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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 · 1566 distinct matches · 206 players · 84% of Cortex Beach sea games · team won 55% of 1770 · 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 1566 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 · 9 steps
    1. Mex ×3
    2. Wind ×4
    3. Bot LabBot Labdone 1:11
    4. Windfor Air
    5. GraverobberGraverobber
    6. Windfor Air
    7. GraverobberGraverobber
    8. Construction BotCon bot ×3
    9. ShipyardShipyarddone 3:00 · 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 · 17 steps
    1. GruntGrunt
    2. Construction ShipCon ship
    3. Bot LabEat Bot Labreclaimed for its metal
    4. Mex
    5. Construction ShipCon ship
    6. Mex
    7. OrcaSubmarinedone 3:55
    8. RiptideFrigatedone 4:11 · typical 3:50
    9. Mex ×2
    10. RiptideFrigate
    11. Tidal
    12. Mex
    13. UrchinUrchin
    14. ShipyardShipyarddone 5:00
    15. GuardGuard
    16. ShipyardEat Shipyardreclaimed for its metal
    17. Wind
  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%) · Radar Tower (39%) · tidal (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 · 90 steps
    1. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    2. Wind
    3. OppressorDestroyerdone 6:05 · typical 5:14
    4. Wind
    5. Mex
    6. Wind
    7. UrchinUrchin
    8. Wind
    9. Mex
    10. Wind
    11. OppressorDestroyer
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. Wind
    14. Energy storage
    15. Tidal
    16. Wind
    17. HerringMissile corvette
    18. Wind ×2
    19. Death CavalryDeath Cavalry
    20. Wind ×3
    21. OppressorDestroyer
    22. Wind ×4
    23. OppressorDestroyer
    24. Wind ×4
    25. OppressorDestroyer
    26. Wind ×4
    27. OppressorDestroyer
    28. Wind
    29. Naval Metal Storage
    30. Wind
    31. Advanced Metal ExtractorT2 mexdone 10:02 · typical 9:58
    32. Mex
    33. Wind
    34. Con turret
    35. OppressorDestroyer
    36. Mex
    37. Naval Construction Turret
    38. BeholderBeholder
    39. Advanced Metal ExtractorT2 mex
    40. BeholderBeholder
    41. Naval Construction Turret
    42. BeholderBeholder ×3
    43. Advanced Metal ExtractorT2 mex
    44. Advanced ShipyardAdvanced Shipyarddone 11:48
    45. Tidal
    46. Advanced Construction SubAdvanced Construction Sub
    47. Tidal
    48. Con turret
    49. Tidal
    50. PathfinderPathfinder
    51. Tidal
    52. Advanced Metal ExtractorT2 mex
    53. BeholderBeholder
    54. PathfinderPathfinder
    55. Tidal
    56. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    57. PathfinderPathfinder
    58. BeholderBeholder
    59. Tidal ×2
    60. BeholderBeholder
    61. Tidal ×2
    62. PhantasmRadar jammer ship
    63. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:12
    64. Tidal
    65. GuardGuard
    66. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    67. GuardGuard
    68. Death CavalryDeath Cavalry
    69. Tidal
    70. DespotBattleshipdone 14:51
    71. Tidal
    72. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    73. Tidal
    74. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    75. Wind
    76. Con turret
    77. Wind
    78. Tidal
    79. Death CavalryDeath Cavalry
    80. Wind
    81. Con turret
    82. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    83. Wind
    84. Tidal
    85. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    86. Wind
    87. Tidal
    88. Wind
    89. PathfinderPathfinder
    90. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is Fullchord's (32 OS, 13/10/2026); 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 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 8:08 · 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

1770 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003717176102
6:005047483281
7:006489972599
8:00807216681010
9:00968326081541
10:001154037252338
11:001368547653112
12:001625058753909
13:001894668794651
14:002167779295701
15:002459888436523
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

Fullchord

32.4 OS · 13/10/2026

Open source match ↗

4 received units · includes a constructor
715 metal received · 5094 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=1767
Riptide3:50Middle 50%: 3:12–4:34 · n=1724
Oppressor5:14Middle 50%: 4:28–6:06 · n=1706
Advanced Metal Extractor9:58Middle 50%: 9:17–10:55 · n=1496

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