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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 · 1596 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1800 · 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 1596 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 · 5 steps
    1. Mex ×3
    2. Wind ×3for Air
    3. Wind ×3
    4. GuardGuard
    5. ShipyardShipyarddone 1:56 · 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. Wind
    2. HerringMissile corvette
    3. Wind ×3
    4. Construction ShipCon ship ×2
    5. RiptideFrigatedone 3:30 · typical 3:50
    6. Mex
    7. Mex
    8. RiptideFrigate
    9. Mex ×2
    10. ThistleThistle
    11. OppressorDestroyerdone 4:55 · typical 5:15
    12. Mex
    13. Con turret
    14. Mex ×2
    15. Death CavalryDeath Cavalry
  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%) · Radar Tower (40%) · tidal (40%) · 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 · 95 steps
    1. Construction ShipCon ship
    2. Wind ×2
    3. Construction ShipCon ship
    4. Wind
    5. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    6. Wind
    7. RiptideFrigate
    8. Wind
    9. GuardGuard
    10. RiptideFrigate
    11. Wind
    12. GuardGuard
    13. Wind
    14. OppressorDestroyer
    15. Radar TowerRadar Tower
    16. Wind ×3
    17. Naval Construction Turret
    18. Wind
    19. Mex
    20. Wind ×2
    21. Naval Construction Turret
    22. Wind
    23. Naval Construction Turret
    24. Wind
    25. Mex
    26. Wind
    27. Seaplane PlatformSeaplane Platformdone 8:04
    28. Wind ×2
    29. ShipyardEat Shipyardreclaimed for its metal
    30. Dam BusterSeaplane bomber
    31. Wind ×2
    32. Dragon's MawDragon's Maw
    33. Tidal
    34. Dam BusterSeaplane bomber
    35. Wind
    36. Tidal
    37. Wind
    38. Tidal
    39. Wind
    40. Dam BusterSeaplane bomber
    41. Tidal
    42. Wind
    43. Dam BusterSeaplane bomber
    44. Tidal
    45. Wind
    46. Advanced Metal ExtractorT2 mexdone 10:34
    47. Wind
    48. Tidal
    49. Dam BusterSeaplane bomber
    50. Tidal
    51. Wind
    52. Dragon's MawDragon's Maw
    53. Tidal
    54. Dam BusterSeaplane bomber
    55. Tidal
    56. Wind
    57. Tidal
    58. Advanced Metal ExtractorT2 mex
    59. Tidal
    60. Wind
    61. Dragon's MawDragon's Maw
    62. Tidal
    63. Wind
    64. Dam BusterSeaplane bomber
    65. Tidal ×4
    66. Fusion ReactorFusiondone 13:48
    67. Wind
    68. Dam BusterSeaplane bomber
    69. Advanced Metal ExtractorT2 mex
    70. Dragon's MawDragon's Maw
    71. Dam BusterSeaplane bomber
    72. Wind
    73. Dam BusterSeaplane bomber
    74. BatSeaplane fighter ×3
    75. Dragon's MawDragon's Maw
    76. BatSeaplane fighter ×3
    77. Naval Construction Turret
    78. BatSeaplane fighter ×2
    79. Naval Construction Turret
    80. BatSeaplane fighter
    81. Naval Construction Turret
    82. Advanced Metal ExtractorT2 mex
    83. BatSeaplane fighter
    84. Naval Construction Turret
    85. BatSeaplane fighter
    86. Naval Construction Turret
    87. Wind
    88. Naval Construction Turret
    89. BatSeaplane fighter
    90. Naval Construction Turret
    91. Con turret
    92. Naval Construction Turret
    93. BatSeaplane fighter ×5
    94. Wind
    95. BatSeaplane fighter

Counts are medians over the build's games: half of them build more, half fewer. The example game is SwampTurtle's (34 OS, 13/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:45 · 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

1800 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003717176101
6:005049486280
7:006492974592
8:00807216611001
9:00967826121536
10:001153637182324
11:001368547433108
12:001624658263866
13:001894068774637
14:002167279205673
15:002456088526521
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

SwampTurtle

33.6 OS · 13/10/2026

Open source match ↗

6 received units · includes a constructor
34 metal received · 38303 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=1797
Riptide3:50Middle 50%: 3:12–4:34 · n=1754
Oppressor5:15Middle 50%: 4:29–6:07 · n=1733
Advanced Metal Extractor9:59Middle 50%: 9:17–10:54 · n=1522

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildfanboi63games of this build