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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 · 812 distinct matches · 107 players · 84% of Cortex Beach sea games · team won 55% of 877 · 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 812 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 1:41 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 12 steps
    1. Mex ×3
    2. Windfor Air
    3. Wind ×2
    4. Windfor Air
    5. Bot LabBot Labdone 1:09
    6. Wind
    7. GraverobberGraverobber ×2
    8. Wind
    9. Construction BotCon bot ×3
    10. GraverobberGraverobber
    11. GruntGrunt
    12. ShipyardShipyarddone 2:47 · 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 · 11 steps
    1. Mex
    2. Construction ShipCon ship ×2
    3. Mex
    4. OrcaSubmarinedone 3:40
    5. Mex
    6. RiptideFrigatedone 3:56 · typical 3:52
    7. Mex
    8. JellyfishJellyfish
    9. RiptideFrigate
    10. HerringMissile corvette
    11. Mex
  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 (38%) · 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 · 83 steps
    1. RiptideFrigate
    2. ShipyardShipyarddone 5:41
    3. OppressorDestroyernot finished by 15:00 · typical 5:11
    4. RiptideFrigate
    5. Death CavalryDeath Cavalry
    6. Wind
    7. RiptideFrigate
    8. Wind
    9. RiptideFrigate
    10. Wind
    11. Construction ShipCon ship ×2
    12. Wind ×2
    13. Death CavalryDeath Cavalry
    14. Wind
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Wind
    17. RiptideFrigate
    18. Wind
    19. RiptideFrigate
    20. Wind
    21. RiptideFrigate
    22. Wind
    23. RiptideFrigate
    24. Wind
    25. Construction ShipCon ship
    26. Wind
    27. Advanced Metal ExtractorT2 mexdone 10:00 · typical 9:58
    28. Wind ×3
    29. OppressorDestroyer
    30. Naval Construction Turret
    31. BeholderBeholder
    32. Tidal
    33. Wind
    34. BeholderBeholder ×2
    35. Wind
    36. Tidal
    37. Naval Construction Turret ×2
    38. Tidal
    39. Naval Construction Turret
    40. Advanced Metal ExtractorT2 mex
    41. Tidal
    42. SupporterGunboat
    43. Mex
    44. SupporterGunboat
    45. OppressorDestroyer
    46. Tidal
    47. Naval Construction Turret
    48. Tidal ×4
    49. OppressorDestroyer
    50. Advanced Metal ExtractorT2 mex
    51. Tidal
    52. Mex
    53. Tidal ×8
    54. OrcaSubmarine
    55. Tidal
    56. ShipyardShipyarddone 12:30
    57. Tidal
    58. UrchinUrchin
    59. OrcaSubmarine
    60. Tidal
    61. UrchinUrchin
    62. Tidal
    63. SupporterGunboat
    64. Tidal
    65. SupporterGunboat
    66. Tidal
    67. Advanced Metal ExtractorT2 mex
    68. SupporterGunboat
    69. Tidal
    70. OrcaSubmarine
    71. Tidal
    72. ShipyardShipyarddone 13:12
    73. RiptideFrigate ×6
    74. Naval Construction Turret
    75. Fusion ReactorFusionnot finished by 15:00
    76. UrchinUrchin
    77. RiptideFrigate
    78. Naval Construction Turret
    79. RiptideFrigate
    80. Tidal
    81. RiptideFrigate
    82. Tidal
    83. RiptideFrigate ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is avaken's (42 OS, 09/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 79% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:28 · 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

877 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025312150
5:003701197100
6:005032534254
7:0064761096590
8:00807618331031
9:00968328541610
10:001159239942340
11:001382252133090
12:001635261643821
13:001911472004611
14:002195382755717
15:002492992706561
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

avaken

42.4 OS · 09/08/2026

Open source match ↗

5 received units · includes a constructor
207 metal received · 15621 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=875
Riptide3:52Middle 50%: 3:16–4:34 · n=863
Oppressor5:11Middle 50%: 4:16–6:08 · n=848
Advanced Metal Extractor9:58Middle 50%: 9:16–10:53 · n=743

Played most by

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