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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 · 1591 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1795 · 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 1591 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 · 8 steps
    1. Mex ×2
    2. Wind
    3. Mex
    4. Windfor Air
    5. Energy storage
    6. Wind ×2for Air
    7. Wind
    8. ShipyardShipyarddone 1:56 · 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 (36%) · wind (36%)

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

    The example game in this phase · 18 steps
    1. HerringMissile corvette
    2. Wind
    3. Construction ShipCon ship ×2
    4. Wind
    5. Mex
    6. Construction ShipCon ship
    7. Tidal
    8. RiptideFrigatedone 3:32 · typical 3:50
    9. Mex ×2
    10. SlingshotSlingshot
    11. RiptideFrigate
    12. Mex
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. OppressorDestroyerdone 5:25 · typical 5:14
    15. Wind
    16. Mex
    17. Wind
    18. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
  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%) · tidal (39%) · Radar Tower (39%) · 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 · 55 steps
    1. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    2. Converter
    3. Death CavalryDeath Cavalry
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. Converter
    6. Mex
    7. RiptideFrigate
    8. BeholderBeholder
    9. RiptideFrigate
    10. Wind
    11. HerringMissile corvette
    12. Wind
    13. OppressorDestroyer
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Dragon's MawDragon's Maw
    16. Wind ×2
    17. Construction ShipCon ship
    18. Converter
    19. Death CavalryDeath Cavalry
    20. RiptideFrigate
    21. Converter
    22. RiptideFrigate
    23. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    24. RiptideFrigate
    25. Wind
    26. Advanced Metal ExtractorT2 mexdone 10:36 · typical 9:58
    27. RiptideFrigate
    28. Wind
    29. RiptideFrigate
    30. Wind
    31. RiptideFrigate ×2
    32. HerringMissile corvette
    33. Death CavalryDeath Cavalry
    34. Construction ShipCon ship
    35. Death CavalryDeath Cavalry
    36. Advanced Metal ExtractorT2 mex
    37. Death CavalryDeath Cavalry
    38. Tidal
    39. Death CavalryDeath Cavalry
    40. Tidal
    41. Death CavalryDeath Cavalry
    42. Tidal
    43. RiptideFrigate
    44. Tidal
    45. Advanced Metal ExtractorT2 mex
    46. RiptideFrigate
    47. Tidal
    48. RiptideFrigate
    49. Tidal
    50. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    51. RiptideFrigate
    52. Tidal
    53. RiptideFrigate
    54. Tidal
    55. Construction ShipCon ship

Counts are medians over the build's games: half of them build more, half fewer. The example game is Zetherite's (31 OS, 06/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:46 · 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 8:08 · 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

1795 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003717176101
6:005049487280
7:006492975592
8:00807016651001
9:00967926141532
10:001153637242325
11:001368547443105
12:001625058553871
13:001895168784629
14:002167379245680
15:002456588566501
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

Zetherite

30.8 OS · 06/08/2026

Open source match ↗

5 received units · includes a constructor
28 metal received · 41334 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=1792
Riptide3:50Middle 50%: 3:12–4:34 · n=1749
Oppressor5:14Middle 50%: 4:29–6:06 · n=1728
Advanced Metal Extractor9:58Middle 50%: 9:17–10:54 · n=1519

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildfanboi63games of this build