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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 · 6 steps
    1. Mex ×2
    2. Wind ×2for Air
    3. Wind ×2
    4. Energy storage
    5. Mex
    6. ShipyardShipyarddone 1:50 · 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 · 35 steps
    1. SupporterGunboat ×2
    2. Construction ShipCon ship ×2
    3. Tidal
    4. Death CavalryDeath Cavalry
    5. Mex
    6. Tidal ×3
    7. Mex
    8. Mex
    9. Wind
    10. Mex
    11. Wind ×2
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. Wind
    14. RiptideFrigatedone 3:50 · typical 3:50
    15. Radar TowerRadar Tower
    16. Wind ×2
    17. Converter
    18. Naval Construction Turret
    19. Wind
    20. Converter
    21. HerringMissile corvette
    22. Mex
    23. Converter
    24. Wind
    25. Converter
    26. OppressorDestroyerdone 5:16 · typical 5:15
    27. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    28. Converter
    29. Wind
    30. Converter
    31. Wind
    32. Wind
    33. UrchinUrchin
    34. Wind ×2
    35. 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 · 99 steps
    1. Wind
    2. Wind
    3. Wind
    4. HerringMissile corvette
    5. Wind
    6. Mex
    7. Wind
    8. Wind
    9. Wind
    10. RiptideFrigate
    11. UrchinUrchin
    12. Wind
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Wind
    15. Wind
    16. Wind
    17. UrchinUrchin
    18. Wind ×2
    19. RiptideFrigate
    20. Wind
    21. Tidal
    22. Wind ×2
    23. Energy storage
    24. Tidal
    25. Wind
    26. RiptideFrigate
    27. Tidal
    28. ThistleThistle
    29. Wind
    30. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    31. RiptideFrigate
    32. Tidal
    33. RiptideFrigate
    34. Tidal
    35. Advanced Metal ExtractorT2 mexdone 8:19 · typical 9:58
    36. Con turret
    37. Tidal
    38. RiptideFrigate
    39. Death CavalryDeath Cavalry
    40. Advanced Metal ExtractorT2 mex
    41. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    42. OppressorDestroyer
    43. Advanced Metal ExtractorT2 mex
    44. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    45. OppressorDestroyer
    46. Advanced Metal ExtractorT2 mex
    47. Naval Construction Turret ×2
    48. OppressorDestroyer ×2
    49. RiptideFrigate
    50. Death CavalryDeath Cavalry ×2
    51. Con turret
    52. RiptideFrigate
    53. Wind
    54. RiptideFrigate
    55. Wind
    56. RiptideFrigate
    57. Wind ×2
    58. HerringMissile corvette
    59. Wind
    60. HerringMissile corvette
    61. Wind
    62. HerringMissile corvette
    63. Wind
    64. RiptideFrigate
    65. Wind
    66. RiptideFrigate
    67. Wind
    68. Naval Construction Turret
    69. Wind ×2
    70. RiptideFrigate
    71. Wind
    72. RiptideFrigate
    73. Wind ×2
    74. RiptideFrigate
    75. Wind
    76. RiptideFrigate
    77. Wind
    78. RiptideFrigate
    79. Wind ×2
    80. RiptideFrigate
    81. Wind
    82. RiptideFrigate
    83. Wind ×2
    84. Mex
    85. RiptideFrigate
    86. Wind
    87. RiptideFrigate
    88. Wind ×2
    89. RiptideFrigate
    90. Wind ×8
    91. Advanced ShipyardAdvanced Shipyarddone 14:53
    92. Wind ×4
    93. Naval Construction Turret
    94. Wind
    95. Naval Construction Turret
    96. T2 converter
    97. Wind ×3
    98. BrimstoneAnti-swarm shipnot finished by 15:00
    99. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is optimusprime3000's (32 OS, 11/10/2026); 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

optimusprime3000

31.9 OS · 11/10/2026

Open source match ↗

8 received units · includes a constructor
99 metal received · 88389 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