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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 · 813 distinct matches · 108 players · 84% of Cortex Beach sea games · team won 55% of 878 · 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 813 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 · 4 steps
    1. Mex ×3
    2. Wind ×2
    3. GuardGuard
    4. ShipyardShipyarddone 1:34 · 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. Tidal
    2. Construction ShipCon ship
    3. Tidal ×2
    4. Construction ShipCon ship
    5. Mex
    6. HerringMissile corvette
    7. Mex
    8. Naval Construction Turret
    9. SlingshotSlingshot
    10. RiptideFrigate ×2done 3:17 · typical 3:52
    11. Naval Energy Converter
    12. Mex
    13. HerringMissile corvette
    14. Tidal
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. Death CavalryDeath Cavalry
    17. Tidal
    18. Naval Energy Converter
    19. Tidal
    20. OppressorDestroyerdone 5:45 · typical 5:11
    21. Tidal
    22. Mex
    23. UrchinUrchin
    24. Naval Energy Converter
  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 · 77 steps
    1. Tidal
    2. UrchinUrchin
    3. Converter
    4. Tidal ×2
    5. Converter
    6. RiptideFrigate
    7. Tidal
    8. UrchinUrchin
    9. Naval Energy Converter
    10. Radar TowerRadar Tower
    11. Tidal
    12. Wind
    13. HerringMissile corvette
    14. Tidal
    15. HerringMissile corvette
    16. GuardGuard
    17. UrchinUrchin
    18. Naval Construction Turret
    19. Wind
    20. OppressorDestroyer
    21. ThistleThistle
    22. DolphinDolphin
    23. Mex
    24. Wind
    25. Mex
    26. GuardGuard
    27. UrchinUrchin
    28. Wind
    29. Naval Energy Converter
    30. ThistleThistle
    31. Naval Energy Converter
    32. Bot LabBot Labdone 8:00
    33. Wind
    34. Naval Energy Converter ×2
    35. AggravatorAggravator ×2
    36. Wind
    37. Tidal ×2
    38. Converter
    39. RiptideFrigate
    40. Tidal
    41. Advanced Metal ExtractorT2 mexdone 10:05 · typical 9:58
    42. Death CavalryDeath Cavalry
    43. Tidal
    44. Converter
    45. Tidal ×4
    46. Con turret
    47. Naval Construction Turret
    48. Advanced Metal ExtractorT2 mex
    49. Tidal ×2
    50. Construction ShipCon ship
    51. Tidal
    52. Naval Construction Turret
    53. RiptideFrigate
    54. OppressorDestroyer
    55. Naval Construction Turret ×2
    56. Tidal
    57. Advanced Metal ExtractorT2 mex
    58. Advanced ShipyardAdvanced Shipyarddone 11:44
    59. HerringMissile corvette
    60. RiptideFrigate
    61. Advanced Construction SubAdvanced Construction Sub
    62. Naval Energy Converter ×3
    63. Death CavalryDeath Cavalry
    64. Naval Energy Converter
    65. PhantasmRadar jammer ship
    66. Death CavalryDeath Cavalry
    67. Naval Energy Converter
    68. DespotBattleshipdone 13:46
    69. Advanced Metal ExtractorT2 mex
    70. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:19
    71. GuardGuard
    72. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    73. DespotBattleship
    74. HerringMissile corvette ×2
    75. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    76. Fusion ReactorFusionnot finished by 15:00
    77. HerringMissile corvette

Counts are medians over the build's games: half of them build more, half fewer. The example game is arebee's (36 OS, 28/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 78% 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 2:27 · 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

878 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025322150
5:003702197100
6:005032534253
7:0064761094589
8:00807318301025
9:00968328541608
10:001159239882343
11:001382052163080
12:001635261753814
13:001911472054610
14:002195382905714
15:002492492686556
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

arebee

35.5 OS · 28/08/2026

Open source match ↗

4 received units · includes a constructor
778 metal received · 52510 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=876
Riptide3:52Middle 50%: 3:16–4:34 · n=864
Oppressor5:11Middle 50%: 4:16–6:08 · n=849
Advanced Metal Extractor9:58Middle 50%: 9:16–10:53 · n=744

Played most by

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