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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 · 1589 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1793 · 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 1589 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 1:43–2:07

    Some games also: Guard (30%)

    By 1:39 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 7 steps
    1. Mex ×2
    2. Wind ×2for Air
    3. Mex
    4. Windfor Air
    5. GuardGuard
    6. Wind ×2
    7. ShipyardShipyarddone 1:53 · 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 (36%) · wind (36%)

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

    The example game in this phase · 17 steps
    1. Construction ShipCon ship ×2
    2. Mex
    3. HerringMissile corvette
    4. SupporterGunboat ×2
    5. Mex
    6. Mex
    7. Mex
    8. OrcaSubmarinedone 4:29
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. Con turret
    11. Tidal
    12. Mex ×3
    13. RiptideFrigatedone 5:31 · typical 3:50
    14. UrchinUrchin
    15. Converter
    16. Radar TowerRadar Tower
    17. ThistleThistle
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • 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 (39%) · Radar Tower (39%) · 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 · 109 steps
    1. UrchinUrchin
    2. Tidal
    3. Wind
    4. GuardGuard
    5. Tidal
    6. Death CavalryDeath Cavalry
    7. Wind
    8. Tidal
    9. Wind
    10. Mex
    11. Tidal
    12. RiptideFrigate
    13. Wind
    14. Construction ShipCon ship
    15. Wind
    16. Mex
    17. Construction ShipCon ship
    18. Wind ×2
    19. OppressorDestroyerdone 6:48 · typical 5:15
    20. Wind
    21. GuardGuard
    22. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    23. Energy storage
    24. OppressorDestroyer
    25. Tidal
    26. HerringMissile corvette
    27. Tidal ×2
    28. Dragon's MawDragon's Maw
    29. HerringMissile corvette
    30. SlingshotSlingshot
    31. Tidal ×2
    32. HerringMissile corvette
    33. SlingshotSlingshot
    34. Naval Construction Turret
    35. HerringMissile corvette ×3
    36. SlingshotSlingshot
    37. HerringMissile corvette
    38. Advanced Metal ExtractorT2 mexdone 9:26 · typical 9:58
    39. HerringMissile corvette ×2
    40. GuardGuard
    41. Dragon's MawDragon's Maw
    42. HerringMissile corvette ×4
    43. SlingshotSlingshot
    44. Seaplane PlatformSeaplane Platformdone 9:59
    45. SlingshotSlingshot
    46. ShipyardEat Shipyardreclaimed for its metal
    47. SlingshotSlingshot
    48. Advanced Metal ExtractorT2 mex
    49. SlingshotSlingshot ×2
    50. Construction SeaplaneConstruction Seaplane
    51. BatSeaplane fighter
    52. Advanced Metal ExtractorT2 mex
    53. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    54. BatSeaplane fighter
    55. SlingshotSlingshot
    56. Bot LabBot Labnot finished by 15:00
    57. BatSeaplane fighter
    58. SlingshotSlingshot
    59. Dragon's MawDragon's Maw
    60. BatSeaplane fighter
    61. Naval Energy Storage
    62. BatSeaplane fighter
    63. Tidal
    64. SlingshotSlingshot
    65. Tidal ×2
    66. BatSeaplane fighter
    67. Tidal
    68. Bot LabBot Labnot finished by 15:00
    69. Advanced Metal ExtractorT2 mex
    70. Tidal
    71. BatSeaplane fighter
    72. Tidal ×4
    73. BatSeaplane fighter
    74. Tidal ×3
    75. BatSeaplane fighter
    76. Tidal ×2
    77. BatSeaplane fighter
    78. Advanced ShipyardAdvanced Shipyarddone 13:31
    79. Tidal
    80. BatSeaplane fighter
    81. Naval Construction Turret ×2
    82. BatSeaplane fighter ×2
    83. Tidal
    84. BatSeaplane fighter
    85. Tidal
    86. BatSeaplane fighter
    87. Advanced Construction SubAdvanced Construction Sub
    88. Tidal
    89. BatSeaplane fighter
    90. Tidal
    91. BatSeaplane fighter
    92. Tidal
    93. BatSeaplane fighter
    94. PathfinderPathfinder
    95. Tidal
    96. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:32
    97. BatSeaplane fighter
    98. OasisOasis
    99. Tidal
    100. BatSeaplane fighter
    101. MonsoonTorpedo gunship
    102. Tidal
    103. PhantasmRadar jammer ship
    104. LampreyLampreydone 14:55
    105. Tidal
    106. MonsoonTorpedo gunship
    107. DespotBattleshipnot finished by 15:00
    108. Naval Construction Turret
    109. MonsoonTorpedo gunship

Counts are medians over the build's games: half of them build more, half fewer. The example game is Tink3r's (33 OS, 08/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:46 · 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 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 64% of games
  • Construction Bot1 Con bot from Geofirst at 2:26 · in 70% of games
  • Hercules1 Light transport from Airfirst at 2:34 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:08 · 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

1793 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003716176101
6:005045487280
7:006492972592
8:00807016651001
9:00967926141532
10:001153637242325
11:001368547443105
12:001625058553875
13:001895168784645
14:002167379245691
15:002456588566520
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

Tink3r

33.3 OS · 08/10/2026

Open source match ↗

7 received units · includes a constructor
34 metal received · 42520 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:43–2:07 · n=1790
Riptide3:50Middle 50%: 3:12–4:34 · n=1747
Oppressor5:15Middle 50%: 4:29–6:06 · n=1726
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=1517

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildPRO_HYDRA63games of this build