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 (93%)

#naval #eco · 1552 distinct matches · 206 players · 84% of Cortex Beach sea games · team won 55% of 1756 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 1:56

  1. Open 3 mex, then send com to sea to build Shipyard by 1:56.
  2. Add tidal generators, wind and more mex to fund the shipyard.
  3. Pump Riptide first, then Oppressor to contest enemy sea entry.
  4. Get T2 constructor out to start scaling the naval economy.
  5. Transition into Advanced Metal Extractor as the economy phase begins.

Phase by phase

TYPICAL OF ITS 1552 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 ~1:56, middle half 1:43–2:07

    By 1:39 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 6 steps
    1. Mex ×3
    2. Wind ×3for Air
    3. Wind
    4. Energy storage
    5. Tidal ×2
    6. ShipyardShipyarddone 2:05 · typical 1:56
  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 (46%) · mex (38%) · wind (37%) · submarine (36%) · wind (36%)

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

    The example game in this phase · 28 steps
    1. Construction ShipCon ship ×2
    2. OrcaSubmarinedone 3:02
    3. Con turret
    4. Tidal
    5. Mex ×2
    6. Tidal
    7. SupporterGunboat
    8. Mex
    9. SupporterGunboat
    10. Mex
    11. SupporterGunboat
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. Mex
    14. SupporterGunboat
    15. Wind
    16. SupporterGunboat
    17. Wind
    18. UrchinUrchin
    19. Wind
    20. RiptideFrigatedone 4:44 · typical 3:50
    21. Wind
    22. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    23. Wind
    24. GuardGuard
    25. HerringMissile corvette
    26. Mex
    27. Wind
    28. UrchinUrchin
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine8Wind
    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 (49%) · Guard (46%) · tidal (40%) · Radar Tower (39%) · wind (34%)

    By 10:00 in all: 9 mex · 10 wind · 4 wind · 4 tidal · 1 energy storage · 1 Naval Construction Turret

    The example game in this phase · 92 steps
    1. Wind
    2. RiptideFrigate
    3. Wind
    4. Mex
    5. Wind ×3
    6. OrcaSubmarine
    7. Wind ×4
    8. Converter
    9. OppressorDestroyerdone 7:01 · typical 5:15
    10. GuardGuard
    11. Wind ×4
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. Wind
    14. GuardGuard
    15. Wind
    16. RiptideFrigate
    17. Wind
    18. GuardGuard
    19. BeholderBeholder
    20. Wind
    21. GuardGuard
    22. OppressorDestroyer
    23. Wind ×4
    24. GuardGuard
    25. Wind ×2
    26. Death CavalryDeath Cavalry
    27. Wind ×3
    28. Advanced Metal ExtractorT2 mexdone 9:39 · typical 9:59
    29. GuardGuard
    30. HerringMissile corvette
    31. Wind
    32. RiptideFrigate
    33. Wind
    34. GuardGuard
    35. OppressorDestroyer
    36. GuardGuard
    37. BeholderBeholder
    38. Wind
    39. Construction ShipCon ship
    40. Dragon's TeethDragon's Teeth
    41. GuardGuard
    42. Advanced Metal ExtractorT2 mex
    43. OppressorDestroyer
    44. GuardGuard
    45. Wind
    46. Death CavalryDeath Cavalry
    47. Wind ×3
    48. HerringMissile corvette
    49. GuardGuard
    50. Wind
    51. OppressorDestroyer
    52. Advanced Metal ExtractorT2 mex
    53. Wind
    54. RiptideFrigate
    55. Wind
    56. GuardGuard
    57. OppressorDestroyer
    58. Wind ×4
    59. RiptideFrigate
    60. Wind
    61. Construction ShipCon ship
    62. Advanced Metal ExtractorT2 mex
    63. Wind ×2
    64. OppressorDestroyer
    65. Wind ×2
    66. Naval Construction Turret
    67. Wind
    68. Con turret
    69. RiptideFrigate
    70. Naval Construction Turret
    71. Energy storage
    72. Naval Construction Turret
    73. Energy storage
    74. Advanced ShipyardAdvanced Shipyarddone 13:55
    75. Energy storage
    76. Converter ×6
    77. Advanced Construction SubAdvanced Construction Sub
    78. Mex
    79. Bot LabBot Labdone 14:34
    80. Construction BotCon bot
    81. PathfinderPathfinder
    82. Death CavalryDeath Cavalry
    83. Construction BotCon bot
    84. PathfinderPathfinder
    85. Mex
    86. Construction BotCon bot
    87. Death CavalryDeath Cavalry
    88. PathfinderPathfinder
    89. Construction BotCon bot
    90. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    91. Construction BotCon bot
    92. PathfinderPathfinder

Counts are medians over the build's games: half of them build more, half fewer. The example game is Flerpz's (33 OS, 12/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:46 · in 77% of games

You get

  • Finch1 Finch from Airfirst at 2:00 · in 80% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 63% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:15 · in 65% of games
  • Construction Bot1 Con bot from Geofirst at 2:26 · in 70% 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 89% 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

1756 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002539051
5:003717176103
6:005044484281
7:006488974599
8:00806916701013
9:00968326041541
10:001153737182343
11:001368547653112
12:001625058753910
13:001895468794652
14:002167279375711
15:002457688436529
WHAT THE NUMBERS SAY

Standard Beach sea play has the lowest team win rate of these builds and destroys far less enemy metal early than it loses eco time.

  • + Metal produced climbs to 24945 by 15:00, the highest of all six roles.
  • + Riptide and Oppressor together make 63% of army, a focused naval composition.
  • − Enemy metal destroyed is only 200 by 5:00, barely contesting early sea.
  • − T2 factory only reached in 35% of games, behind other roles' T2 timing.
THE EXAMPLE YOU ARE READING

Flerpz

33.2 OS · 12/10/2026

Open source match ↗

7 received units · includes a constructor
93 metal received · 20445 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:43–2:07 · n=1753
Riptide3:50Middle 50%: 3:12–4:34 · n=1710
Oppressor5:15Middle 50%: 4:28–6:07 · n=1692
Advanced Metal Extractor9:59Middle 50%: 9:17–10:55 · n=1485

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildWaboum64games of this buildPRO_HYDRA63games of this build