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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 · 935 distinct matches · 113 players · 83% of Cortex Beach sea games · team won 54% of 1009 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:57

  1. Grab mex and tidal, push com to sea to build shipyard.
  2. Finish shipyard and start pumping frigate and destroyer.
  3. Field first frigate to contest enemy sea entry or hold vision.
  4. Add destroyer to the mix as the fight for sea develops.
  5. Shift into advanced metal extractor as the economy transition.

Phase by phase

TYPICAL OF ITS 935 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 ~1:56, middle half 1:41–2:07

    Some games also: tidal (31%)

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

    The example game in this phase · 5 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Energy storage
    4. Windfor Air
    5. ShipyardShipyarddone 1:39 · 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%) · wind (39%) · submarine (38%) · mex (36%) · gunboat (36%)

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

    The example game in this phase · 18 steps
    1. Tidal
    2. Construction ShipCon ship ×2
    3. Tidal ×3
    4. Mex
    5. OrcaSubmarinedone 3:01
    6. Mex ×2
    7. RiptideFrigatedone 3:29 · typical 3:49
    8. Mex ×2
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. UrchinUrchin
    11. RiptideFrigate
    12. OppressorDestroyerdone 5:00 · typical 5:12
    13. Tidal
    14. UrchinUrchin
    15. Wind
    16. Tidal
    17. Wind
    18. Mex
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • 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 (40%) · con turret (35%)

    By 10:00 in all: 9 mex · 11 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 68 steps
    1. HerringMissile corvette
    2. Mex
    3. Wind
    4. Radar TowerRadar Tower
    5. Construction ShipCon ship
    6. ThistleThistle
    7. GuardGuard
    8. Construction ShipCon ship
    9. Death CavalryDeath Cavalry
    10. Wind ×2
    11. RiptideFrigate ×2
    12. Wind
    13. RiptideFrigate
    14. Wind
    15. OppressorDestroyer
    16. Wind
    17. Con turret
    18. OrcaSubmarine
    19. HerringMissile corvette
    20. Construction ShipCon ship
    21. Death CavalryDeath Cavalry
    22. RiptideFrigate ×2
    23. Wind
    24. RiptideFrigate
    25. OppressorDestroyer
    26. Wind
    27. OrcaSubmarine
    28. HerringMissile corvette
    29. Advanced Metal ExtractorT2 mexdone 10:45 · typical 9:58
    30. Construction ShipCon ship
    31. Death CavalryDeath Cavalry
    32. RiptideFrigate ×3
    33. Advanced Metal ExtractorT2 mex
    34. OppressorDestroyer
    35. UrchinUrchin
    36. OrcaSubmarine
    37. Advanced Metal ExtractorT2 mex
    38. Mex
    39. HerringMissile corvette
    40. Construction ShipCon ship
    41. UrchinUrchin
    42. Death CavalryDeath Cavalry
    43. RiptideFrigate
    44. Con turret
    45. RiptideFrigate
    46. Mex
    47. UrchinUrchin
    48. RiptideFrigate
    49. Advanced Metal ExtractorT2 mex
    50. Wind
    51. OppressorDestroyer
    52. Wind
    53. UrchinUrchin
    54. Wind ×2
    55. OrcaSubmarine
    56. Wind
    57. Mex
    58. Fusion ReactorFusionnot finished by 15:00
    59. Wind
    60. UrchinUrchin
    61. Wind
    62. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    63. HerringMissile corvette
    64. Wind
    65. Construction ShipCon ship
    66. Death CavalryDeath Cavalry
    67. Wind
    68. Mex

Counts are medians over the build's games: half of them build more, half fewer. The example game is Zus's (37 OS, 08/10/2026); 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 2:14 · in 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 67% of games
  • Construction Bot1 Con bot from Geofirst at 2:27 · in 70% of games
  • Hercules1 Light transport from Airfirst at 2:32 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:09 · in 89% 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

1009 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156900
4:002539051
5:003716197100
6:005043535261
7:0064861071591
8:00805618051014
9:00967627761581
10:001156439152311
11:001375549693051
12:001628260643830
13:001909071214615
14:002186582015721
15:002489893256610
WHAT THE NUMBERS SAY

Standard sea-first play for Beach sea, with the lowest team win rate of the roles shown at 54% and a big gap in metal destroyed vs lost by 15:00.

  • + Metal produced hits 24892 by 15:00, second highest overall shown.
  • − Enemy metal destroyed only 9261 by 15:00 against own losses of 6529, a tight margin for a sea role.
THE EXAMPLE YOU ARE READING

Zus

36.8 OS · 08/10/2026

Open source match ↗

7 received units · includes a constructor
147 metal received · 44238 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:41–2:07 · n=1007
Riptide3:49Middle 50%: 3:15–4:32 · n=988
Oppressor5:12Middle 50%: 4:22–6:07 · n=970
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=853

Played most by

EpicTyrannus99games of this buildDamsko68games of this buildKbot_my_Ahole64games of this buildWaboum64games of this buildPRO_HYDRA63games of this build
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas