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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 · 5 steps
    1. Mex ×3
    2. Wind ×3for Air
    3. GuardGuard
    4. Energy storage
    5. ShipyardShipyarddone 1:54 · 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 · 33 steps
    1. Tidal
    2. Construction ShipCon ship ×2
    3. SupporterGunboat ×3
    4. Con turret
    5. SupporterGunboat
    6. Mex ×2
    7. SupporterGunboat
    8. OrcaSubmarinenot finished by 15:00
    9. Mex ×2
    10. Wind
    11. GuardGuard
    12. HerringMissile corvette
    13. Wind
    14. Converter
    15. HerringMissile corvette
    16. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    17. Mex
    18. Wind
    19. Converter
    20. Wind
    21. Converter
    22. RiptideFrigatedone 4:16 · typical 3:50
    23. Wind
    24. Converter
    25. Wind
    26. RiptideFrigate
    27. Wind
    28. Mex
    29. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    30. Wind ×2
    31. Mex
    32. RiptideFrigate
    33. 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 · 80 steps
    1. Wind
    2. OppressorDestroyerdone 5:52 · typical 5:14
    3. Wind ×2
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. Wind ×2
    6. RiptideFrigate
    7. Wind
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. Wind
    10. UrchinUrchin
    11. RiptideFrigate
    12. Wind
    13. Mex
    14. Wind
    15. Mex
    16. Dragon's MawDragon's Maw
    17. Wind
    18. RiptideFrigate
    19. GuardGuard
    20. Wind ×2
    21. GuardGuard
    22. Converter
    23. GuardGuard
    24. Death CavalryDeath Cavalry
    25. Radar TowerRadar Tower
    26. Converter
    27. OppressorDestroyer
    28. ThistleThistle
    29. Converter
    30. Dragon's MawDragon's Maw
    31. Converter
    32. Construction ShipCon ship
    33. Converter
    34. RiptideFrigate
    35. Dragon's MawDragon's Maw
    36. Advanced Metal ExtractorT2 mexdone 9:52 · typical 9:58
    37. RiptideFrigate
    38. Converter
    39. RiptideFrigate
    40. Converter
    41. HerringMissile corvette
    42. SlingshotSlingshot
    43. Converter
    44. Death CavalryDeath Cavalry
    45. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    46. Converter
    47. OppressorDestroyer
    48. Advanced Metal ExtractorT2 mex
    49. Construction ShipCon ship
    50. RiptideFrigate ×3
    51. Advanced Metal ExtractorT2 mex
    52. HerringMissile corvette
    53. BeholderBeholder
    54. Death CavalryDeath Cavalry
    55. BeholderBeholder
    56. OppressorDestroyer
    57. GuardGuard
    58. Construction ShipCon ship
    59. RiptideFrigate ×3
    60. Dragon's MawDragon's Maw
    61. Advanced Metal ExtractorT2 mex
    62. HerringMissile corvette
    63. Death CavalryDeath Cavalry
    64. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    65. OppressorDestroyer
    66. Construction ShipCon ship
    67. RiptideFrigate ×2
    68. Fusion ReactorFusionnot finished by 15:00
    69. Naval Construction Turret
    70. RiptideFrigate
    71. Naval Construction Turret
    72. HerringMissile corvette
    73. Naval Construction Turret
    74. Death CavalryDeath Cavalry
    75. Naval Construction Turret
    76. OppressorDestroyer
    77. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    78. ArbalestArbalest
    79. Construction ShipCon ship
    80. ArbalestArbalest

Counts are medians over the build's games: half of them build more, half fewer. The example game is Weebaro's (32 OS, 10/09/2026); 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 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

Weebaro

31.9 OS · 10/09/2026

Open source match ↗

8 received units · includes a constructor
412 metal received · 146377 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