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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 ×3
    2. Wind ×2for Air
    3. Wind
    4. Wind ×2for Air
    5. Energy storage
    6. Wind
    7. ShipyardShipyarddone 2:01 · 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 · 21 steps
    1. Construction ShipCon ship
    2. Tidal ×3
    3. Construction ShipCon ship
    4. Tidal
    5. Mex
    6. HerringMissile corvette
    7. SupporterGunboat ×4
    8. Mex ×2
    9. SupporterGunboat
    10. Mex
    11. UrchinUrchin ×2
    12. SupporterGunboat
    13. HerringMissile corvette
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    15. RiptideFrigatedone 5:05 · typical 3:50
    16. ThistleThistle
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. Mex
    19. Radar TowerRadar Tower
    20. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    21. 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 · 95 steps
    1. RiptideFrigate
    2. Wind ×2
    3. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    4. Wind ×3
    5. Construction ShipCon ship
    6. Wind
    7. Mex
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. UrchinUrchin
    10. Construction ShipCon ship
    11. Con turret
    12. Construction ShipCon ship
    13. RiptideFrigate ×3
    14. Tidal
    15. HerringMissile corvette
    16. Wind
    17. Tidal
    18. Wind
    19. Tidal
    20. Wind
    21. Tidal
    22. RiptideFrigate
    23. Wind ×2
    24. RiptideFrigate
    25. Wind
    26. OppressorDestroyerdone 8:50 · typical 5:15
    27. Wind
    28. Death CavalryDeath Cavalry ×2
    29. Advanced Metal ExtractorT2 mexdone 9:45 · typical 9:58
    30. Naval Construction Turret
    31. HerringMissile corvette
    32. RiptideFrigate
    33. Advanced Metal ExtractorT2 mex
    34. RiptideFrigate
    35. Naval Energy Converter
    36. Radar TowerRadar Tower
    37. Naval Energy Converter ×2
    38. OppressorDestroyer
    39. Advanced Metal ExtractorT2 mex
    40. Naval Energy Converter
    41. HerringMissile corvette
    42. RiptideFrigate
    43. Advanced Metal ExtractorT2 mex
    44. ShipyardEat Shipyardreclaimed for its metal
    45. Tidal
    46. Naval Construction Turret
    47. Tidal
    48. Naval Construction Turret
    49. Tidal ×4
    50. Naval Construction Turret
    51. Tidal
    52. Wind
    53. Naval Construction Turret
    54. Wind
    55. Naval Construction Turret
    56. Wind
    57. Naval Construction Turret
    58. Wind
    59. Tidal ×2
    60. Wind
    61. Tidal
    62. Naval Construction Turret
    63. Wind
    64. Naval Construction Turret
    65. Tidal
    66. Wind
    67. Naval Construction Turret
    68. Tidal
    69. Wind
    70. Tidal ×3
    71. Wind
    72. Tidal
    73. Wind
    74. Tidal
    75. Wind
    76. Tidal
    77. Advanced ShipyardAdvanced Shipyarddone 13:56
    78. Wind ×2
    79. BrimstoneAnti-swarm shipdone 14:03
    80. Wind
    81. BrimstoneAnti-swarm ship
    82. Wind
    83. Advanced Construction SubAdvanced Construction Sub
    84. Wind
    85. Advanced Metal ExtractorT2 mex
    86. Wind
    87. PathfinderPathfinder
    88. Wind
    89. PathfinderPathfinder ×2
    90. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:56
    91. Wind
    92. Advanced Construction SubAdvanced Construction Sub
    93. Wind
    94. PathfinderPathfinder
    95. Con turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is Alexspeed's (35 OS, 01/09/2026); 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

Alexspeed

34.6 OS · 01/09/2026

Open source match ↗

4 received units · includes a constructor
34 metal received · 16146 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