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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 · 7 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. GuardGuard
    4. Energy storage
    5. Windfor Air
    6. GuardGuard
    7. 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 · 23 steps
    1. Tidal
    2. Construction ShipCon ship
    3. Tidal
    4. Construction ShipCon ship
    5. SupporterGunboatfor Geo sea
    6. HerringMissile corvette
    7. Mex ×2
    8. HerringMissile corvette
    9. Mex
    10. GuardGuard
    11. Mex
    12. Converter
    13. OrcaSubmarinedone 4:05
    14. Converter
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Mex
    17. Con turret
    18. RiptideFrigatedone 4:37 · typical 3:50
    19. Naval Energy Converter
    20. Death CavalryDeath Cavalry
    21. Mex ×2
    22. ThistleThistle
    23. 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 (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 · 97 steps
    1. Mex
    2. Wind
    3. GuardGuard
    4. RiptideFrigate
    5. Wind ×2
    6. GuardGuard
    7. Wind
    8. RiptideFrigate
    9. Dragon's MawDragon's Maw
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. Wind
    12. GuardGuard
    13. OppressorDestroyerdone 6:30 · typical 5:15
    14. Wind
    15. ThistleThistle
    16. Wind
    17. Radar TowerRadar Tower
    18. Mex
    19. OppressorDestroyer
    20. Wind ×2
    21. Death CavalryDeath Cavalry
    22. Wind
    23. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    24. Construction ShipCon ship
    25. Wind
    26. RiptideFrigate
    27. Wind ×2
    28. Mex
    29. Wind
    30. GuardGuard
    31. RiptideFrigate
    32. Wind
    33. RiptideFrigate
    34. Wind ×2
    35. HerringMissile corvette
    36. Wind
    37. OppressorDestroyer
    38. Mex
    39. Wind
    40. GuardGuard
    41. Radar TowerRadar Tower
    42. ThistleThistle
    43. Wind
    44. Death CavalryDeath Cavalry
    45. GuardGuard
    46. Wind
    47. GuardGuard
    48. Construction ShipCon ship
    49. Wind
    50. Advanced Metal ExtractorT2 mexdone 10:38 · typical 9:58
    51. RiptideFrigate
    52. Wind
    53. GuardGuard
    54. RiptideFrigate
    55. Wind
    56. GuardGuard
    57. Wind
    58. RiptideFrigate
    59. Wind
    60. Mex
    61. HerringMissile corvette
    62. Wind
    63. Naval Construction Turret
    64. GuardGuard
    65. OppressorDestroyer
    66. Construction ShipCon ship
    67. HerringMissile corvette
    68. Naval Construction Turret
    69. Wind
    70. Naval Construction Turret
    71. Wind
    72. Advanced Metal ExtractorT2 mex
    73. Naval Construction Turret
    74. Advanced ShipyardAdvanced Shipyarddone 12:03
    75. Wind
    76. ShipyardEat Shipyardreclaimed for its metal
    77. Wind ×2
    78. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    79. Wind
    80. Advanced Metal ExtractorT2 mex
    81. Wind
    82. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    83. Advanced Construction SubAdvanced Construction Sub
    84. PathfinderPathfinder ×3
    85. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:15
    86. OasisOasis
    87. GuardGuard
    88. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    89. OasisOasis
    90. Radar TowerRadar Tower
    91. Mex
    92. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    93. GuardGuard ×2
    94. Advanced Metal ExtractorT2 mex
    95. OasisOasis
    96. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    97. OasisOasis ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is Weebaro's (31 OS, 12/09/2026); 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 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

Weebaro

31.1 OS · 12/09/2026

Open source match ↗

8 received units · includes a constructor
346 metal received · 50160 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