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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 (92%)

#naval #eco · 1694 distinct matches · 220 players · 84% of Cortex Beach sea games · team won 55% of 1903 · 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 1694 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 1:44–2:07

    Some games also: Guard (31%)

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

    The example game in this phase · 14 steps
    1. Mex ×3
    2. Wind ×5
    3. Aircraft PlantAircraft Plantdone 1:19
    4. FinchFinchfor Geo sea
    5. HerculesLight transportfor Geo sea
    6. HephaestusHeavy transport
    7. FinchFinch
    8. Construction AircraftCon aircraft ×2
    9. Mex
    10. Construction AircraftCon aircraft
    11. Con turret
    12. Mex
    13. Wind
    14. ShipyardShipyarddone 4:04 · 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 (37%) · wind (35%)

    By 5:00 in all: 8 mex · 3 wind · 2 tidal · 1 energy storage

    The example game in this phase · 7 steps
    1. Mex
    2. Con turret
    3. HerringMissile corvette
    4. Mex
    5. RiptideFrigatedone 5:00 · typical 3:50
    6. Wind
    7. Radar TowerRadar Tower
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • 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 (40%) · Radar Tower (40%) · wind (35%)

    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 · 156 steps
    1. Wind
    2. RiptideFrigate
    3. Mex
    4. Wind
    5. Death CavalryDeath Cavalry
    6. Mex
    7. Wind ×2
    8. GuardGuard
    9. Wind ×2
    10. OppressorDestroyerdone 6:41 · typical 5:16
    11. Wind ×6
    12. Radar TowerRadar Tower
    13. Con turret
    14. ThistleThistle
    15. Wind ×3
    16. JellyfishJellyfish
    17. Wind ×2
    18. RiptideFrigate
    19. Wind ×3
    20. Aircraft PlantEat Aircraft Plantreclaimed for its metal
    21. ThistleThistle
    22. Wind ×3
    23. ShipyardShipyarddone 7:33
    24. Wind ×2
    25. Converter
    26. RiptideFrigate
    27. Con turret
    28. Wind
    29. Converter
    30. Wind ×2
    31. Advanced Metal ExtractorT2 mexdone 8:51
    32. Converter
    33. Wind
    34. Death CavalryDeath Cavalry
    35. Converter
    36. Death CavalryDeath Cavalry
    37. Converter
    38. Wind
    39. RiptideFrigate
    40. Converter ×2
    41. Con turret
    42. OppressorDestroyer
    43. HerringMissile corvette
    44. Converter
    45. Death CavalryDeath Cavalry
    46. Advanced Metal ExtractorT2 mex
    47. Converter
    48. Energy storage
    49. OppressorDestroyer
    50. Converter
    51. Wind
    52. Converter
    53. Wind
    54. Wind ×2
    55. Wind
    56. Wind
    57. Advanced Metal ExtractorT2 mex
    58. Wind
    59. Converter
    60. Wind ×3
    61. GuardGuard
    62. Wind
    63. Construction ShipCon ship
    64. Wind ×4
    65. Wind
    66. RiptideFrigate
    67. Wind ×2
    68. RiptideFrigate
    69. Wind
    70. Wind
    71. Wind
    72. Wind
    73. Wind
    74. Converter
    75. BeholderBeholder
    76. RiptideFrigate
    77. Dragon's TeethDragon's Teeth ×5
    78. Converter
    79. Dragon's TeethDragon's Teeth ×2
    80. HerringMissile corvette
    81. Advanced Metal ExtractorT2 mex
    82. Dragon's TeethDragon's Teeth ×3
    83. Death CavalryDeath Cavalry
    84. Wind
    85. Dragon's TeethDragon's Teeth
    86. Converter
    87. Dragon's TeethDragon's Teeth ×2
    88. Wind
    89. Dragon's TeethDragon's Teeth ×3
    90. OppressorDestroyer
    91. Dragon's TeethDragon's Teeth
    92. Wind
    93. Dragon's TeethDragon's Teeth ×2
    94. Converter
    95. Dragon's TeethDragon's Teeth
    96. Wind
    97. Dragon's TeethDragon's Teeth ×2
    98. Wind
    99. Dragon's TeethDragon's Teeth ×2
    100. Converter
    101. Wind
    102. Dragon's TeethDragon's Teeth
    103. Wind
    104. RiptideFrigate
    105. Converter
    106. Wind ×2
    107. RiptideFrigate
    108. Converter
    109. Wind ×3
    110. RiptideFrigate
    111. Con turret
    112. Wind
    113. HerringMissile corvette
    114. Wind
    115. Death CavalryDeath Cavalry
    116. Wind
    117. OppressorDestroyer
    118. Wind
    119. Converter
    120. Wind
    121. Converter
    122. Wind
    123. Converter
    124. RiptideFrigate
    125. Wind
    126. Converter
    127. RiptideFrigate
    128. Naval Construction Turret
    129. Wind
    130. Converter
    131. Advanced Metal ExtractorT2 mex
    132. RiptideFrigate
    133. Wind ×2
    134. HerringMissile corvette
    135. Wind
    136. Death CavalryDeath Cavalry
    137. Wind ×2
    138. Advanced Metal ExtractorT2 mex
    139. OppressorDestroyer
    140. Wind
    141. Naval Construction Turret
    142. Wind ×2
    143. RiptideFrigate
    144. Wind
    145. Naval Construction Turret
    146. Wind
    147. RiptideFrigate
    148. Wind ×2
    149. HerringMissile corvette ×2
    150. Wind
    151. HerringMissile corvette
    152. Naval Construction Turret
    153. Wind ×2
    154. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    155. Con turret
    156. Wind ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is Ihatesea's (30 OS, 15/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:44 · in 77% of games

You get

  • Finch1 Finch from Airfirst at 2:00 · in 79% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:15 · in 64% of games
  • Construction Bot1 Con bot from Geofirst at 2:26 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:32 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:08 · 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

1903 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003717175101
6:005051482270
7:006495971581
8:0080861661995
9:00968926141510
10:001155037112271
11:001369947043042
12:001624457803831
13:001890868724565
14:002167079245585
15:002456588866482
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

Ihatesea

30.4 OS · 15/10/2026

Open source match ↗

9 received units · includes a constructor
2040 metal received · 39499 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:44–2:07 · n=1900
Riptide3:50Middle 50%: 3:12–4:34 · n=1854
Oppressor5:16Middle 50%: 4:30–6:08 · n=1834
Advanced Metal Extractor9:59Middle 50%: 9:17–10:54 · n=1604

Played most by

EpicTyrannus122games of this buildDamsko69games of this buildfanboi67games of this buildKbot_my_Ahole67games of this buildSHOGVN66games of this build
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas