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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 · 1552 distinct matches · 206 players · 84% of Cortex Beach sea games · team won 55% of 1756 · 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 1552 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

    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 ×3
    3. GuardGuard
    4. Mex
    5. ShipyardShipyarddone 2:06 · 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 · 30 steps
    1. Construction ShipCon ship ×4
    2. Mex ×2
    3. HerringMissile corvette
    4. Mex
    5. Con turret
    6. Tidal
    7. HerringMissile corvette
    8. Tidal
    9. HerringMissile corvette
    10. Tidal ×2
    11. HerringMissile corvette
    12. Converter
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. HerringMissile corvette
    15. Converter
    16. Tidal
    17. HerringMissile corvette
    18. Tidal
    19. Wind
    20. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    21. Tidal
    22. HerringMissile corvette
    23. Tidal
    24. Wind
    25. Converter
    26. HerringMissile corvette
    27. Mexfor Pond
    28. Converter
    29. Wind
    30. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
  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 (46%) · tidal (40%) · 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 · 97 steps
    1. HerringMissile corvette
    2. Converter
    3. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    4. Wind
    5. Converter
    6. HerringMissile corvette
    7. Converter
    8. Wind
    9. HerringMissile corvette
    10. Converter
    11. Wind
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. HerringMissile corvette
    14. Wind
    15. HerringMissile corvette
    16. Wind
    17. HerringMissile corvette
    18. Wind
    19. HerringMissile corvette
    20. Wind
    21. Converter ×2
    22. Wind ×8
    23. Advanced Metal ExtractorT2 mexdone 7:53 · typical 9:59
    24. Death CavalryDeath Cavalry
    25. Naval Energy Converter
    26. Wind
    27. Naval Energy Storage
    28. Death CavalryDeath Cavalry
    29. Construction ShipCon ship
    30. Naval Metal Storage
    31. Construction ShipCon ship
    32. Advanced Metal ExtractorT2 mex
    33. Naval Construction Turret ×4
    34. Advanced Metal ExtractorT2 mex
    35. Tidal ×2
    36. Naval Energy Converter
    37. Tidal
    38. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    39. HerringMissile corvette
    40. Tidal ×2
    41. Naval Energy Converter
    42. HerringMissile corvette
    43. Tidal ×2
    44. HerringMissile corvette
    45. Tidal
    46. Naval Energy Converter
    47. HerringMissile corvette
    48. Tidal ×3
    49. HerringMissile corvette
    50. Tidal
    51. Naval Energy Converter
    52. HerringMissile corvette
    53. Tidal
    54. Advanced Metal ExtractorT2 mex
    55. Naval Energy Converter
    56. Tidal ×2
    57. HerringMissile corvette
    58. Tidal
    59. Naval Energy Converter
    60. HerringMissile corvette
    61. Tidal ×3
    62. HerringMissile corvette
    63. Naval Energy Converter
    64. Tidal
    65. HerringMissile corvette
    66. Tidal
    67. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    68. Tidal
    69. Naval Energy Converter
    70. Tidal ×2
    71. Naval Energy Converter ×5
    72. Tidal
    73. Naval Energy Converter
    74. Tidal ×2
    75. Naval Energy Converter
    76. Tidal ×2
    77. Naval Energy Converter
    78. Advanced ShipyardAdvanced Shipyarddone 11:36
    79. Tidal
    80. Naval Energy Converter ×2
    81. Advanced Construction SubAdvanced Construction Sub
    82. PathfinderPathfinder ×3
    83. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:52
    84. Naval Construction Turret ×2
    85. Con turret
    86. Naval Construction Turret ×2
    87. Con turret
    88. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    89. Naval Construction Turret
    90. Con turret ×3
    91. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    92. Con turret ×2
    93. Advanced Fusion ReactorAdvanced Fusion Reactornot finished by 15:00
    94. Con turret ×9
    95. UrchinUrchin
    96. Con turret ×7
    97. UrchinUrchin

Counts are medians over the build's games: half of them build more, half fewer. The example game is hannibalrising's (31 OS, 23/09/2026); 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 2:15 · in 65% 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 8:09 · 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

1756 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002539051
5:003717176103
6:005044484281
7:006488974599
8:00806916701013
9:00968326041541
10:001153737182343
11:001368547653112
12:001625058753910
13:001895468794652
14:002167279375711
15:002457688436529
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

hannibalrising

30.9 OS · 23/09/2026

Open source match ↗

4 received units · includes a constructor
1423 metal received · 15218 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=1753
Riptide3:50Middle 50%: 3:12–4:34 · n=1710
Oppressor5:15Middle 50%: 4:28–6:07 · n=1692
Advanced Metal Extractor9:59Middle 50%: 9:17–10:55 · n=1485

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildPRO_HYDRA63games of this build