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

Counts are medians over the build's games: half of them build more, half fewer. The example game is kbssilks's (36 OS, 14/10/2026); 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 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

kbssilks

35.5 OS · 14/10/2026

Open source match ↗

4 received units · includes a constructor
221 metal received · 33012 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