BAR / BUILD ATLAS
← All builds
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 · 1591 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1795 · 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 1591 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 · 5 steps
    1. Mex ×3
    2. Wind ×2
    3. Wind ×3for Air
    4. Energy storage
    5. ShipyardShipyarddone 1:52 · 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 · 22 steps
    1. Tidal
    2. Construction ShipCon ship
    3. Tidal
    4. Con turret
    5. Construction ShipCon ship
    6. RiptideFrigatedone 2:34 · typical 3:50
    7. Mex
    8. RiptideFrigate
    9. Mex ×2
    10. GuardGuard
    11. Mex
    12. Wind
    13. OppressorDestroyerdone 5:16 · typical 5:14
    14. Wind ×2
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Wind ×4
    17. Mex
    18. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    19. Mex
    20. Wind
    21. GuardGuard
    22. Wind ×2
  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 · 100 steps
    1. Wind ×2
    2. Death CavalryDeath Cavalry
    3. Radar TowerRadar Tower
    4. Wind ×6
    5. Dragon's MawDragon's Maw
    6. HerringMissile corvette
    7. Wind
    8. RiptideFrigate
    9. Wind
    10. Converter ×2
    11. RiptideFrigate
    12. Converter ×2
    13. BeholderBeholder
    14. RiptideFrigate
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Wind
    17. Naval Construction Turret
    18. Wind
    19. RiptideFrigate
    20. Wind ×3
    21. UrchinUrchin
    22. Wind
    23. RiptideFrigate
    24. Wind
    25. UrchinUrchin
    26. Wind ×2
    27. OppressorDestroyer
    28. Wind ×4
    29. Advanced Metal ExtractorT2 mexdone 9:28 · typical 9:58
    30. Wind
    31. OppressorDestroyer
    32. Wind
    33. HerringMissile corvette
    34. Mex
    35. Wind ×2
    36. Advanced Metal ExtractorT2 mex
    37. Wind
    38. OppressorDestroyer
    39. Wind
    40. Naval Construction Turret
    41. Advanced Metal ExtractorT2 mex
    42. Wind
    43. OppressorDestroyer
    44. Wind
    45. Tidal ×2
    46. Wind
    47. OppressorDestroyer
    48. Tidal
    49. Naval Construction Turret
    50. Wind ×2
    51. Tidal
    52. Wind ×2
    53. Tidal
    54. Death CavalryDeath Cavalry
    55. Tidal
    56. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    57. Wind
    58. Advanced Metal ExtractorT2 mex
    59. Wind
    60. HerringMissile corvette
    61. Tidal
    62. RiptideFrigate
    63. Tidal
    64. Wind
    65. RiptideFrigate
    66. Tidal
    67. Wind ×2
    68. RiptideFrigate
    69. Tidal
    70. Wind
    71. RiptideFrigate
    72. Wind
    73. RiptideFrigate
    74. Wind
    75. OppressorDestroyer
    76. Wind
    77. HarpoonHarpoon
    78. Wind ×2
    79. HerringMissile corvette
    80. RiptideFrigate
    81. Wind
    82. RiptideFrigate
    83. Wind
    84. RiptideFrigate
    85. Wind
    86. RiptideFrigate
    87. Wind ×2
    88. RiptideFrigate
    89. Wind
    90. OppressorDestroyer
    91. Advanced ShipyardAdvanced Shipyarddone 14:17
    92. HerringMissile corvette
    93. Wind
    94. Advanced Construction SubAdvanced Construction Sub
    95. Con turret
    96. Naval Construction Turret
    97. ShipyardEat Shipyardreclaimed for its metal
    98. PathfinderPathfinder
    99. Naval Construction Turret
    100. PathfinderPathfinder ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is fanboi's (34 OS, 12/10/2026); 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

1795 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003717176101
6:005049487280
7:006492975592
8:00807016651001
9:00967926141532
10:001153637242325
11:001368547443105
12:001625058553871
13:001895168784629
14:002167379245680
15:002456588566501
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

fanboi

34.3 OS · 12/10/2026

Open source match ↗

5 received units · includes a constructor
376 metal received · 14905 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=1792
Riptide3:50Middle 50%: 3:12–4:34 · n=1749
Oppressor5:14Middle 50%: 4:29–6:06 · n=1728
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=1519

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildfanboi63games of this build
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas