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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 · 935 distinct matches · 113 players · 83% of Cortex Beach sea games · team won 54% of 1009 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:57

  1. Grab mex and tidal, push com to sea to build shipyard.
  2. Finish shipyard and start pumping frigate and destroyer.
  3. Field first frigate to contest enemy sea entry or hold vision.
  4. Add destroyer to the mix as the fight for sea develops.
  5. Shift into advanced metal extractor as the economy transition.

Phase by phase

TYPICAL OF ITS 935 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 Turbine2Windfor allies
    • Wind Turbine2Wind
    • Energy Storage1Energy storage
    Order
    1. ShipyardShipyard after 3 mex, 2 wind, 1 energy storagedone ~1:56, middle half 1:41–2:07

    Some games also: tidal (31%)

    By 1:40 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 4 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind ×2
    4. ShipyardShipyarddone 1:33 · 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%) · wind (39%) · submarine (38%) · mex (36%) · gunboat (36%)

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

    The example game in this phase · 19 steps
    1. Wind
    2. Construction ShipCon ship ×2
    3. Wind
    4. Mex
    5. Wind
    6. HerringMissile corvette
    7. RiptideFrigatedone 3:01 · typical 3:49
    8. Mex ×2
    9. RiptideFrigate
    10. Mex
    11. Wind
    12. RiptideFrigate
    13. Wind ×2
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Wind ×3
    16. RiptideFrigate
    17. UrchinUrchin
    18. Mex
    19. OppressorDestroyerdone 5:08 · typical 5:12
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine9Wind
    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%) · Radar Tower (40%) · tidal (40%) · con turret (35%)

