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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 · 13 steps
    1. Mex ×3
    2. Wind
    3. Windfor Air
    4. Wind
    5. Windfor Air
    6. Bot LabBot Labdone 1:10
    7. Wind
    8. GraverobberGraverobber ×2
    9. Construction BotCon bot
    10. Wind
    11. Construction BotCon bot ×2
    12. GruntGrunt
    13. ShipyardShipyarddone 2:41 · 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 · 14 steps
    1. Mex
    2. Construction ShipCon ship ×2
    3. Mex
    4. HerringMissile corvette
    5. OrcaSubmarinedone 3:42
    6. Mex ×2
    7. RiptideFrigate ×2done 3:59 · typical 3:52
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. Mex
    10. OppressorDestroyernot finished by 15:00 · typical 5:11
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. RiptideFrigate
    13. HerringMissile corvette
    14. ShipyardShipyarddone 5:10
  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 · 150 steps
    1. OppressorDestroyer
    2. Con turret
    3. Tidal
    4. RiptideFrigate
    5. Tidal
    6. RiptideFrigate
    7. Tidal
    8. RiptideFrigate
    9. Tidal ×2
    10. RiptideFrigate
    11. SlingshotSlingshot
    12. Tidal
    13. Radar TowerRadar Tower
    14. Death CavalryDeath Cavalry
    15. Naval Construction Turret
    16. Wind
    17. Energy storage
    18. Wind
    19. Naval Construction Turret
    20. UrchinUrchin
    21. Wind
    22. HerringMissile corvette
    23. Wind
    24. Naval Construction Turret
    25. Wind ×3
    26. JellyfishJellyfish
    27. OppressorDestroyer
    28. Wind
    29. Naval Construction Turret
    30. Wind
    31. Naval Construction Turret
    32. Wind
    33. Advanced Metal ExtractorT2 mexdone 9:44 · typical 9:58
    34. Wind
    35. UrchinUrchin
    36. Wind
    37. Mex
    38. Amphibious ComplexAmphibious Complexdone 9:59
    39. Wind ×2
    40. UrchinUrchin
    41. Wind
    42. BeholderBeholder
    43. Wind
    44. GuardGuard
    45. Dragon's TeethDragon's Teeth
    46. BeholderBeholder
    47. GuardGuard
    48. Wind
    49. Construction ShipCon ship
    50. Tidal
    51. Wind
    52. Advanced Metal ExtractorT2 mex
    53. Tidal
    54. SalamanderSalamander
    55. Tidal
    56. HerringMissile corvette
    57. Tidal
    58. Mex
    59. Tidal
    60. SalamanderSalamander
    61. Tidal
    62. Mex
    63. Naval Energy Converter
    64. Advanced Metal ExtractorT2 mex
    65. Naval Energy Converter
    66. SalamanderSalamander
    67. Tidal
    68. Naval Energy Converter ×2
    69. Radar TowerRadar Tower
    70. Tidal
    71. Naval Energy Converter
    72. SalamanderSalamander
    73. Wind
    74. Tidal
    75. SalamanderSalamander
    76. Tidal
    77. Wind
    78. Tidal
    79. Wind
    80. Tidal ×3
    81. SalamanderSalamander
    82. Wind
    83. Tidal
    84. Advanced Metal ExtractorT2 mex
    85. GuardGuard
    86. Wind
    87. Tidal
    88. BeholderBeholder
    89. Dragon's TeethDragon's Teeth
    90. Wind
    91. GuardGuard
    92. Tidal
    93. SalamanderSalamander
    94. Dragon's TeethDragon's Teeth
    95. Wind
    96. Dragon's TeethDragon's Teeth
    97. GuardGuard
    98. Tidal
    99. Wind
    100. Naval Hovercraft PlatformNaval Hovercraft Platformdone 12:30
    101. Wind
    102. SalamanderSalamander
    103. Tidal
    104. Wind
    105. Tidal ×2
    106. MangonelHover rocket bot
    107. Wind
    108. Tidal
    109. Wind
    110. MangonelHover rocket bot
    111. SalamanderSalamander
    112. Wind
    113. Tidal
    114. Fusion ReactorFusionnot finished by 15:00
    115. MangonelHover rocket bot
    116. Wind
    117. Tidal ×2
    118. Wind
    119. Tidal ×2
    120. Naval Construction Turret
    121. Wind
    122. Tidal
    123. Wind
    124. Naval Construction Turret
    125. Wind
    126. MangonelHover rocket bot
    127. Wind
    128. Naval Construction Turret
    129. MangonelHover rocket bot
    130. Wind
    131. MangonelHover rocket bot
    132. Advanced ShipyardAdvanced Shipyarddone 14:09
    133. Wind ×5
    134. Mex
    135. CaymanCayman
    136. Advanced Construction SubAdvanced Construction Sub
    137. CaymanCayman
    138. Mex
    139. CaymanCayman
    140. ThistleThistle
    141. Converter
    142. Tidal
    143. CaymanCayman
    144. PathfinderPathfinder
    145. Tidal
    146. GuardGuard
    147. CaymanCayman
    148. Converter
    149. PathfinderPathfinder
    150. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is avaken's (43 OS, 09/08/2026); 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

42.7 OS · 09/08/2026

Open source match ↗

3 received units · includes a constructor
756 metal received · 27180 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