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Beach sea / Cortex / Economy first / OBSERVED BUILD

Standard beach sea

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 · 729 distinct matches · 102 players · 84% of Cortex Beach sea games · team won 55% of 789 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:57

  1. Open 3 mex and wind while com heads straight to sea.
  2. Drop Shipyard fast, before 2:00, to seize early sea presence.
  3. Push "frigate" out to contest enemy sea entry or hold vision.
  4. Add "destroyer" as the fleet grows.
  5. Transition into Advanced Metal Extractor to catch up on eco.

Phase by phase

TYPICAL OF ITS 729 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 ~1:57, middle half 1:45–2:08

    By 1:41 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 5 steps
    1. Mex ×3
    2. Wind ×3
    3. Windfor Air
    4. Energy storage
    5. ShipyardShipyarddone 1:48 · typical 1:57
  2. 2

    Shipyard to 5:00

    Economy
    • Metal Extractor5Mex
    • Tidal Generator1Tidal
    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 (42%) · wind (41%) · submarine (40%) · con turret (35%) · gunboat (34%)

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

    The example game in this phase · 28 steps
    1. Tidal
    2. Construction ShipCon ship
    3. Tidal
    4. Construction ShipCon ship
    5. OrcaSubmarinedone 3:04
    6. Tidal
    7. Mex ×4
    8. SupporterGunboat ×4
    9. HerringMissile corvette
    10. Mex ×2
    11. HerringMissile corvette
    12. GuardGuard
    13. NettleNettle
    14. Wind
    15. SupporterGunboat
    16. Wind ×2
    17. SupporterGunboat
    18. HerringMissile corvette
    19. Wind
    20. SentrySentry
    21. Converter
    22. HerringMissile corvette
    23. Converter
    24. SupporterGunboat
    25. HerringMissile corvette
    26. Mex
    27. UrchinUrchin
    28. OppressorDestroyerdone 5:44 · typical 5:09
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine10Wind
    Builders
    • Death Cavalry1 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    • Herring2 Missile corvette
    Other
    • Naval Radar / Sonar Tower1 Naval Radar / Sonar Tower

    Some games also: Urchin (50%) · Naval Construction Turret (47%) · Guard (47%) · Radar Tower (41%) · tidal (38%)

    By 10:00 in all: 9 mex · 12 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 98 steps
    1. Mex
    2. Converter ×2
    3. Naval Construction Turret
    4. OppressorDestroyer
    5. Converter
    6. Naval Construction Turret
    7. Wind ×4
    8. OppressorDestroyer
    9. Radar TowerRadar Tower
    10. Wind ×2
    11. Naval Construction Turret
    12. Wind ×2
    13. SlingshotSlingshot
    14. Converter
    15. Wind
    16. OppressorDestroyer
    17. Converter ×2
    18. Naval Construction Turret
    19. Wind
    20. Converter ×2
    21. Wind
    22. Converter
    23. UrchinUrchin
    24. Wind
    25. RiptideFrigatedone 8:55 · typical 3:51
    26. Wind
    27. Wind
    28. RiptideFrigate
    29. OppressorDestroyer
    30. Naval Construction Turret
    31. Wind
    32. Advanced Metal ExtractorT2 mexdone 9:55 · typical 9:57
    33. SlingshotSlingshot
    34. Wind
    35. UrchinUrchin
    36. Wind
    37. Wind
    38. UrchinUrchin
    39. Wind ×2
    40. Wind
    41. Wind
    42. Tidal
    43. Wind
    44. Tidal ×2
    45. Advanced Metal ExtractorT2 mex
    46. Tidal
    47. Wind
    48. OppressorDestroyer
    49. Tidal ×2
    50. UrchinUrchin
    51. Wind
    52. Advanced Metal ExtractorT2 mex
    53. Tidal
    54. Wind
    55. Naval Construction Turret
    56. Tidal
    57. Wind
    58. OppressorDestroyer
    59. Tidal
    60. Advanced Metal ExtractorT2 mex
    61. Tidal
    62. Wind
    63. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    64. NettleNettle
    65. Tidal
    66. UrchinUrchin
    67. OppressorDestroyer
    68. UrchinUrchin
    69. Tidal
    70. NettleNettle
    71. OppressorDestroyer
    72. CyclopsCyclops
    73. OppressorDestroyer
    74. Naval Construction Turret
    75. Advanced Metal ExtractorT2 mex
    76. CyclopsCyclops
    77. Naval Construction Turret
    78. Death CavalryDeath Cavalry
    79. Wind
    80. Naval Construction Turret
    81. Wind
    82. Naval Construction Turret
    83. Wind
    84. Death CavalryDeath Cavalry
    85. Naval Construction Turret
    86. Wind
    87. UrchinUrchin
    88. Wind
    89. Advanced Metal ExtractorT2 mex
    90. Advanced ShipyardAdvanced Shipyarddone 14:53
    91. Death CavalryDeath Cavalry
    92. Wind
    93. SlingshotSlingshot ×2
    94. Wind
    95. SlingshotSlingshot
    96. Wind ×2
    97. SlingshotSlingshot
    98. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is EXZoPrimer3's (38 OS, 13/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:54 · in 79% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 81% of games
  • Lazarus1 Lazarus from Geofirst at 2:14 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:29 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:35 · in 31% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:09 · in 88% 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

789 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156300
4:002522050
5:003699194100
6:005026532250
7:0064731100588
8:00808018571041
9:00968328851621
10:001160240232345
11:001382252273090
12:001635262003851
13:001911172574621
14:002186583045721
15:002487692656531
WHAT THE NUMBERS SAY

Standard Beach sea wins more than Geo sea's 50% and gets its Shipyard up faster, using early sea access before falling behind on land resources.

  • + Shipyard finishes by 1:57, faster than Geo sea's 3:18
  • + 54% team win rate beats the Cortex geo sea baseline
  • − Metal produced trails Geo sea's Cortex build, 24356 vs 28451 by 15:00
  • − T2 factory only lands in 35% of games by 12:42
THE EXAMPLE YOU ARE READING

EXZoPrimer3

37.9 OS · 13/09/2026

Open source match ↗

5 received units · includes a constructor
0 metal received · 85193 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:45–2:08 · n=787
Riptide3:51Middle 50%: 3:15–4:31 · n=782
Oppressor5:09Middle 50%: 4:11–6:07 · n=764
Advanced Metal Extractor9:57Middle 50%: 9:15–10:53 · n=667

Played most by

EpicTyrannus68games of this buildDamsko64games of this buildWaboum64games of this buildPRO_HYDRA54games of this buildMrCoolPotato51games of this build