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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 (93%)

#naval #eco · 1566 distinct matches · 206 players · 84% of Cortex Beach sea games · team won 55% of 1770 · 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 1566 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 · 15 steps
    1. Mex ×3
    2. Wind ×8
    3. Hovercraft PlatformHovercraft Platformdone 1:50
    4. GuardGuard
    5. Construction HovercraftCon hovercraft ×2
    6. GoonGoon ×2
    7. Wind
    8. GoonGoon
    9. Mex
    10. Wind
    11. GoonGoon ×3
    12. Tidal
    13. GoonGoon
    14. Mex
    15. ShipyardShipyarddone 3:47 · 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 · 8 steps
    1. GoonGoon ×2
    2. RiptideFrigatedone 4:12 · typical 3:50
    3. GuardGuard
    4. Mex
    5. RiptideFrigate
    6. Mex
    7. RiptideFrigate
    8. ThistleThistle
  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%) · Radar Tower (39%) · tidal (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 · 72 steps
    1. RiptideFrigate
    2. Mex
    3. Hovercraft PlatformEat Hovercraft Platformreclaimed for its metal
    4. Mex
    5. RiptideFrigate
    6. Mex
    7. OppressorDestroyerdone 6:30 · typical 5:14
    8. GuardGuard
    9. Mex
    10. HerringMissile corvette
    11. GuardGuard
    12. Mex
    13. Tidal
    14. RiptideFrigate
    15. Tidal ×2
    16. RiptideFrigate
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. HerringMissile corvette
    19. AgitatorAgitatordone 10:43
    20. Bot LabBot Labdone 8:30
    21. HerringMissile corvette
    22. GuardGuard
    23. HerringMissile corvette ×3
    24. Construction BotCon bot ×2
    25. Advanced Metal ExtractorT2 mexdone 10:42 · typical 9:58
    26. Construction BotCon bot
    27. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    28. Construction ShipCon ship
    29. Tidal
    30. Con turret
    31. Tidal
    32. OrcaSubmarinedone 11:21
    33. Tidal
    34. GraverobberGraverobber
    35. Naval Construction Turret
    36. Advanced Metal ExtractorT2 mex
    37. Advanced solar
    38. Wind
    39. GraverobberGraverobber
    40. Aircraft PlantAircraft Plantdone 11:40
    41. OrcaSubmarine
    42. Wind
    43. Mex
    44. Advanced Metal ExtractorT2 mex
    45. Advanced solar
    46. Wind ×2
    47. OrcaSubmarine
    48. Wind
    49. Bot LabEat Bot Labreclaimed for its metal
    50. ShurikenShuriken
    51. UrchinUrchin
    52. Wind
    53. OrcaSubmarine
    54. ShurikenShuriken
    55. Wind
    56. UrchinUrchin
    57. Advanced Metal ExtractorT2 mex
    58. ShurikenShuriken
    59. Wind
    60. OrcaSubmarine
    61. ShurikenShuriken
    62. Wind
    63. OrcaSubmarine
    64. ShurikenShuriken
    65. Wind
    66. OrcaSubmarine
    67. ShurikenShuriken
    68. GuardGuard
    69. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    70. ShurikenShuriken
    71. OrcaSubmarine
    72. Aircraft PlantEat Aircraft Plantreclaimed for its metal

Counts are medians over the build's games: half of them build more, half fewer. The example game is Sewer_Rat's (30 OS, 26/09/2026); 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 2:16 · 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 8:08 · 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

1770 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002540051
5:003717176102
6:005047483281
7:006489972599
8:00807216681010
9:00968326081541
10:001154037252338
11:001368547653112
12:001625058753909
13:001894668794651
14:002167779295701
15:002459888436523
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

Sewer_Rat

30.2 OS · 26/09/2026

Open source match ↗

2 received units · includes a constructor
517 metal received · 7094 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=1767
Riptide3:50Middle 50%: 3:12–4:34 · n=1724
Oppressor5:14Middle 50%: 4:28–6:06 · n=1706
Advanced Metal Extractor9:58Middle 50%: 9:17–10:55 · n=1496

Played most by

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