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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 · 1675 distinct matches · 216 players · 84% of Cortex Beach sea games · team won 55% of 1882 · 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 1675 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 1:44–2:07

    Some games also: Guard (31%)

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

    The example game in this phase · 9 steps
    1. Mex ×3
    2. Wind ×3for Pond
    3. Bot LabBot Labdone 1:07
    4. Wind
    5. Construction BotCon botfor Pond
    6. Wind
    7. GraverobberGraverobberfor Pond
    8. Construction BotCon botfor Pond
    9. ShipyardShipyarddone 2:15 · 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 (37%) · wind (35%)

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

    The example game in this phase · 23 steps
    1. Wind
    2. Mex
    3. Construction ShipCon ship
    4. Wind
    5. Construction ShipCon ship
    6. HerringMissile corvette
    7. Wind
    8. Mex
    9. OppressorDestroyerdone 4:12 · typical 5:16
    10. Wind ×2
    11. Mex
    12. Wind ×4
    13. Mexfor Pond
    14. Mex
    15. Bot LabEat Bot Labreclaimed for its metal
    16. Wind ×2
    17. RiptideFrigatedone 4:37 · typical 3:50
    18. Naval Energy Storage
    19. Wind ×2
    20. RiptideFrigate
    21. Wind ×2
    22. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    23. RiptideFrigate
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • 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 (47%) · tidal (40%) · Radar Tower (40%) · wind (35%)

    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 · 66 steps
    1. UrchinUrchin
    2. Wind
    3. Con turretfor Pond
    4. RiptideFrigate
    5. Wind
    6. RiptideFrigate
    7. Wind
    8. OppressorDestroyer
    9. Converterfor Pond
    10. Wind
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. Wind ×2
    13. Converterfor Pond
    14. Wind
    15. OppressorDestroyer
    16. Wind
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Towerfor Pond
    18. Wind
    19. Converterfor Pond
    20. Wind ×4
    21. Converterfor Pond
    22. RiptideFrigate
    23. Wind
    24. Death CavalryDeath Cavalry
    25. Wind
    26. Death CavalryDeath Cavalry ×2
    27. Advanced Metal ExtractorT2 mexfor Ponddone 9:44 · typical 9:59
    28. Death CavalryDeath Cavalry
    29. UrchinUrchinfor Pond
    30. Naval Construction Turret
    31. RiptideFrigate
    32. Con turretfor Pond
    33. Advanced Metal ExtractorT2 mexfor Pond
    34. OppressorDestroyer
    35. Naval Construction Turret ×2
    36. Advanced Metal ExtractorT2 mexfor Pond
    37. HerringMissile corvette
    38. OppressorDestroyer
    39. HerringMissile corvette
    40. Con turretfor Pond
    41. OppressorDestroyer
    42. Advanced ShipyardAdvanced Shipyarddone 12:29
    43. Con turretfor Pond
    44. HerringMissile corvette
    45. Advanced Metal ExtractorT2 mexfor Pond
    46. Wind ×4for Pond
    47. PhantasmRadar jammer ship
    48. Death CavalryDeath Cavalry
    49. Wind ×3
    50. Advanced Construction SubAdvanced Construction Subfor Pond
    51. Death CavalryDeath Cavalry
    52. Wind
    53. T2 converter
    54. Wind
    55. Fusion ReactorFusionnot finished by 15:00
    56. Wind
    57. BuccaneerCruiserdone 13:49
    58. Death CavalryDeath Cavalry
    59. Wind
    60. Windfor Pond
    61. Naval Advanced Metal ExtractorNaval Advanced Metal Extractorfor Pondnot finished by 15:00
    62. OppressorDestroyer
    63. Windfor Pond
    64. BuccaneerCruiser
    65. Wind
    66. Windfor Pond

Counts are medians over the build's games: half of them build more, half fewer. The example game is transientfocus1's (33 OS, 16/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:45 · in 77% of games

You get

  • Finch1 Finch from Airfirst at 2:00 · in 79% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:15 · in 64% of games
  • Construction Bot1 Con bot from Geofirst at 2:26 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:33 · 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

1882 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093600
3:00155300
4:002540051
5:003718175101
6:005050483271
7:006495978586
8:0080831661994
9:00968426161506
10:001153737112277
11:001368547133046
12:001620157783831
13:001887768674591
14:002162279075631
15:002452088586491
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

transientfocus1

33.2 OS · 16/08/2026

Open source match ↗

5 received units · includes a constructor
923 metal received · 56129 energy received

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

Typical milestones

Shipyard1:56Middle 50%: 1:44–2:07 · n=1879
Riptide3:50Middle 50%: 3:12–4:33 · n=1834
Oppressor5:16Middle 50%: 4:30–6:08 · n=1814
Advanced Metal Extractor9:59Middle 50%: 9:17–10:54 · n=1585

Played most by

EpicTyrannus122games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildfanboi66games of this buildSHOGVN65games of this build