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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 (94%)

#naval #eco · 935 distinct matches · 113 players · 83% of Cortex Beach sea games · team won 54% of 1009 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:57

  1. Grab mex and tidal, push com to sea to build shipyard.
  2. Finish shipyard and start pumping frigate and destroyer.
  3. Field first frigate to contest enemy sea entry or hold vision.
  4. Add destroyer to the mix as the fight for sea develops.
  5. Shift into advanced metal extractor as the economy transition.

Phase by phase

TYPICAL OF ITS 935 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 Turbine2Windfor allies
    • Wind Turbine2Wind
    • Energy Storage1Energy storage
    Order
    1. ShipyardShipyard after 3 mex, 2 wind, 1 energy storagedone ~1:56, middle half 1:41–2:07

    Some games also: tidal (31%)

    By 1:40 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 8 steps
    1. Mex ×3
    2. Windfor Air
    3. Wind
    4. Wind ×2for Air
    5. GuardGuard
    6. Energy storage
    7. Wind ×2
    8. ShipyardShipyarddone 2:12 · 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%) · wind (39%) · submarine (38%) · mex (36%) · gunboat (36%)

    By 5:00 in all: 8 mex · 3 wind · 2 tidal · 1 energy storage

    The example game in this phase · 20 steps
    1. Tidal
    2. Construction ShipCon ship
    3. Tidal
    4. Construction ShipCon ship
    5. Mex
    6. Converter
    7. Construction ShipCon ship
    8. Mex ×3
    9. GuardGuard
    10. RiptideFrigatedone 3:58 · typical 3:49
    11. UrchinUrchin
    12. Converter
    13. RiptideFrigate
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Mex
    16. Con turret
    17. RiptideFrigate
    18. SlingshotSlingshot
    19. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    20. Tidal
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine9Wind
    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%) · con turret (35%)

    By 10:00 in all: 9 mex · 11 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 87 steps
    1. Tidal
    2. JellyfishJellyfish
    3. Tidal
    4. Wind ×3
    5. Tidal
    6. Mex ×2
    7. Wind ×2
    8. Tidal
    9. Mex ×2
    10. Wind ×2
    11. Tidal
    12. Wind
    13. Naval Construction Turret
    14. RiptideFrigate
    15. Wind ×4
    16. RiptideFrigate
    17. Wind ×2
    18. Dragon's MawDragon's Maw
    19. Wind
    20. RiptideFrigate
    21. Naval Construction Turret
    22. Wind ×2
    23. Tidal ×2
    24. Con turret
    25. OppressorDestroyerdone 8:07 · typical 5:12
    26. Tidal ×3
    27. Wind
    28. Tidal
    29. HerringMissile corvette
    30. Tidal
    31. RiptideFrigate
    32. Tidal
    33. RiptideFrigate ×2
    34. Advanced Metal ExtractorT2 mexdone 9:19
    35. OppressorDestroyer
    36. HerringMissile corvette
    37. Advanced Metal ExtractorT2 mex
    38. RiptideFrigate ×2
    39. Naval Construction Turret
    40. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    41. Advanced Metal ExtractorT2 mex
    42. RiptideFrigate
    43. HerringMissile corvette
    44. Naval Construction Turret ×2
    45. Tidal
    46. ShipyardEat Shipyardreclaimed for its metal
    47. Tidal ×2
    48. Naval Construction Turret
    49. Tidal
    50. Advanced Bot LabAdvanced Bot Labdone 11:27
    51. Tidal ×2
    52. Naval Construction Turret
    53. Advanced Metal ExtractorT2 mex
    54. DeceiverJammer bot
    55. AugurRadar bot
    56. ArbiterArbiter ×2done 11:58
    57. SheldonSheldon ×6done 12:13
    58. DeceiverJammer bot
    59. Tidal
    60. AugurRadar bot
    61. Tidal
    62. ArbiterArbiter
    63. Tidal ×2
    64. ArbiterArbiter
    65. Tidal ×3
    66. SheldonSheldon
    67. Tidal ×4
    68. SheldonSheldon
    69. Tidal ×4
    70. SheldonSheldon
    71. Tidal ×3
    72. GuardGuard
    73. SheldonSheldon
    74. Tidal ×4
    75. SheldonSheldon
    76. Tidal ×4
    77. SheldonSheldon
    78. Tidal ×3
    79. DeceiverJammer bot
    80. AugurRadar bot
    81. Tidal
    82. ArbiterArbiter
    83. Tidal
    84. ArbiterArbiter
    85. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    86. Tidal ×2
    87. Advanced Bot LabEat Advanced Bot Labreclaimed for its metal

Counts are medians over the build's games: half of them build more, half fewer. The example game is Kbot_my_Ahole's (37 OS, 07/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 78% of games

You get

  • Finch1 Finch from Airfirst at 1:59 · in 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:14 · in 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 67% of games
  • Construction Bot1 Con bot from Geofirst at 2:27 · in 70% of games
  • Hercules1 Light transport from Airfirst at 2:32 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:09 · 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

1009 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156900
4:002538051
5:003715197100
6:005041540261
7:0064861074590
8:00805618061014
9:00967627771581
10:001157039202310
11:001375549693051
12:001628260643825
13:001909071214611
14:002186582015711
15:002489893256582
WHAT THE NUMBERS SAY

Standard sea-first play for Beach sea, with the lowest team win rate of the roles shown at 54% and a big gap in metal destroyed vs lost by 15:00.

  • + Metal produced hits 24892 by 15:00, second highest overall shown.
  • − Enemy metal destroyed only 9261 by 15:00 against own losses of 6529, a tight margin for a sea role.
THE EXAMPLE YOU ARE READING

Kbot_my_Ahole

36.9 OS · 07/10/2026

Open source match ↗

5 received units · includes a constructor
128 metal received · 18537 energy received

Allied construction assistance is unknown. Timings are observations, not a promise of solo reproducibility.

Typical milestones

Shipyard1:56Middle 50%: 1:41–2:07 · n=1007
Riptide3:49Middle 50%: 3:15–4:32 · n=988
Oppressor5:12Middle 50%: 4:22–6:07 · n=970
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=853

Played most by

EpicTyrannus99games of this buildDamsko68games of this buildKbot_my_Ahole64games of this buildWaboum64games of this buildPRO_HYDRA63games of this build