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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 · 805 distinct matches · 107 players · 84% of Cortex Beach sea games · team won 55% of 869 · 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 805 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 · 7 steps
    1. Mex ×2
    2. Windfor Air
    3. Mex
    4. Wind ×2for Air
    5. Wind ×2
    6. Energy storage
    7. ShipyardShipyarddone 1:59 · 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 (35%)

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

    The example game in this phase · 14 steps
    1. Construction ShipCon ship ×2
    2. Mex
    3. Construction ShipCon ship
    4. HerringMissile corvette
    5. Mex
    6. OppressorDestroyerdone 3:29 · typical 5:11
    7. Mex ×2
    8. HerringMissile corvette
    9. Mex
    10. HerringMissile corvette ×2
    11. OppressorDestroyer
    12. Con turret
    13. Mex ×2
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
  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 (34%)

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

Counts are medians over the build's games: half of them build more, half fewer. The example game is El_Turco's (38 OS, 05/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:53 · in 78% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 83% 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 2:34 · 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

869 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025252150
5:003701197100
6:005031535254
7:0064751091588
8:00806518251014
9:00967728531605
10:001158639942322
11:001381252133070
12:001635261643806
13:001915471834609
14:002195582755711
15:002494592656551
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

El_Turco

37.6 OS · 05/08/2026

Open source match ↗

10 received units · includes a constructor
1288 metal received · 316447 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=867
Riptide3:52Middle 50%: 3:16–4:34 · n=855
Oppressor5:11Middle 50%: 4:15–6:08 · n=840
Advanced Metal Extractor9:57Middle 50%: 9:16–10:53 · n=737

Played most by

EpicTyrannus85games of this buildDamsko66games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build