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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 · 871 distinct matches · 111 players · 83% of Cortex Beach sea games · team won 54% of 943 · 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 871 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 Turbine2Windfor allies
    • Wind Turbine2Wind
    • Energy Storage1Energy storage
    Order
    1. ShipyardShipyard after 3 mex, 2 wind, 1 energy storagedone ~1:57, middle half 1:43–2:07

    By 1:40 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 7 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind ×2
    4. Energy storage
    5. GuardGuard
    6. Wind
    7. ShipyardShipyarddone 2:06 · 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 (45%) · submarine (39%) · wind (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 · 27 steps
    1. HerringMissile corvette ×2
    2. Construction ShipCon ship ×2
    3. SupporterGunboat
    4. Mex
    5. SupporterGunboat ×2
    6. Mex
    7. Mex
    8. SupporterGunboat
    9. Mex
    10. SupporterGunboat
    11. SlingshotSlingshot
    12. SupporterGunboat
    13. OppressorDestroyernot finished by 15:00 · typical 5:11
    14. SupporterGunboat
    15. Con turret
    16. Tidal
    17. SupporterGunboat
    18. UrchinUrchin
    19. SupporterGunboat
    20. Mex
    21. SupporterGunboat
    22. Tidal
    23. Mex
    24. SupporterGunboat
    25. GuardGuard
    26. OppressorDestroyer
    27. Mex
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine9Wind
    Builders
    • Construction Ship1 Con ship
    • Death Cavalry1 Death Cavalry
    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 (40%) · 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. Wind
    2. RiptideFrigatedone 5:55 · typical 3:51
    3. GuardGuard
    4. Wind
    5. GuardGuard
    6. Wind
    7. RiptideFrigate
    8. Wind
    9. Mex
    10. GuardGuard
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. RiptideFrigate
    13. Wind
    14. Mex
    15. GuardGuard
    16. Wind
    17. HerringMissile corvette
    18. Wind
    19. Death CavalryDeath Cavalry
    20. Wind ×3
    21. OppressorDestroyer
    22. Wind ×2
    23. OrcaSubmarinedone 8:18
    24. Wind ×2
    25. Mex
    26. Wind
    27. RiptideFrigate
    28. Wind
    29. Mex
    30. RiptideFrigate
    31. Wind
    32. CyclopsCyclops
    33. Mex
    34. GuardGuard
    35. Wind
    36. RiptideFrigate
    37. Wind
    38. ThistleThistle
    39. Radar TowerRadar Tower
    40. Wind
    41. HerringMissile corvette
    42. Wind
    43. Death CavalryDeath Cavalry
    44. Wind
    45. Advanced Metal ExtractorT2 mexdone 11:14 · typical 9:58
    46. OppressorDestroyer
    47. Wind ×2
    48. SlingshotSlingshot
    49. Naval Hovercraft PlatformNaval Hovercraft Platformdone 11:20
    50. RiptideFrigate
    51. Wind
    52. Naval Construction Turret
    53. Advanced Metal ExtractorT2 mex
    54. Wind
    55. MangonelHover rocket bot
    56. RiptideFrigate
    57. Naval Construction Turret
    58. MangonelHover rocket bot
    59. Wind
    60. Tidal
    61. RiptideFrigate
    62. Wind
    63. HerringMissile corvette
    64. Tidal
    65. Death CavalryDeath Cavalry
    66. MangonelHover rocket bot
    67. Tidal
    68. MangonelHover rocket bot
    69. OppressorDestroyer
    70. Tidal
    71. Advanced Metal ExtractorT2 mex
    72. Construction HovercraftCon hovercraft
    73. Tidal ×2
    74. Construction HovercraftCon hovercraft
    75. Advanced ShipyardAdvanced Shipyarddone 13:17
    76. Naval Construction Turret
    77. Advanced Construction SubAdvanced Construction Sub
    78. Mex
    79. Advanced Metal ExtractorT2 mex
    80. Con turret
    81. Naval Construction Turret
    82. Con turret
    83. Mex
    84. PathfinderPathfinder
    85. Con turret
    86. Naval Construction Turret
    87. BeholderBeholder
    88. Tidal
    89. Wind ×2
    90. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    91. BeholderBeholder
    92. Wind
    93. Fusion ReactorFusionnot finished by 15:00
    94. BeholderBeholder ×2
    95. Wind
    96. Tidal
    97. BeholderBeholder
    98. Con turret
    99. BeholderBeholder

Counts are medians over the build's games: half of them build more, half fewer. The example game is PRO_HYDRA's (49 OS, 03/10/2026); 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 1:59 · 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 2:35 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:10 · 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

943 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00157000
4:002537051
5:003709197100
6:005035533261
7:0064751080591
8:00803818141031
9:00966427901581
10:001155639232340
11:001375250003070
12:001628061193825
13:001906771064611
14:002181181625667
15:002487692576531
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

PRO_HYDRA

49.2 OS · 03/10/2026

Open source match ↗

7 received units · includes a constructor
164 metal received · 42501 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:43–2:07 · n=941
Riptide3:51Middle 50%: 3:15–4:34 · n=925
Oppressor5:11Middle 50%: 4:18–6:08 · n=907
Advanced Metal Extractor9:58Middle 50%: 9:17–10:55 · n=797

Played most by

EpicTyrannus94games of this buildDamsko68games of this buildWaboum64games of this buildPRO_HYDRA61games of this buildKbot_my_Ahole52games of this build