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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 · 796 distinct matches · 106 players · 84% of Cortex Beach sea games · team won 55% of 859 · 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 796 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 (36%)

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

    The example game in this phase · 23 steps
    1. Windfor Air
    2. Construction ShipCon ship
    3. Wind ×2for Air
    4. Tidal ×2
    5. Construction ShipCon ship
    6. Tidal
    7. Mex
    8. HerringMissile corvette
    9. Wind
    10. Mex
    11. HerringMissile corvette
    12. Mex
    13. RiptideFrigatedone 3:24 · typical 3:52
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. SlingshotSlingshot
    16. OppressorDestroyerdone 4:29 · typical 5:10
    17. Mex
    18. Mex ×2
    19. GuardGuard
    20. RiptideFrigate
    21. Con turret
    22. RiptideFrigate
    23. ThistleThistle ×2
  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 (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 · 73 steps
    1. Death CavalryDeath Cavalry
    2. UrchinUrchin
    3. Wind ×3
    4. Construction ShipCon ship
    5. Wind ×2
    6. Construction ShipCon ship
    7. Wind
    8. Energy storage
    9. OppressorDestroyer
    10. SupporterGunboat ×2
    11. Wind
    12. SupporterGunboat
    13. HerringMissile corvette
    14. Wind
    15. RiptideFrigate
    16. Wind ×2
    17. OppressorDestroyer
    18. Wind ×2
    19. RiptideFrigate
    20. Wind
    21. RiptideFrigate
    22. Wind
    23. Mex
    24. GuardGuard ×2
    25. Death CavalryDeath Cavalry
    26. Wind
    27. Construction ShipCon ship
    28. Wind ×2
    29. Construction ShipCon ship
    30. Wind
    31. OppressorDestroyer
    32. Wind
    33. Naval Construction Turret
    34. Advanced Metal ExtractorT2 mexdone 10:02 · typical 9:57
    35. OppressorDestroyer
    36. HerringMissile corvette
    37. Advanced ShipyardAdvanced Shipyarddone 10:45
    38. RiptideFrigate
    39. Death CavalryDeath Cavalry
    40. Construction ShipCon ship
    41. Advanced Metal ExtractorT2 mex
    42. Naval Construction Turret
    43. Advanced Metal ExtractorT2 mex
    44. BeholderBeholder
    45. Advanced Construction SubAdvanced Construction Sub
    46. Mex
    47. UrchinUrchin ×2
    48. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:05
    49. UrchinUrchin
    50. Naval Construction Turret
    51. DespotBattleshipdone 14:12
    52. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    53. UrchinUrchin
    54. Advanced Metal ExtractorT2 mex
    55. UrchinUrchin
    56. Tidal ×2
    57. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    58. Tidal
    59. UrchinUrchin
    60. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    61. UrchinUrchin
    62. Tidal ×3
    63. PhantasmRadar jammer ship
    64. Tidal
    65. Wind
    66. BuccaneerCruiserdone 14:57
    67. Tidal ×2
    68. Wind
    69. Naval Construction Turret
    70. Wind
    71. Tidal
    72. Wind
    73. Tidal

Counts are medians over the build's games: half of them build more, half fewer. The example game is Erilium's (44 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

859 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
6:005034535251
7:0064811091590
8:00807618251040
9:00968328531610
10:001159139952340
11:001381852133090
12:001636061593830
13:001915472004615
14:002195583275730
15:002495293256631
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

44.5 OS · 27/09/2026

Open source match ↗

6 received units · includes a constructor
6 metal received · 38433 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=857
Riptide3:52Middle 50%: 3:16–4:33 · n=845
Oppressor5:10Middle 50%: 4:13–6:08 · n=830
Advanced Metal Extractor9:57Middle 50%: 9:16–10:53 · n=730

Played most by

EpicTyrannus82games of this buildDamsko66games of this buildWaboum64games of this buildPRO_HYDRA58games of this buildMrCoolPotato51games of this build