    By 10:00 in all: 9 mex · 11 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 168 steps
    1. Wind
    2. Construction ShipCon ship
    3. Naval Construction Turret
    4. Wind
    5. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    6. HerringMissile corvette
    7. RiptideFrigate
    8. Wind ×2
    9. RiptideFrigate
    10. Tidal
    11. GuardGuard ×2
    12. Tidal
    13. RiptideFrigate
    14. Wind
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Tidal
    17. Wind
    18. Tidal
    19. RiptideFrigate
    20. Tidal
    21. Wind
    22. OppressorDestroyer
    23. Tidal
    24. Wind
    25. Tidal
    26. Wind
    27. Tidal
    28. HerringMissile corvette
    29. Construction ShipCon ship
    30. GuardGuard
    31. Advanced Metal ExtractorT2 mexdone 9:20 · typical 9:58
    32. Construction ShipCon ship
    33. Tidal
    34. Wind
    35. ThistleThistle
    36. Construction ShipCon ship
    37. GuardGuard
    38. Tidal
    39. Construction ShipCon ship
    40. Wind
    41. Advanced ShipyardAdvanced Shipyarddone 9:29
    42. Construction ShipCon ship
    43. ThistleThistle
    44. Naval Energy Storage
    45. Construction ShipCon ship
    46. Wind
    47. Mex
    48. GuardGuard
    49. Wind
    50. Advanced Metal ExtractorT2 mex
    51. ShipyardEat Shipyardreclaimed for its metal
    52. Advanced Construction SubAdvanced Construction Sub
    53. Mex
    54. Wind
    55. ThistleThistle
    56. PathfinderPathfinder
    57. Naval Construction Turret
    58. ThistleThistle
    59. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 10:56
    60. Wind
    61. PathfinderPathfinder ×2
    62. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    63. BeholderBeholder
    64. Tidal
    65. PathfinderPathfinder
    66. Wind
    67. Naval Metal Storage
    68. Tidal ×3
    69. PathfinderPathfinder
    70. Advanced Metal ExtractorT2 mex
    71. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    72. Wind
    73. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    74. BeholderBeholder
    75. Advanced ShipyardEat Advanced Shipyardreclaimed for its metal
    76. Naval Construction Turret
    77. Wind
    78. BeholderBeholder ×2
    79. Naval Construction Turret
    80. BeholderBeholder
    81. Naval Construction Turret ×2
    82. Wind
    83. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    84. Naval Construction Turret
    85. Tidal
    86. SlingshotSlingshot
    87. Naval Construction Turret
    88. Tidal
    89. Naval Construction Turret
    90. Tidal ×2
    91. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    92. SlingshotSlingshot
    93. Wind
    94. Tidal
    95. Advanced ShipyardAdvanced Shipyarddone 12:24
    96. Naval Energy Converter
    97. Tidal
    98. SlingshotSlingshot
    99. Naval Energy Converter
    100. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    101. Tidal
    102. SlingshotSlingshot
    103. OasisOasis
    104. Naval Energy Converter
    105. Wind
    106. Tidal
    107. Naval Energy Converter
    108. Advanced Metal ExtractorT2 mex
    109. SlingshotSlingshot
    110. Tidal
    111. PhantasmRadar jammer ship
    112. SlingshotSlingshot
    113. Naval Energy Converter
    114. Tidal
    115. MessengerCruise missile shipdone 13:16
    116. Tidal
    117. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    118. Wind
    119. Naval Energy Converter
    120. Tidal
    121. SlingshotSlingshot ×2
    122. Naval Energy Converter
    123. MessengerCruise missile ship
    124. Tidal
    125. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    126. Naval Energy Converter
    127. Wind
    128. SlingshotSlingshot
    129. Naval Energy Converter
    130. Tidal
    131. SlingshotSlingshot
    132. Tidal
    133. Naval Energy Converter
    134. Tidal
    135. Naval Energy Converter
    136. Tidal
    137. MessengerCruise missile ship
    138. Tidal
    139. SlingshotSlingshot
    140. Naval Energy Converter
    141. Tidal
    142. Wind
    143. Tidal
    144. SlingshotSlingshot
    145. Naval Energy Converter
    146. LampreyLampreynot finished by 15:00
    147. Tidal
    148. Naval Energy Converter
    149. SlingshotSlingshot ×2
    150. Arrow StormAnti-air shipdone 14:40
    151. Tidal
    152. Naval Energy Converter
    153. Tidal
    154. Naval Energy Converter
    155. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    156. Tidal ×2
    157. Arrow StormAnti-air ship
    158. Naval Energy Converter
    159. Wind
    160. Tidal
    161. SlingshotSlingshot
    162. Tidal
    163. Naval Energy Converter
    164. SlingshotSlingshot
    165. Tidal
    166. Naval Energy Converter
    167. Advanced Construction SubAdvanced Construction Sub
    168. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is [Grump]Grumpiness's (47 OS, 08/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 78% of games

You get

  • Finch1 Finch from Airfirst at 1:59 · in 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:14 · in 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 67% of games
  • Construction Bot1 Con bot from Geofirst at 2:27 · in 70% 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

1009 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156900
4:002538051
5:003715197100
6:005041540261
7:0064861074590
8:00805618061014
9:00967627771581
10:001157039202310
11:001375549693051
12:001628260643825
13:001909071214611
14:002186582015711
15:002489893256582
WHAT THE NUMBERS SAY

Standard sea-first play for Beach sea, with the lowest team win rate of the roles shown at 54% and a big gap in metal destroyed vs lost by 15:00.

  • + Metal produced hits 24892 by 15:00, second highest overall shown.
  • − Enemy metal destroyed only 9261 by 15:00 against own losses of 6529, a tight margin for a sea role.
THE EXAMPLE YOU ARE READING

[Grump]Grumpiness

47.1 OS · 08/10/2026

Open source match ↗

13 received units · includes a constructor
1426 metal received · 37752 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:41–2:07 · n=1007
Riptide3:49Middle 50%: 3:15–4:32 · n=988
Oppressor5:12Middle 50%: 4:22–6:07 · n=970
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=853

Played most by

EpicTyrannus99games of this buildDamsko68games of this buildKbot_my_Ahole64games of this buildWaboum64games of this buildPRO_HYDRA63games of this build