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

Counts are medians over the build's games: half of them build more, half fewer. The example game is Milkdragon's (31 OS, 30/09/2026); 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

Milkdragon

30.7 OS · 30/09/2026

Open source match ↗

23 received units · includes a constructor
627 metal received · 51558 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