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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 · 813 distinct matches · 108 players · 84% of Cortex Beach sea games · team won 55% of 878 · 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 813 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 1:44–2:08

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

    The example game in this phase · 2 steps
    1. Mex ×3
    2. ShipyardShipyarddone 1:09 · 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 · 21 steps
    1. Tidal
    2. Construction ShipCon ship
    3. Wind ×2for Air
    4. Wind
    5. Windfor Air
    6. Wind ×2
    7. HerringMissile corvette
    8. Mex
    9. RiptideFrigatedone 2:49 · typical 3:52
    10. Wind ×2
    11. Mex
    12. Energy storage
    13. Construction ShipCon ship
    14. Mex
    15. HerringMissile corvette
    16. Mex
    17. OrcaSubmarinedone 3:58
    18. Con turret
    19. OppressorDestroyerdone 4:52 · typical 5:11
    20. Mex ×2
    21. RiptideFrigate
  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 · 85 steps
    1. Wind
    2. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    3. RiptideFrigate
    4. Wind
    5. GuardGuard
    6. Wind
    7. GuardGuard
    8. HerringMissile corvette
    9. GuardGuard
    10. Wind
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. Radar TowerRadar Tower
    13. ThistleThistle
    14. Wind
    15. HerringMissile corvette
    16. ThistleThistle
    17. Wind
    18. UrchinUrchin
    19. HerringMissile corvette
    20. ThistleThistle
    21. Wind
    22. HerringMissile corvette
    23. Wind ×2
    24. Construction ShipCon ship
    25. Wind ×2
    26. OppressorDestroyer
    27. Wind
    28. Converter
    29. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    30. OppressorDestroyer
    31. Converter ×3
    32. Death CavalryDeath Cavalry
    33. Wind
    34. Death CavalryDeath Cavalry
    35. Wind
    36. Death CavalryDeath Cavalry
    37. GuardGuard
    38. Advanced Metal ExtractorT2 mexdone 10:15 · typical 9:58
    39. Wind
    40. Death CavalryDeath Cavalry
    41. Wind
    42. HerringMissile corvette
    43. Wind
    44. HerringMissile corvette
    45. Wind
    46. OppressorDestroyer
    47. Advanced Metal ExtractorT2 mex
    48. OppressorDestroyer
    49. GuardGuard
    50. OppressorDestroyer ×2
    51. HerringMissile corvette
    52. Advanced Metal ExtractorT2 mex
    53. HerringMissile corvette ×3
    54. Death CavalryDeath Cavalry
    55. OppressorDestroyer
    56. RiptideFrigate
    57. Wind
    58. Naval Construction Turret
    59. Wind ×2
    60. Naval Construction Turret
    61. Wind
    62. Advanced Metal ExtractorT2 mex
    63. OppressorDestroyer
    64. Wind
    65. Naval Construction Turret
    66. Wind
    67. Naval Construction Turret
    68. Wind ×3
    69. OppressorDestroyer
    70. Wind ×2
    71. OppressorDestroyer
    72. Wind
    73. Fusion ReactorFusionnot finished by 15:00
    74. OppressorDestroyer
    75. Wind ×2
    76. HerringMissile corvette
    77. Wind
    78. HerringMissile corvette
    79. Construction ShipCon ship
    80. Wind
    81. Construction ShipCon ship
    82. Wind
    83. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    84. Death CavalryDeath Cavalry
    85. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is TekilaPaf's (35 OS, 13/08/2026); 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 2:13 · 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

878 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025322150
5:003702197100
6:005032534253
7:0064761094589
8:00807318301025
9:00968328541608
10:001159239882343
11:001382052163080
12:001635261753814
13:001911472054610
14:002195382905714
15:002492492686556
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

TekilaPaf

35.5 OS · 13/08/2026

Open source match ↗

6 received units · includes a constructor
920 metal received · 44199 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:44–2:08 · n=876
Riptide3:52Middle 50%: 3:16–4:34 · n=864
Oppressor5:11Middle 50%: 4:16–6:08 · n=849
Advanced Metal Extractor9:58Middle 50%: 9:16–10:53 · n=744

Played most by

EpicTyrannus85games of this buildDamsko67games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build