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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 · 1644 distinct matches · 210 players · 84% of Cortex Beach sea games · team won 55% of 1849 · 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 1644 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 · 6 steps
    1. Mex ×2
    2. Windfor Air
    3. Mex
    4. Wind ×2for Air
    5. Wind
    6. ShipyardShipyarddone 1:38 · 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%) · submarine (37%) · wind (37%) · wind (35%)

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

    The example game in this phase · 19 steps
    1. Solar
    2. HerringMissile corvette
    3. Construction ShipCon ship
    4. Solar
    5. Construction ShipCon ship
    6. Mex
    7. RiptideFrigatedone 3:29 · typical 3:50
    8. Mex
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. Construction ShipCon ship
    11. Mex
    12. Construction ShipCon ship
    13. Mex
    14. Mex
    15. Mex ×2
    16. Naval Construction Turret
    17. ThistleThistle
    18. OppressorDestroyerdone 5:48 · typical 5:16
    19. Solar
  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 (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 · 167 steps
    1. Tidal ×4
    2. Wind
    3. Tidal ×2
    4. Mex
    5. Tidal
    6. Wind
    7. Tidal
    8. Death CavalryDeath Cavalry
    9. Tidal ×2
    10. Wind
    11. Wind
    12. Converter
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Naval Energy Converter
    15. Converter
    16. Death CavalryDeath Cavalry
    17. Naval Energy Converter
    18. Mex
    19. Converter
    20. Wind
    21. Tidal
    22. Wind
    23. Tidal
    24. Wind
    25. Mex
    26. Tidal
    27. Wind
    28. Wind
    29. Tidal
    30. Construction ShipCon ship
    31. Wind
    32. Tidal ×2
    33. Wind
    34. UrchinUrchin
    35. Tidal
    36. Wind
    37. Wind
    38. Construction ShipCon ship
    39. Tidal
    40. Wind ×2
    41. UrchinUrchin
    42. OppressorDestroyer
    43. Tidal
    44. Wind
    45. Tidal
    46. Wind
    47. Wind
    48. Tidal
    49. Wind
    50. Tidal
    51. Wind
    52. Mex
    53. Wind
    54. Tidal
    55. Converter
    56. Tidal ×2
    57. Advanced Metal ExtractorT2 mexdone 9:15 · typical 9:59
    58. Converter
    59. Tidal ×2
    60. Wind
    61. Converter
    62. Tidal
    63. Converter
    64. Tidal
    65. Converter
    66. Wind
    67. Tidal
    68. RiptideFrigate
    69. Tidal ×2
    70. Naval Construction Turret
    71. Wind
    72. GuardGuard
    73. Tidal
    74. GuardGuard
    75. Tidal
    76. AgitatorAgitatornot finished by 15:00
    77. Wind
    78. Naval Energy Converter
    79. GuardGuard
    80. Advanced Metal ExtractorT2 mex
    81. Tidal
    82. RiptideFrigate
    83. Naval Energy Converter
    84. HerringMissile corvette
    85. GuardGuard
    86. Tidal
    87. Wind
    88. Naval Energy Converter
    89. HerringMissile corvette
    90. Tidal
    91. GuardGuard
    92. Naval Energy Converter
    93. HerringMissile corvette
    94. Tidal
    95. Naval Energy Converter
    96. SlingshotSlingshot
    97. HerringMissile corvette
    98. Wind
    99. Tidal
    100. SlingshotSlingshot
    101. Radar TowerRadar Tower
    102. Naval Energy Converter
    103. OppressorDestroyer
    104. Tidal
    105. Advanced ShipyardAdvanced Shipyarddone 11:40
    106. Wind
    107. Tidal
    108. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    109. Tidal
    110. Advanced Metal ExtractorT2 mex
    111. Tidal ×2
    112. Wind
    113. Tidal
    114. ShipyardEat Shipyardreclaimed for its metal
    115. Tidal
    116. Wind
    117. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    118. Naval Energy Converter
    119. Wind
    120. Naval Energy Converter
    121. Advanced Construction SubAdvanced Construction Sub
    122. Naval Energy Converter
    123. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    124. Wind
    125. Naval Energy Converter
    126. PathfinderPathfinder
    127. Naval Energy Converter
    128. PathfinderPathfinder
    129. Wind
    130. OasisOasis
    131. Naval Energy Converter
    132. Advanced Metal ExtractorT2 mex
    133. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:52
    134. Naval Energy Converter
    135. Naval Construction Turret
    136. Wind
    137. Naval Energy Converter
    138. Arrow StormAnti-air shipdone 13:10
    139. Naval Energy Converter
    140. Wind
    141. Naval Energy Converter
    142. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    143. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    144. DespotBattleshipdone 14:28
    145. Wind
    146. Tidal ×2
    147. Wind
    148. UrchinUrchin
    149. Tidal
    150. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    151. Tidal
    152. Wind
    153. ShipyardShipyarddone 14:31
    154. Tidal
    155. UrchinUrchin
    156. Tidal
    157. CitadelAnti-nukenot finished by 15:00
    158. Wind
    159. Tidal
    160. BuccaneerCruisernot finished by 15:00
    161. Death CavalryDeath Cavalry
    162. Tidal
    163. LampreyLampreynot finished by 15:00
    164. Wind
    165. Tidal
    166. UrchinUrchin
    167. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is Nooby442's (33 OS, 05/09/2026); 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 80% 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 2:33 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:09 · 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

1849 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155200
4:002540051
5:003718175101
6:005049484276
7:006498981590
8:0080841670995
9:00968626131521
10:001154437112295
11:001368547173051
12:001624857873851
13:001892268754611
14:002163879205657
15:002453088866520
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

Nooby442

33.2 OS · 05/09/2026

Open source match ↗

6 received units · includes a constructor
21 metal received · 26266 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=1846
Riptide3:50Middle 50%: 3:12–4:34 · n=1801
Oppressor5:16Middle 50%: 4:30–6:08 · n=1782
Advanced Metal Extractor9:59Middle 50%: 9:17–10:54 · n=1558

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildSHOGVN65games of this buildfanboi64games of this build
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas