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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 · 1689 distinct matches · 219 players · 84% of Cortex Beach sea games · team won 55% of 1896 · 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 1689 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 · 5 steps
    1. Mex ×3
    2. GuardGuard
    3. Wind ×2
    4. Wind ×2for Air
    5. ShipyardShipyarddone 1:44 · 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 · 26 steps
    1. Tidal
    2. HerringMissile corvette
    3. Tidal
    4. Construction ShipCon ship
    5. Con turret
    6. Tidal ×2
    7. Construction ShipCon ship
    8. RiptideFrigatedone 3:00 · typical 3:50
    9. Mex
    10. RiptideFrigate
    11. Mex ×2
    12. Wind ×2
    13. Converter
    14. Mex
    15. Converter ×2
    16. Mex
    17. OppressorDestroyerdone 4:53 · typical 5:16
    18. Converter
    19. Wind
    20. Mex
    21. Wind ×2
    22. Mex
    23. Wind ×3
    24. SentrySentry
    25. Wind
    26. HerringMissile corvette
  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 · 155 steps
    1. Wind
    2. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    3. Death CavalryDeath Cavalry
    4. Wind ×2
    5. SentrySentry
    6. Naval Construction Turret
    7. Wind
    8. RiptideFrigate
    9. Wind
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. Wind
    12. RiptideFrigate
    13. Energy storage
    14. NettleNettle
    15. Mex
    16. Wind
    17. SupporterGunboat
    18. Wind
    19. SupporterGunboat
    20. Wind
    21. NettleNettle
    22. SupporterGunboat
    23. Wind
    24. Mex
    25. SupporterGunboat ×3
    26. CoralCoral
    27. SupporterGunboat
    28. SentrySentry
    29. SupporterGunboat
    30. GuardGuard
    31. SupporterGunboat ×3
    32. Windfor Air
    33. SupporterGunboat
    34. Windfor Air
    35. OppressorDestroyer
    36. SentrySentry
    37. Windfor Air
    38. Wind ×4
    39. RiptideFrigate
    40. SentrySentry
    41. Wind ×3
    42. RiptideFrigate
    43. Advanced Metal ExtractorT2 mexdone 9:35 · typical 9:59
    44. Wind ×2
    45. SentrySentry
    46. Wind
    47. HerringMissile corvette
    48. Wind
    49. SlingshotSlingshot
    50. Wind
    51. Death CavalryDeath Cavalry
    52. Wind
    53. Con turret
    54. SlingshotSlingshot
    55. OppressorDestroyer
    56. RiptideFrigate
    57. HerringMissile corvette
    58. Wind
    59. Construction ShipCon ship
    60. Wind ×2
    61. Advanced Metal ExtractorT2 mex
    62. Naval Construction Turret
    63. Wind ×2
    64. Naval Construction Turret
    65. Tidal
    66. Con turret
    67. Advanced ShipyardAdvanced Shipyarddone 11:14
    68. Vehicle PlantVehicle Plantdone 10:58
    69. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    70. Advanced Metal ExtractorT2 mex
    71. Naval Energy Converter
    72. ShipyardEat Shipyardreclaimed for its metal
    73. Advanced Construction SubAdvanced Construction Sub
    74. Naval Energy Converter
    75. PincerPincer
    76. Naval Energy Converter
    77. PincerPincer ×2
    78. Naval Energy Converter
    79. PincerPincer
    80. Construction VehicleCon vehicle
    81. PincerPincer
    82. Naval Energy Converter
    83. BeaverBeaver
    84. Naval Energy Converter
    85. Advanced Construction SubAdvanced Construction Sub
    86. Naval Energy Converter
    87. BeaverBeaver
    88. Naval Construction Turret
    89. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:27
    90. Naval Construction Turret
    91. PincerPincer ×2
    92. Naval Energy Converter
    93. PincerPincer
    94. Advanced Metal ExtractorT2 mex
    95. Naval Energy Converter
    96. PincerPincer
    97. Naval Energy Converter
    98. PhantasmRadar jammer ship
    99. Naval Energy Converter
    100. PincerPincer ×2
    101. MessengerCruise missile shipdone 13:34
    102. Wind
    103. Tidal
    104. PincerPincer
    105. Wind
    106. PincerPincer
    107. Wind
    108. Tidal
    109. PincerPincer
    110. Bot LabBot Labdone 13:57
    111. Wind
    112. Tidal
    113. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    114. PincerPincer
    115. Tidal
    116. Wind
    117. Tidal
    118. PincerPincer
    119. Wind
    120. Tidal ×2
    121. Construction BotCon bot
    122. Wind
    123. Tidal
    124. Wind
    125. Tidal
    126. Construction BotCon bot
    127. Wind
    128. Tidal
    129. Wind
    130. Tidal
    131. Wind
    132. Construction BotCon bot
    133. ThistleThistle
    134. Tidal
    135. Fusion ReactorFusionnot finished by 15:00
    136. Wind
    137. Tidal
    138. Wind
    139. ThistleThistle
    140. Wind
    141. Tidal
    142. Construction BotCon bot
    143. Con turret
    144. Wind
    145. Tidal
    146. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    147. Tidal
    148. Wind ×2
    149. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    150. GruntGrunt
    151. Wind
    152. Twin GuardTwin Guard ×2
    153. GruntGrunt
    154. Con turret
    155. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is Xsicer's (30 OS, 14/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:45 · 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 8:09 · 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

1896 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
6:005050482270
7:006497971586
8:0080861661995
9:00968626121512
10:001154537112273
11:001368847083046
12:001622657813831
13:001889568704581
14:002164379225622
15:002454588656487
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

Xsicer

30.1 OS · 14/08/2026

Open source match ↗

6 received units · includes a constructor
478 metal received · 52683 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=1893
Riptide3:50Middle 50%: 3:12–4:34 · n=1847
Oppressor5:16Middle 50%: 4:30–6:08 · n=1828
Advanced Metal Extractor9:59Middle 50%: 9:17–10:54 · n=1598

Played most by

EpicTyrannus122games of this buildDamsko69games of this buildfanboi67games of this buildKbot_my_Ahole67games of this buildSHOGVN65games of this build