    139. HerringMissile corvette
    140. Wind
    141. Wind
    142. Converter ×2
    143. Wind
    144. Converter
    145. Wind
    146. Converter
    147. Wind
    148. Advanced Construction SubAdvanced Construction Sub

Counts are medians over the build's games: half of them build more, half fewer. The example game is ToStupidToName's (34 OS, 18/08/2026); 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

33.7 OS · 18/08/2026

Open source match ↗

5 received units · includes a constructor
206 metal received · 34174 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