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Beach sea / Cortex / Economy first / OBSERVED BUILD

Standard beach sea

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 · 797 distinct matches · 106 players · 84% of Cortex Beach sea games · team won 55% of 860 · 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 797 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 1:45–2:08

    By 1:41 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Tidal ×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 · 24 steps
    1. Windfor Air
    2. Construction ShipCon ship
    3. Wind ×2for Air
    4. Tidal ×2
    5. Construction ShipCon ship
    6. Tidal
    7. Mex
    8. Wind
    9. HerringMissile corvette
    10. Wind ×2
    11. Mex
    12. HerringMissile corvette
    13. Energy storage
    14. Mex
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. RiptideFrigatedone 3:38 · typical 3:52
    17. Mex
    18. SlingshotSlingshot
    19. OppressorDestroyerdone 4:32 · typical 5:10
    20. Wind ×2
    21. RiptideFrigate
    22. Wind
    23. Converter
    24. Wind
  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 (40%) · tidal (38%) · con turret (35%)

    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 · 71 steps
    1. Death CavalryDeath Cavalry
    2. Wind ×2
    3. Mex
    4. Wind
    5. RiptideFrigate
    6. Mex
    7. Wind
    8. GuardGuard
    9. UrchinUrchin
    10. Wind
    11. Construction ShipCon ship
    12. Wind ×2
    13. Construction ShipCon ship
    14. UrchinUrchin
    15. Mex
    16. Wind
    17. HerringMissile corvette
    18. Wind
    19. RiptideFrigate
    20. Wind
    21. ThistleThistle
    22. Mex
    23. Wind
    24. OppressorDestroyer
    25. Wind
    26. UrchinUrchin
    27. Wind
    28. Converter
    29. RiptideFrigate
    30. Wind
    31. Death CavalryDeath Cavalry
    32. Wind
    33. RiptideFrigate
    34. Wind
    35. GuardGuard
    36. Construction ShipCon ship
    37. Wind
    38. GuardGuard
    39. Construction ShipCon ship
    40. Wind
    41. Mex
    42. HerringMissile corvette
    43. Wind
    44. GuardGuard
    45. RiptideFrigate
    46. Wind
    47. GuardGuard
    48. RiptideFrigate
    49. Wind
    50. RiptideFrigate
    51. Wind
    52. GuardGuard
    53. OppressorDestroyer
    54. Wind
    55. GuardGuard
    56. Wind
    57. Mex
    58. RiptideFrigate
    59. Wind
    60. Death CavalryDeath Cavalry
    61. Wind
    62. Mex
    63. RiptideFrigate
    64. Advanced Metal ExtractorT2 mexnot finished by 15:00 · typical 9:57
    65. Wind
    66. GuardGuard
    67. Construction ShipCon ship
    68. GuardGuard
    69. Construction ShipCon ship
    70. HerringMissile corvette
    71. RiptideFrigate ×3

Counts are medians over the build's games: half of them build more, half fewer. The example game is Erilium's (45 OS, 27/09/2026); 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 2:14 · in 62% 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 2:33 · 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

860 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156700
4:0025252150
5:003701197100
6:005033535253
7:0064791089590
8:00807318231036
9:00968328441610
10:001158939952337
11:001381552163090
12:001635861623828
13:001916272054613
14:002195883165726
15:002496293126596
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

Erilium

45.2 OS · 27/09/2026

Open source match ↗

5 received units · includes a constructor
304 metal received · 13862 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:45–2:08 · n=858
Riptide3:52Middle 50%: 3:16–4:34 · n=846
Oppressor5:10Middle 50%: 4:13–6:08 · n=831
Advanced Metal Extractor9:57Middle 50%: 9:16–10:53 · n=731

Played most by

EpicTyrannus83games of this buildDamsko66games of this buildWaboum64games of this buildPRO_HYDRA58games of this buildMrCoolPotato51games of this build