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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 · 825 distinct matches · 110 players · 84% of Cortex Beach sea games · team won 54% of 892 · 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 825 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 1:40 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×3
    3. ShipyardShipyarddone 1:29 · 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 (44%) · 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 · 20 steps
    1. HerringMissile corvette
    2. RiptideFrigatedone 2:12 · typical 3:52
    3. Wind ×4
    4. Construction ShipCon ship ×2
    5. Wind ×2
    6. Construction ShipCon ship
    7. Energy storage
    8. Mex
    9. Aircraft PlantAircraft Plantdone 3:50
    10. Mex
    11. Mex
    12. Naval Energy Converter
    13. HephaestusHeavy transport
    14. UrchinUrchin
    15. Naval Energy Converter
    16. Con turret
    17. Mex
    18. Naval Energy Converter
    19. OppressorDestroyerdone 5:59 · typical 5:11
    20. Naval Energy Converter
  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 (39%) · 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 · 96 steps
    1. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    2. Naval Construction Turret
    3. Wind
    4. Mex
    5. Wind
    6. HerringMissile corvette
    7. Mex
    8. Tidal
    9. Wind
    10. RiptideFrigate
    11. Tidal
    12. Wind
    13. Radar TowerRadar Tower
    14. Wind
    15. RiptideFrigate
    16. GuardGuard
    17. Tidal
    18. Wind
    19. GuardGuard
    20. Tidal
    21. Wind
    22. RiptideFrigate
    23. GuardGuard
    24. Tidal
    25. Wind
    26. Tidal
    27. RiptideFrigate
    28. Wind
    29. Tidal
    30. Advanced Metal ExtractorT2 mexdone 8:50 · typical 9:58
    31. Radar TowerRadar Tower
    32. ThistleThistle
    33. Wind
    34. Tidal
    35. Wind
    36. OrcaSubmarinedone 8:55
    37. Tidal
    38. Mex
    39. Wind
    40. Tidal
    41. Wind ×2
    42. Tidal
    43. Wind
    44. OrcaSubmarine
    45. Advanced Metal ExtractorT2 mex
    46. Wind
    47. HerringMissile corvette ×2
    48. Mex
    49. Tidal
    50. HerringMissile corvette
    51. Tidal ×3
    52. Advanced ShipyardAdvanced Shipyarddone 10:59
    53. Mex
    54. Advanced Metal ExtractorT2 mex
    55. Mex
    56. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    57. UrchinUrchin
    58. Advanced Construction SubAdvanced Construction Sub
    59. BrimstoneAnti-swarm shipdone 11:23
    60. SlingshotSlingshot
    61. BrimstoneAnti-swarm ship
    62. SlingshotSlingshot
    63. Advanced Construction SubAdvanced Construction Sub
    64. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    65. PathfinderPathfinder
    66. Con turret
    67. PathfinderPathfinder
    68. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:04
    69. Advanced Metal ExtractorT2 mex
    70. PathfinderPathfinder
    71. Con turret
    72. OasisOasis
    73. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    74. Con turret
    75. Naval Construction Turret ×2
    76. Con turret
    77. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    78. Tidal
    79. Con turret
    80. Tidal
    81. OasisOasis
    82. Con turret
    83. Tidal ×2
    84. Con turret
    85. Tidal
    86. Con turret
    87. Fusion ReactorFusionnot finished by 15:00
    88. Tidal
    89. Con turret
    90. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    91. Tidal
    92. Naval Energy Converter
    93. Con turret ×3
    94. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    95. Naval Energy Converter
    96. Aircraft PlantAircraft Plantnot finished by 15:00

Counts are medians over the build's games: half of them build more, half fewer. The example game is TekilaPaf's (37 OS, 18/08/2026); 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 83% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 61% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:28 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:35 · 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

892 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156900
4:0025322150
5:003702197100
6:005028539254
7:0064751094590
8:00805918301030
9:00967428311593
10:001157339532337
11:001378351733061
12:001632161573805
13:001909171674590
14:002187982255701
15:002490392216529
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

37.3 OS · 18/08/2026

Open source match ↗

7 received units · includes a constructor
292 metal received · 26220 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=890
Riptide3:52Middle 50%: 3:15–4:34 · n=877
Oppressor5:11Middle 50%: 4:17–6:08 · n=861
Advanced Metal Extractor9:58Middle 50%: 9:17–10:53 · n=755

Played most by

EpicTyrannus86games of this buildDamsko67games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build