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

Counts are medians over the build's games: half of them build more, half fewer. The example game is GoldReasons's (31 OS, 15/09/2026); 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

GoldReasons

31.0 OS · 15/09/2026

Open source match ↗

8 received units · includes a constructor
226 metal received · 18773 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
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas