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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 (94%)

#naval #eco · 812 distinct matches · 107 players · 84% of Cortex Beach sea games · team won 55% of 877 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:57

  1. Open 3 mex and wind while com heads straight to sea.
  2. Drop Shipyard fast, before 2:00, to seize early sea presence.
  3. Push "frigate" out to contest enemy sea entry or hold vision.
  4. Add "destroyer" as the fleet grows.
  5. Transition into Advanced Metal Extractor to catch up on eco.

Phase by phase

TYPICAL OF ITS 812 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 ~1:57, middle half 1:44–2:08

    By 1:41 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 9 steps
    1. Mex ×3
    2. Wind ×4
    3. Bot LabBot Labdone 1:10
    4. Windfor Air
    5. GraverobberGraverobber ×2
    6. Windfor Air
    7. Construction BotCon bot ×3
    8. GruntGrunt
    9. ShipyardShipyarddone 2:43 · typical 1:57
  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 (43%) · wind (40%) · submarine (39%) · gunboat (36%) · con turret (35%)

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

    The example game in this phase · 17 steps
    1. Mex
    2. Construction ShipCon ship ×2
    3. Mex
    4. OrcaSubmarinedone 3:35
    5. GuardGuard
    6. Mex
    7. RiptideFrigatedone 3:51 · typical 3:52
    8. Mex
    9. RiptideFrigate
    10. Mex
    11. Wind
    12. RiptideFrigate
    13. Mex ×2
    14. RiptideFrigate
    15. Wind
    16. RiptideFrigate
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine10Wind
    Builders
    • Death Cavalry1 Death Cavalry
    • Construction Ship1 Con ship
    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 (48%) · Guard (47%) · Radar Tower (41%) · tidal (38%) · con turret (34%)

    By 10:00 in all: 9 mex · 12 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 151 steps
    1. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    2. Wind
    3. OppressorDestroyerdone 6:09 · typical 5:11
    4. Wind
    5. Dragon's MawDragon's Maw
    6. Wind
    7. Death CavalryDeath Cavalry
    8. Wind
    9. HerringMissile corvette
    10. RiptideFrigate
    11. Wind
    12. RiptideFrigate ×3
    13. OppressorDestroyer
    14. Death CavalryDeath Cavalry
    15. HerringMissile corvette
    16. Tidal
    17. RiptideFrigate
    18. Energy storage
    19. Tidal
    20. Naval Construction Turret
    21. Advanced Metal ExtractorT2 mexdone 10:05 · typical 9:58
    22. Wind
    23. Tidal
    24. RiptideFrigate
    25. Wind
    26. Tidal
    27. Wind
    28. Naval Construction Turret
    29. Wind
    30. RiptideFrigate
    31. Tidal
    32. ShipyardShipyarddone 9:57
    33. Tidal
    34. Advanced Metal ExtractorT2 mex
    35. RiptideFrigate ×2
    36. OppressorDestroyer
    37. Death CavalryDeath Cavalry
    38. HerringMissile corvette
    39. RiptideFrigate
    40. Wind
    41. Wind
    42. Wind
    43. Wind
    44. Mex
    45. Wind
    46. Wind
    47. RiptideFrigate
    48. Advanced Metal ExtractorT2 mex
    49. Wind
    50. Wind
    51. Wind
    52. RiptideFrigate
    53. Wind
    54. OppressorDestroyer
    55. Wind
    56. Wind
    57. Wind
    58. Death CavalryDeath Cavalry
    59. Tidal
    60. Wind
    61. Wind
    62. HerringMissile corvette
    63. Wind
    64. Wind
    65. RiptideFrigate
    66. Tidal
    67. Wind
    68. UrchinUrchin
    69. RiptideFrigate
    70. UrchinUrchin
    71. Wind
    72. RiptideFrigate
    73. Tidal
    74. Advanced Metal ExtractorT2 mex
    75. RiptideFrigate
    76. Wind
    77. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    78. OppressorDestroyer
    79. Tidal
    80. Wind
    81. Death CavalryDeath Cavalry
    82. OrcaSubmarine
    83. Wind
    84. Naval Construction Turret
    85. Tidal
    86. Wind
    87. Con turret
    88. OrcaSubmarine
    89. Wind
    90. Tidal
    91. OrcaSubmarine
    92. Wind
    93. Tidal
    94. Wind
    95. Wind
    96. Energy storage
    97. Naval Construction Turret
    98. OrcaSubmarine
    99. Wind
    100. Tidal
    101. Naval Hovercraft PlatformNaval Hovercraft Platformdone 13:43
    102. Wind
    103. Naval Construction Turret
    104. MangonelHover rocket bot
    105. Wind
    106. Wind
    107. Tidal
    108. Wind
    109. OrcaSubmarine
    110. Con turret
    111. MangonelHover rocket bot
    112. Radar TowerRadar Tower
    113. Wind
    114. MangonelHover rocket bot
    115. Wind
    116. MangonelHover rocket bot
    117. Wind
    118. Wind
    119. GoonGoon ×2
    120. Tidal
    121. Wind
    122. UrchinUrchin
    123. GoonGoon
    124. UrchinUrchin
    125. Wind ×2
    126. Wind
    127. GoonGoon
    128. Wind
    129. Con turret
    130. UrchinUrchin
    131. GoonGoon
    132. Wind
    133. Wind
    134. Naval Construction Turret
    135. Wind
    136. GoonGoon
    137. Wind
    138. Wind
    139. GoonGoon
    140. Wind
    141. Wind
    142. Wind
    143. GoonGoon
    144. Wind
    145. Wind
    146. GoonGoon
    147. Wind ×2
    148. Wind
    149. Wind
    150. GoonGoon
    151. Con turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is avaken's (44 OS, 11/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 79% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:28 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:34 · 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

877 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025312150
5:003701197100
6:005032534254
7:0064761096590
8:00807618331031
9:00968328541610
10:001159239942340
11:001382252133090
12:001635261643821
13:001911472004611
14:002195382755717
15:002492992706561
WHAT THE NUMBERS SAY

Standard Beach sea wins more than Geo sea's 50% and gets its Shipyard up faster, using early sea access before falling behind on land resources.

  • + Shipyard finishes by 1:57, faster than Geo sea's 3:18
  • + 54% team win rate beats the Cortex geo sea baseline
  • − Metal produced trails Geo sea's Cortex build, 24356 vs 28451 by 15:00
  • − T2 factory only lands in 35% of games by 12:42
THE EXAMPLE YOU ARE READING

avaken

44.1 OS · 11/08/2026

Open source match ↗

5 received units · includes a constructor
176 metal received · 20100 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:44–2:08 · n=875
Riptide3:52Middle 50%: 3:16–4:34 · n=863
Oppressor5:11Middle 50%: 4:16–6:08 · n=848
Advanced Metal Extractor9:58Middle 50%: 9:16–10:53 · n=743

Played most by

EpicTyrannus85games of this buildDamsko67games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build