BAR / BUILD ATLAS
← All builds
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 · 3 steps
    1. Mex ×3
    2. Wind ×8for Geo
    3. ShipyardShipyarddone 1:56 · 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 · 22 steps
    1. Tidal
    2. Construction ShipCon ship
    3. Tidal
    4. Construction ShipCon ship
    5. Tidal ×2
    6. Mex
    7. HerringMissile corvette
    8. RiptideFrigatedone 3:28 · typical 3:51
    9. Mex
    10. Naval Construction Turret
    11. SupporterGunboat
    12. Death CavalryDeath Cavalry
    13. UrchinUrchin
    14. Mex
    15. Tidal
    16. Converter ×2
    17. SupporterGunboat
    18. Mex
    19. Naval Energy Converter ×2
    20. Con turret
    21. OppressorDestroyerdone 5:20 · typical 5:11
    22. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
  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 · 95 steps
    1. Tidal ×2
    2. Mex
    3. RiptideFrigate
    4. UrchinUrchin
    5. Wind
    6. RiptideFrigate
    7. Wind ×4
    8. Death CavalryDeath Cavalry
    9. Wind
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. Mex
    12. Wind
    13. GuardGuard
    14. Wind
    15. GuardGuard
    16. Wind ×2
    17. GuardGuard
    18. Wind ×2
    19. RiptideFrigate
    20. Death CavalryDeath Cavalry
    21. Wind
    22. OppressorDestroyer
    23. Radar TowerRadar Tower
    24. Wind
    25. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    26. Death CavalryDeath Cavalry
    27. Wind ×2
    28. OppressorDestroyer
    29. Wind ×2
    30. Wind
    31. ThistleThistle
    32. Wind
    33. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    34. HerringMissile corvette
    35. Wind
    36. Wind
    37. HerringMissile corvette
    38. Wind
    39. HerringMissile corvette
    40. Wind
    41. Wind
    42. Wind
    43. Naval Energy Converter
    44. Wind
    45. HerringMissile corvette
    46. Wind
    47. Wind
    48. Naval Energy Converter
    49. Wind
    50. RiptideFrigate
    51. Wind
    52. Wind
    53. Wind
    54. Wind ×2
    55. Wind
    56. Wind
    57. RiptideFrigate
    58. Wind
    59. Wind
    60. Wind ×2
    61. Wind
    62. Wind ×2
    63. Wind
    64. OppressorDestroyer
    65. Wind ×3
    66. OppressorDestroyer
    67. Wind ×2
    68. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    69. Advanced Metal ExtractorT2 mexdone 12:54 · typical 9:58
    70. RiptideFrigate
    71. Wind
    72. HerringMissile corvette
    73. Wind
    74. RiptideFrigate
    75. OrcaSubmarinedone 12:44
    76. Wind
    77. Death CavalryDeath Cavalry
    78. Wind
    79. Advanced Metal ExtractorT2 mex
    80. Wind
    81. OppressorDestroyer
    82. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    83. Wind
    84. OppressorDestroyer
    85. Wind
    86. RiptideFrigate
    87. Wind
    88. HerringMissile corvette
    89. RiptideFrigate
    90. Advanced Metal ExtractorT2 mex
    91. Wind
    92. OrcaSubmarine
    93. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    94. Naval Construction Turret ×2
    95. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is WaterBoy's (36 OS, 03/10/2026); 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

WaterBoy

35.5 OS · 03/10/2026

Open source match ↗

9 received units · includes a constructor
1598 metal received · 16233 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
Standard beach sea · Cortex Beach sea build order · BAR Build Atlas