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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 · 8 steps
    1. Mex ×2
    2. Windfor Air
    3. Mex
    4. Wind ×2for Air
    5. GuardGuard
    6. Wind
    7. Tidal
    8. ShipyardShipyarddone 1:54 · 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 · 20 steps
    1. Construction ShipCon ship ×2
    2. Mex
    3. Tidal
    4. HerringMissile corvette ×2
    5. Mex ×2
    6. Con turret
    7. Mex
    8. OppressorDestroyernot finished by 15:00 · typical 5:15
    9. RiptideFrigatedone 3:42 · typical 3:50
    10. GuardGuard
    11. Mex
    12. RiptideFrigate
    13. UrchinUrchin
    14. Wind
    15. OppressorDestroyer
    16. Wind ×2
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    18. Mex
    19. Wind
    20. Mex
  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 · 112 steps
    1. Wind
    2. Death CavalryDeath Cavalry
    3. Wind
    4. Radar TowerRadar Tower
    5. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    6. Wind
    7. HerringMissile corvette
    8. Wind
    9. RiptideFrigate
    10. Wind ×2
    11. RiptideFrigate
    12. Wind
    13. RiptideFrigate
    14. Wind
    15. OppressorDestroyer
    16. Converter ×2
    17. Wind ×3
    18. Construction ShipCon ship
    19. Naval Construction Turret
    20. Wind
    21. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    22. Wind
    23. Tidal
    24. Naval Construction Turret
    25. Mex
    26. Wind
    27. Tidal
    28. Wind
    29. Tidal
    30. Naval Hovercraft PlatformNaval Hovercraft Platformdone 9:09
    31. Wind
    32. Tidal
    33. Mex
    34. Advanced Metal ExtractorT2 mexdone 10:03 · typical 9:58
    35. Wind
    36. Tidal
    37. Wind
    38. Tidal
    39. Converter
    40. Tidal
    41. MangonelHover rocket bot
    42. Tidal
    43. Energy storage
    44. MangonelHover rocket bot
    45. Tidal
    46. MangonelHover rocket bot
    47. Converter
    48. Tidal
    49. MangonelHover rocket bot
    50. Converter
    51. Tidal
    52. MangonelHover rocket bot
    53. Converter
    54. Tidal
    55. BeholderBeholder
    56. Advanced Metal ExtractorT2 mex
    57. ShipyardEat Shipyardreclaimed for its metal
    58. BeholderBeholder
    59. Tidal
    60. Naval Construction Turret
    61. Tidal
    62. BeholderBeholder
    63. Tidal
    64. Naval Construction Turret
    65. Tidal
    66. BeholderBeholder
    67. Seaplane PlatformSeaplane Platformdone 11:11
    68. Tidal
    69. BeholderBeholder
    70. Tidal
    71. Naval Hovercraft PlatformEat Naval Hovercraft Platformreclaimed for its metal
    72. Advanced Metal ExtractorT2 mex
    73. Tidal ×4
    74. MonsoonTorpedo gunship
    75. BeholderBeholder
    76. Tidal
    77. BeholderBeholder
    78. MonsoonTorpedo gunship
    79. Tidal
    80. MonsoonTorpedo gunship
    81. Tidal
    82. BeholderBeholder
    83. MonsoonTorpedo gunship
    84. Tidal
    85. BeholderBeholder
    86. MonsoonTorpedo gunship
    87. Tidal
    88. MonsoonTorpedo gunship
    89. BeholderBeholder
    90. MonsoonTorpedo gunship ×2
    91. Advanced Metal ExtractorT2 mex
    92. Dragon's MawDragon's Maw
    93. MonsoonTorpedo gunship
    94. Tidal
    95. MonsoonTorpedo gunship
    96. Tidal
    97. Advanced ShipyardAdvanced Shipyarddone 13:39
    98. Tidal ×3
    99. Dragon's MawDragon's Maw
    100. Tidal ×2
    101. Advanced Construction SubAdvanced Construction Sub
    102. Tidal ×2
    103. PathfinderPathfinder
    104. Tidal
    105. PathfinderPathfinder
    106. Tidal
    107. PathfinderPathfinder
    108. Dragon's MawDragon's Maw
    109. PathfinderPathfinder ×2
    110. BrimstoneAnti-swarm ship ×2done 14:38
    111. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    112. BrimstoneAnti-swarm ship ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is [MooDeng]NongJohn's (38 OS, 14/10/2026); 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

[MooDeng]NongJohn

37.5 OS · 14/10/2026

Open source match ↗

7 received units · includes a constructor
181 metal received · 11527 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
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas