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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 · 815 distinct matches · 109 players · 84% of Cortex Beach sea games · team won 55% of 881 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:57

  1. Open 3 mex and wind while com heads straight to sea.
  2. Drop Shipyard fast, before 2:00, to seize early sea presence.
  3. Push "frigate" out to contest enemy sea entry or hold vision.
  4. Add "destroyer" as the fleet grows.
  5. Transition into Advanced Metal Extractor to catch up on eco.

Phase by phase

TYPICAL OF ITS 815 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 ~1:57, middle half 1:44–2:08

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

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×2
    3. ShipyardShipyarddone 1:23 · typical 1:57
  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 (43%) · wind (40%) · submarine (39%) · gunboat (36%) · con turret (35%)

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

    The example game in this phase · 29 steps
    1. Construction ShipCon ship
    2. Tidal ×3
    3. Construction ShipCon ship
    4. Mex
    5. Naval Construction Turret
    6. HerringMissile corvette
    7. Mex ×2
    8. Wind
    9. Mex
    10. Wind ×2
    11. SlingshotSlingshot
    12. SupporterGunboat
    13. Mex ×2
    14. Construction ShipCon ship
    15. RiptideFrigatenot finished by 15:00 · typical 3:52
    16. OrcaSubmarinedone 3:47
    17. Wind
    18. Mex
    19. OrcaSubmarine
    20. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    21. Wind
    22. UrchinUrchin
    23. Wind
    24. Naval Energy Converter ×2
    25. OrcaSubmarine
    26. Wind
    27. Naval Construction Turret
    28. Wind
    29. Naval Construction Turret
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine10Wind
    Builders
    • Death Cavalry1 Death Cavalry
    • Construction Ship1 Con ship
    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 (41%) · tidal (39%) · con turret (34%)

    By 10:00 in all: 9 mex · 12 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 66 steps
    1. Death CavalryDeath Cavalry
    2. Wind
    3. RiptideFrigate
    4. Wind
    5. ShipyardShipyarddone 6:08
    6. RiptideFrigate
    7. Wind
    8. OrcaSubmarine
    9. Wind
    10. Naval Energy Converter
    11. UrchinUrchin
    12. Tidal
    13. RiptideFrigate
    14. Tidal
    15. Wind
    16. OrcaSubmarine
    17. Wind
    18. UrchinUrchin
    19. Wind
    20. RiptideFrigate
    21. OrcaSubmarine
    22. RiptideFrigate
    23. UrchinUrchin
    24. Wind
    25. Naval Construction Turret
    26. RiptideFrigate
    27. Wind ×2
    28. Advanced Metal ExtractorT2 mexdone 9:26 · typical 9:58
    29. Wind
    30. RiptideFrigate
    31. Wind
    32. Converter
    33. UrchinUrchin
    34. OrcaSubmarine
    35. Converter ×2
    36. Advanced Metal ExtractorT2 mex
    37. OrcaSubmarine
    38. Converter ×3
    39. RiptideFrigate
    40. Converter
    41. Wind
    42. RiptideFrigate
    43. Wind
    44. RiptideFrigate
    45. Wind
    46. Advanced Metal ExtractorT2 mex
    47. RiptideFrigate
    48. Wind
    49. RiptideFrigate
    50. Wind ×2
    51. RiptideFrigate
    52. Wind ×3
    53. Con turret ×2
    54. Cloakable Fusion ReactorCloakable Fusion Reactornot finished by 15:00
    55. Con turret
    56. Metal storage
    57. Con turret
    58. Hovercraft PlatformHovercraft Platformdone 13:24
    59. Advanced Metal ExtractorT2 mex
    60. GoonGoon ×2
    61. Con turret
    62. GoonGoon
    63. Construction HovercraftCon hovercraft
    64. GoonGoon ×10
    65. Metal storage
    66. Con turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is Fakepilot's (35 OS, 01/10/2026); 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 1:58 · in 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 61% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:27 · in 69% 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

881 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025322150
5:003703196100
6:005031534254
7:0064761096590
8:00807018331019
9:00968228531605
10:001159139782340
11:001381852093070
12:001635261593821
13:001911371834611
14:002195382645717
15:002492992576561
WHAT THE NUMBERS SAY

Standard Beach sea wins more than Geo sea's 50% and gets its Shipyard up faster, using early sea access before falling behind on land resources.

  • + Shipyard finishes by 1:57, faster than Geo sea's 3:18
  • + 54% team win rate beats the Cortex geo sea baseline
  • − Metal produced trails Geo sea's Cortex build, 24356 vs 28451 by 15:00
  • − T2 factory only lands in 35% of games by 12:42
THE EXAMPLE YOU ARE READING

Fakepilot

35.4 OS · 01/10/2026

Open source match ↗

4 received units · includes a constructor
243 metal received · 13405 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:44–2:08 · n=879
Riptide3:52Middle 50%: 3:16–4:34 · n=867
Oppressor5:11Middle 50%: 4:16–6:08 · n=851
Advanced Metal Extractor9:58Middle 50%: 9:16–10:53 · n=746

Played most by

EpicTyrannus85games of this buildDamsko67games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build