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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 · 5 steps
    1. Mex ×3
    2. Wind ×2for Geo
    3. Wind ×2
    4. Energy storage
    5. ShipyardShipyarddone 1:51 · 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 · 27 steps
    1. Tidal
    2. Construction ShipCon ship ×2
    3. Mex
    4. Tidal
    5. HerringMissile corvette
    6. Tidal
    7. RiptideFrigatedone 3:00 · typical 3:52
    8. Con turret
    9. Mex
    10. Converter
    11. Mex
    12. HerringMissile corvette
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Mex
    15. OppressorDestroyerdone 4:47 · typical 5:11
    16. Mex
    17. Wind ×2
    18. UrchinUrchin
    19. Converter
    20. Wind
    21. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    22. Wind
    23. Mex ×2
    24. Wind
    25. RiptideFrigate
    26. GuardGuard
    27. 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 (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 · 82 steps
    1. Wind
    2. Construction ShipCon ship
    3. Wind ×2
    4. Naval Construction Turret
    5. Wind
    6. Radar TowerRadar Tower
    7. HerringMissile corvette
    8. Converter
    9. ThistleThistle
    10. RiptideFrigate
    11. Wind
    12. GuardGuard
    13. Wind
    14. RiptideFrigate
    15. Naval Construction Turret
    16. Wind
    17. HerringMissile corvette
    18. RiptideFrigate
    19. Wind
    20. HerringMissile corvette
    21. Death CavalryDeath Cavalry
    22. Wind
    23. ShipyardShipyarddone 7:10
    24. GuardGuard
    25. Wind
    26. Converter
    27. RiptideFrigate
    28. Wind
    29. RiptideFrigate
    30. Wind
    31. RiptideFrigate
    32. Wind
    33. RiptideFrigate
    34. Wind
    35. Death CavalryDeath Cavalry
    36. Wind ×2
    37. Death CavalryDeath Cavalry
    38. OppressorDestroyer
    39. Wind ×3
    40. RiptideFrigate
    41. Wind
    42. RiptideFrigate
    43. Naval Energy Converter
    44. RiptideFrigate
    45. Naval Energy Converter
    46. Con turret
    47. RiptideFrigate
    48. Naval Energy Converter
    49. OrcaSubmarinedone 9:42
    50. Naval Energy Converter
    51. Wind ×2
    52. Naval Construction Turret
    53. Advanced Metal ExtractorT2 mexdone 10:32 · typical 9:58
    54. OrcaSubmarine
    55. Naval Construction Turret
    56. Radar TowerRadar Tower
    57. Naval Construction Turret
    58. Advanced Metal ExtractorT2 mex
    59. HerringMissile corvette
    60. RiptideFrigate
    61. Advanced Metal ExtractorT2 mex
    62. RiptideFrigate ×2
    63. Naval Construction Turret
    64. RiptideFrigate
    65. Death CavalryDeath Cavalry
    66. Advanced Metal ExtractorT2 mex
    67. Death CavalryDeath Cavalry
    68. RiptideFrigate
    69. Advanced ShipyardAdvanced Shipyarddone 12:58
    70. RiptideFrigate ×2
    71. Advanced Construction SubAdvanced Construction Sub
    72. PathfinderPathfinder
    73. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 13:54
    74. Wind ×3
    75. DespotBattleshipdone 14:39
    76. Fusion ReactorFusionnot finished by 15:00
    77. Wind ×4
    78. OasisOasis
    79. PhantasmRadar jammer ship
    80. Arrow StormAnti-air shipnot finished by 15:00
    81. KrakenBattle submarinenot finished by 15:00
    82. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is I_pawngame_u's (36 OS, 13/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 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

I_pawngame_u

35.7 OS · 13/09/2026

Open source match ↗

6 received units · includes a constructor
1422 metal received · 65513 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