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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 · 871 distinct matches · 111 players · 83% of Cortex Beach sea games · team won 54% of 943 · 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 871 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 Turbine2Windfor allies
    • Wind Turbine2Wind
    • Energy Storage1Energy storage
    Order
    1. ShipyardShipyard after 3 mex, 2 wind, 1 energy storagedone ~1:57, middle half 1:43–2:07

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

    The example game in this phase · 5 steps
    1. Mex ×3
    2. Wind ×3for Air
    3. Wind
    4. Energy storage
    5. ShipyardShipyarddone 1:50 · 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 (45%) · submarine (39%) · wind (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 · 15 steps
    1. Construction ShipCon ship ×2
    2. Naval Construction Turret
    3. HerringMissile corvette
    4. Mex ×2
    5. OppressorDestroyerdone 3:42 · typical 5:11
    6. Mex ×2
    7. UrchinUrchin
    8. RiptideFrigatedone 4:20 · typical 3:51
    9. Mex
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. RiptideFrigate
    12. Wind
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Wind
    15. RiptideFrigate
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine9Wind
    Builders
    • Construction Ship1 Con ship
    • Death Cavalry1 Death Cavalry
    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 (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 · 80 steps
    1. Death CavalryDeath Cavalry
    2. Wind ×2
    3. HerringMissile corvette
    4. RiptideFrigate
    5. Wind
    6. RiptideFrigate
    7. Wind
    8. Radar TowerRadar Tower
    9. OppressorDestroyer
    10. Wind
    11. Mex
    12. Construction ShipCon ship
    13. Wind
    14. HerringMissile corvette
    15. Con turret
    16. Mex
    17. HerringMissile corvette
    18. BeholderBeholder
    19. Wind
    20. HerringMissile corvette
    21. Wind
    22. HerringMissile corvette
    23. Wind
    24. HerringMissile corvette
    25. Wind ×2
    26. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    27. GuardGuard
    28. Wind ×6
    29. Construction ShipCon ship
    30. Wind
    31. Con turret ×2
    32. Metal storage
    33. Con turret
    34. Advanced Metal ExtractorT2 mexdone 9:25 · typical 9:58
    35. Con turret
    36. Wind
    37. Advanced Metal ExtractorT2 mex
    38. Wind ×7
    39. Advanced Metal ExtractorT2 mex
    40. Wind
    41. Con turret
    42. Wind ×6
    43. Advanced Metal ExtractorT2 mex
    44. Death CavalryDeath Cavalry
    45. Construction ShipCon ship
    46. Wind ×2
    47. Energy storage ×2
    48. Wind
    49. Construction ShipCon ship
    50. Advanced ShipyardAdvanced Shipyarddone 11:38
    51. Wind ×2
    52. Construction ShipCon ship
    53. Wind ×11
    54. Advanced Construction SubAdvanced Construction Sub
    55. PathfinderPathfinder ×2
    56. PhantasmRadar jammer ship
    57. Naval Construction Turret
    58. Metal storage
    59. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:11
    60. Naval Construction Turret
    61. Metal storage ×2
    62. Naval Construction Turret
    63. Radar TowerRadar Tower
    64. Naval Construction Turret
    65. Amphibious ComplexAmphibious Complexdone 13:16
    66. Naval Construction Turret ×5
    67. SalamanderSalamander
    68. Naval Construction Turret
    69. MuskratMuskrat
    70. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    71. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    72. Bot LabBot Labdone 13:48
    73. SalamanderSalamander ×2
    74. Naval Construction Turret
    75. Construction BotCon bot
    76. UrchinUrchin ×2
    77. Naval Construction Turret
    78. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    79. UrchinUrchin ×6
    80. Con turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is WashedGamuer's (46 OS, 02/10/2026); 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 1:59 · 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 2:35 · in 32% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 8:10 · 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

943 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00157000
4:002537051
5:003709197100
6:005035533261
7:0064751080591
8:00803818141031
9:00966427901581
10:001155639232340
11:001375250003070
12:001628061193825
13:001906771064611
14:002181181625667
15:002487692576531
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

WashedGamuer

45.9 OS · 02/10/2026

Open source match ↗

9 received units · includes a constructor
1273 metal received · 65600 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:43–2:07 · n=941
Riptide3:51Middle 50%: 3:15–4:34 · n=925
Oppressor5:11Middle 50%: 4:18–6:08 · n=907
Advanced Metal Extractor9:58Middle 50%: 9:17–10:55 · n=797

Played most by

EpicTyrannus94games of this buildDamsko68games of this buildWaboum64games of this buildPRO_HYDRA61games of this buildKbot_my_Ahole52games of this build