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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 (93%)

#naval #eco · 1628 distinct matches · 209 players · 84% of Cortex Beach sea games · team won 55% of 1833 · 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 1628 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 1:43–2:07

    Some games also: Guard (30%)

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

    The example game in this phase · 6 steps
    1. Mex ×3
    2. Wind ×3
    3. Wind ×3for Air
    4. Energy storage
    5. GuardGuard
    6. ShipyardShipyarddone 2:11 · 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 (37%) · wind (37%) · submarine (36%) · wind (35%)

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

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

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • 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%) · Radar Tower (40%) · tidal (40%) · wind (34%)

    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 · 62 steps
    1. Mex
    2. GuardGuard
    3. Tidal
    4. OppressorDestroyerdone 6:10 · typical 5:15
    5. ThistleThistle
    6. Tidal
    7. Radar TowerRadar Tower
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. GuardGuard
    10. RiptideFrigate
    11. Wind
    12. UrchinUrchin
    13. Wind
    14. Death CavalryDeath Cavalry
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Wind
    17. RiptideFrigate
    18. Wind ×3
    19. Construction ShipCon ship
    20. Wind ×2
    21. RiptideFrigate
    22. Wind ×2
    23. OppressorDestroyer
    24. Wind ×3
    25. HerringMissile corvette
    26. Wind
    27. Death CavalryDeath Cavalry
    28. Wind ×2
    29. RiptideFrigate
    30. Wind
    31. Construction ShipCon ship
    32. Wind
    33. RiptideFrigate
    34. Wind
    35. RiptideFrigate
    36. Advanced Metal ExtractorT2 mexdone 11:03 · typical 9:59
    37. OppressorDestroyer
    38. Wind
    39. HerringMissile corvette
    40. Wind
    41. Death CavalryDeath Cavalry
    42. RiptideFrigate
    43. Advanced Metal ExtractorT2 mex
    44. Wind
    45. OrcaSubmarine
    46. Construction ShipCon ship
    47. RiptideFrigate ×2
    48. Advanced Metal ExtractorT2 mex
    49. RiptideFrigate
    50. OppressorDestroyer
    51. HerringMissile corvette
    52. Death CavalryDeath Cavalry
    53. Advanced Metal ExtractorT2 mex
    54. RiptideFrigate
    55. Construction ShipCon ship
    56. RiptideFrigate ×3
    57. OppressorDestroyer
    58. HerringMissile corvette
    59. Death CavalryDeath Cavalry
    60. RiptideFrigate
    61. Construction ShipCon ship
    62. RiptideFrigate ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is NihilisticDuck73's (34 OS, 14/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:45 · in 77% of games

You get

  • Finch1 Finch from Airfirst at 2:00 · in 80% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 64% of games
  • Construction Bot1 Con bot from Geofirst at 2:26 · in 70% 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

1833 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003718175101
6:005051484280
7:006495980591
8:00807616611000
9:00968426141531
10:001154137112310
11:001368447273081
12:001624857883861
13:001892268754629
14:002164779245680
15:002455588886526
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

NihilisticDuck73

34.3 OS · 14/10/2026

Open source match ↗

7 received units · includes a constructor
335 metal received · 47081 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:43–2:07 · n=1830
Riptide3:50Middle 50%: 3:12–4:34 · n=1786
Oppressor5:15Middle 50%: 4:29–6:07 · n=1766
Advanced Metal Extractor9:59Middle 50%: 9:17–10:54 · n=1543

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildfanboi64games of this buildSHOGVN64games of this build