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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 (92%)

#naval #eco · 1694 distinct matches · 220 players · 84% of Cortex Beach sea games · team won 55% of 1903 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:56

  1. Open 3 mex, then send com to sea to build Shipyard by 1:56.
  2. Add tidal generators, wind and more mex to fund the shipyard.
  3. Pump Riptide first, then Oppressor to contest enemy sea entry.
  4. Get T2 constructor out to start scaling the naval economy.
  5. Transition into Advanced Metal Extractor as the economy phase begins.

Phase by phase

TYPICAL OF ITS 1694 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 ~1:56, middle half 1:44–2:07

    Some games also: Guard (31%)

    By 1:39 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 4 steps
    1. Mex ×3
    2. Wind
    3. Windfor Air
    4. ShipyardShipyarddone 1:20 · typical 1:56
  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 (46%) · mex (38%) · wind (37%) · submarine (37%) · wind (35%)

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

    The example game in this phase · 23 steps
    1. Tidal
    2. Construction ShipCon ship
    3. Tidal
    4. Wind ×2for Air
    5. Wind
    6. Construction ShipCon ship
    7. Mex ×2
    8. RiptideFrigatedone 2:45 · typical 3:50
    9. Wind ×2
    10. Mex
    11. Wind
    12. HerringMissile corvette
    13. Wind
    14. Energy storage
    15. RiptideFrigate
    16. Mex
    17. Con turret
    18. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    19. RiptideFrigate
    20. OppressorDestroyerdone 4:37 · typical 5:16
    21. HerringMissile corvette
    22. RiptideFrigate
    23. Wind
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine8Wind
    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 (49%) · Guard (47%) · tidal (40%) · Radar Tower (40%) · wind (35%)

    By 10:00 in all: 9 mex · 10 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 87 steps
    1. Mex
    2. Wind
    3. Mex
    4. RiptideFrigate
    5. Wind ×2
    6. RiptideFrigate
    7. Wind
    8. UrchinUrchin
    9. Wind
    10. Advanced Metal ExtractorT2 mexdone 7:16 · typical 9:59
    11. RiptideFrigate
    12. Wind ×2
    13. GuardGuard
    14. RiptideFrigate
    15. Wind
    16. GuardGuard
    17. Radar TowerRadar Tower
    18. Wind
    19. RiptideFrigate
    20. Wind
    21. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    22. Advanced Metal ExtractorT2 mex
    23. UrchinUrchin
    24. Wind
    25. Death CavalryDeath Cavalry
    26. Wind
    27. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    28. OppressorDestroyer
    29. Wind ×2
    30. Advanced Metal ExtractorT2 mex
    31. Wind
    32. Mex
    33. HerringMissile corvette
    34. EelSubmarinedone 8:52
    35. Wind
    36. RiptideFrigate
    37. Wind
    38. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    39. Mex
    40. Wind
    41. RiptideFrigate
    42. UrchinUrchin
    43. Wind
    44. SupporterGunboat
    45. Wind
    46. SupporterGunboat
    47. Wind
    48. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    49. SupporterGunboat
    50. Wind
    51. Death CavalryDeath Cavalry
    52. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    53. Wind
    54. Advanced Metal ExtractorT2 mex
    55. Wind
    56. OppressorDestroyer
    57. Wind ×2
    58. HerringMissile corvette
    59. Wind ×2
    60. RiptideFrigate
    61. Wind
    62. RiptideFrigate
    63. HerringMissile corvette
    64. Wind
    65. Naval Construction Turret ×2
    66. Wind
    67. Death CavalryDeath Cavalry ×2
    68. Wind
    69. Death CavalryDeath Cavalry
    70. Wind
    71. Naval Construction Turret
    72. Death CavalryDeath Cavalry
    73. OppressorDestroyer
    74. Naval Construction Turret
    75. OppressorDestroyer
    76. Naval Construction Turret
    77. Advanced ShipyardAdvanced Shipyarddone 13:36
    78. HerringMissile corvette
    79. DolphinDolphin
    80. RiptideFrigate
    81. DolphinDolphin
    82. Wind
    83. Advanced Construction SubAdvanced Construction Sub
    84. RiptideFrigate
    85. Wind ×2
    86. Death CavalryDeath Cavalry
    87. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is matje2o's (34 OS, 15/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:44 · in 77% of games

You get

  • Finch1 Finch from Airfirst at 2:00 · in 79% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:15 · in 64% of games
  • Construction Bot1 Con bot from Geofirst at 2:26 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:32 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:08 · 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

1903 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003717175101
6:005051482270
7:006495971581
8:0080861661995
9:00968926141510
10:001155037112271
11:001369947043042
12:001624457803831
13:001890868724565
14:002167079245585
15:002456588866482
WHAT THE NUMBERS SAY

Standard Beach sea play has the lowest team win rate of these builds and destroys far less enemy metal early than it loses eco time.

  • + Metal produced climbs to 24945 by 15:00, the highest of all six roles.
  • + Riptide and Oppressor together make 63% of army, a focused naval composition.
  • − Enemy metal destroyed is only 200 by 5:00, barely contesting early sea.
  • − T2 factory only reached in 35% of games, behind other roles' T2 timing.
THE EXAMPLE YOU ARE READING

matje2o

33.6 OS · 15/10/2026

Open source match ↗

7 received units · includes a constructor
27 metal received · 33665 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:44–2:07 · n=1900
Riptide3:50Middle 50%: 3:12–4:34 · n=1854
Oppressor5:16Middle 50%: 4:30–6:08 · n=1834
Advanced Metal Extractor9:59Middle 50%: 9:17–10:54 · n=1604

Played most by

EpicTyrannus122games of this buildDamsko69games of this buildfanboi67games of this buildKbot_my_Ahole67games of this buildSHOGVN66games of this build