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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 · 796 distinct matches · 106 players · 84% of Cortex Beach sea games · team won 55% of 859 · 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 796 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 · 6 steps
    1. Mex ×3
    2. Wind ×2
    3. Windfor Air
    4. Energy storage
    5. Wind ×2for Air
    6. ShipyardShipyarddone 1:57 · typical 1:57
  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 (43%) · wind (40%) · submarine (39%) · gunboat (36%) · con turret (36%)

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

    The example game in this phase · 15 steps
    1. Construction ShipCon ship
    2. Tidal
    3. HerringMissile corvette
    4. Tidal
    5. OppressorDestroyerdone 3:57 · typical 5:10
    6. Mex ×3
    7. Mex
    8. ShipyardShipyarddone 4:14
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. Death CavalryDeath Cavalry
    11. Construction ShipCon ship
    12. UrchinUrchin
    13. Wind
    14. RiptideFrigatedone 5:17 · typical 3:52
    15. Construction ShipCon ship
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine10Wind
    Builders
    • Death Cavalry1 Death Cavalry
    • Construction Ship1 Con ship
    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 (48%) · Guard (47%) · Radar Tower (41%) · tidal (38%) · con turret (35%)

    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 · 99 steps
    1. Wind
    2. Mex ×2
    3. RiptideFrigate
    4. Wind
    5. JellyfishJellyfish
    6. RiptideFrigate
    7. Wind
    8. RiptideFrigate
    9. Naval Construction Turret
    10. Construction ShipCon ship
    11. Con turret
    12. Mex
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Mex
    15. BeholderBeholder
    16. Naval Hovercraft PlatformNaval Hovercraft Platformdone 7:26
    17. GuardGuard
    18. Wind ×2
    19. BeholderBeholder
    20. Wind ×2
    21. Con turret
    22. MangonelHover rocket bot
    23. BeholderBeholder
    24. Wind
    25. MangonelHover rocket bot
    26. Naval Construction Turret
    27. Wind ×2
    28. BeholderBeholder
    29. Wind
    30. MangonelHover rocket bot
    31. Wind ×2
    32. MangonelHover rocket bot
    33. Wind ×2
    34. GoonGoon
    35. Wind
    36. GoonGoon
    37. Wind
    38. GoonGoon
    39. Wind
    40. GoonGoon
    41. Wind
    42. GoonGoon ×2
    43. Wind
    44. GoonGoon
    45. Wind
    46. GoonGoon
    47. Advanced Metal ExtractorT2 mexdone 9:32 · typical 9:57
    48. GoonGoon
    49. Wind
    50. GoonGoon
    51. Wind
    52. ShipyardShipyarddone 9:53
    53. Wind
    54. Advanced Metal ExtractorT2 mex
    55. Wind
    56. Naval Construction Turret
    57. HerringMissile corvette
    58. Wind
    59. HerringMissile corvette ×2
    60. Wind
    61. Advanced Metal ExtractorT2 mex
    62. Wind
    63. RiptideFrigate
    64. Death CavalryDeath Cavalry
    65. Wind
    66. Naval Construction Turret
    67. Wind
    68. OrcaSubmarinedone 11:06
    69. Wind ×5
    70. OrcaSubmarine
    71. Mex
    72. Wind
    73. Naval Construction Turret
    74. Wind ×2
    75. RiptideFrigate
    76. Wind ×2
    77. Naval Construction Turret
    78. Wind
    79. Mex
    80. Construction ShipCon ship
    81. Wind ×2
    82. OppressorDestroyer
    83. Wind ×3
    84. Mex
    85. Wind
    86. Advanced ShipyardAdvanced Shipyarddone 13:32
    87. Wind ×4
    88. UrchinUrchin
    89. Advanced Construction SubAdvanced Construction Sub
    90. Mex
    91. Advanced Metal ExtractorT2 mex
    92. Naval Construction Turret
    93. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:51
    94. DespotBattleshipnot finished by 15:00
    95. Tidal
    96. Naval Construction Turret
    97. Tidal
    98. Wind
    99. Naval Radar / Sonar TowerNaval Radar / Sonar Tower

Counts are medians over the build's games: half of them build more, half fewer. The example game is MrCoolPotato's (42 OS, 04/09/2026); 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 1:58 · in 82% 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 2:27 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:33 · in 32% 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

859 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156700
4:0025252150
5:003701197100
6:005034535251
7:0064811091590
8:00807618251040
9:00968328531610
10:001159139952340
11:001381852133090
12:001636061593830
13:001915472004615
14:002195583275730
15:002495293256631
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

MrCoolPotato

42.5 OS · 04/09/2026

Open source match ↗

5 received units · includes a constructor
33 metal received · 36488 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=857
Riptide3:52Middle 50%: 3:16–4:33 · n=845
Oppressor5:10Middle 50%: 4:13–6:08 · n=830
Advanced Metal Extractor9:57Middle 50%: 9:16–10:53 · n=730

Played most by

EpicTyrannus82games of this buildDamsko66games of this buildWaboum64games of this buildPRO_HYDRA58games of this buildMrCoolPotato51games of this build