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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 · 7 steps
    1. Mex ×3
    2. Wind ×2
    3. Wind ×2for Air
    4. GuardGuard ×2
    5. Energy storage
    6. Tidal ×2
    7. ShipyardShipyarddone 2:26 · 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 · 14 steps
    1. Construction ShipCon ship ×2
    2. RiptideFrigatedone 2:59 · typical 3:50
    3. OrcaSubmarinedone 4:01
    4. Mex ×4
    5. GuardGuard
    6. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    7. HerringMissile corvette
    8. GuardGuard
    9. Mex
    10. RiptideFrigate
    11. UrchinUrchin
    12. OppressorDestroyerdone 5:36 · typical 5:14
    13. ThistleThistle
    14. 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 · 70 steps
    1. Mex
    2. OppressorDestroyer
    3. Twin GuardTwin Guard
    4. SupporterGunboat ×2
    5. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    6. Construction ShipCon ship
    7. SupporterGunboat
    8. Radar TowerRadar Tower
    9. SupporterGunboat ×3
    10. Advanced Metal ExtractorT2 mexdone 8:37 · typical 9:58
    11. Death CavalryDeath Cavalry
    12. Dragon's MawDragon's Maw
    13. SupporterGunboat ×2
    14. WardenWarden
    15. SupporterGunboat ×3
    16. Tidal
    17. RiptideFrigate
    18. Tidal
    19. Advanced Metal ExtractorT2 mex
    20. Tidal
    21. RiptideFrigate
    22. Tidal
    23. Naval Construction Turret
    24. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    25. OrcaSubmarine
    26. OppressorDestroyer
    27. Naval Construction Turret
    28. Mex
    29. Construction ShipCon ship
    30. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    31. Mex
    32. Construction ShipCon ship ×2
    33. Tidal
    34. BeholderBeholder
    35. Naval Construction Turret
    36. Tidal ×2
    37. Naval Construction Turret
    38. SlingshotSlingshot
    39. Tidal ×2
    40. Advanced ShipyardAdvanced Shipyarddone 13:59
    41. SlingshotSlingshot
    42. Tidal
    43. HerringMissile corvette
    44. Tidal
    45. SlingshotSlingshot
    46. Tidal ×4
    47. Advanced Metal ExtractorT2 mex
    48. Tidal
    49. SupporterGunboat
    50. Tidal
    51. Naval Energy Converter
    52. Tidal ×3
    53. Naval Energy Storage
    54. Tidal
    55. SupporterGunboat
    56. Tidal ×2
    57. Advanced Construction SubAdvanced Construction Sub
    58. SupporterGunboat
    59. Naval Energy Converter
    60. Tidal
    61. SupporterGunboat
    62. Tidal ×2
    63. SupporterGunboat
    64. Naval Energy Converter
    65. PathfinderPathfinder
    66. SupporterGunboat
    67. Tidal
    68. PathfinderPathfinder
    69. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    70. Tidal ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is Flerpz's (32 OS, 12/08/2026); 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

Flerpz

31.8 OS · 12/08/2026

Open source match ↗

7 received units · includes a constructor
14 metal received · 71597 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