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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 · 1603 distinct matches · 207 players · 84% of Cortex Beach sea games · team won 55% of 1807 · 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 1603 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

    Some games also: Guard (30%)

    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 ×3
    3. GuardGuard
    4. Mex
    5. GuardGuard
    6. 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 (36%) · wind (36%)

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

    The example game in this phase · 29 steps
    1. Con turret
    2. Construction ShipCon ship ×3
    3. Tidal
    4. Mex ×2
    5. Construction ShipCon ship
    6. Mex
    7. Tidal
    8. HerringMissile corvette
    9. Tidal
    10. HerringMissile corvette
    11. Tidal
    12. Wind
    13. Tidal
    14. Wind
    15. HerringMissile corvette
    16. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    17. Tidal
    18. UrchinUrchin
    19. Wind
    20. HerringMissile corvette
    21. Converter ×2
    22. Wind
    23. HerringMissile corvette
    24. Tidal
    25. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    26. Mex
    27. Wind
    28. Tidal
    29. HerringMissile corvette
  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 (47%) · Radar Tower (40%) · 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 · 63 steps
    1. Converter
    2. Wind
    3. Converter
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. HerringMissile corvette
    6. Converter
    7. Wind
    8. HerringMissile corvette
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. Energy storage
    11. Wind
    12. HerringMissile corvette
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Wind
    15. HerringMissile corvette
    16. Naval Energy Converter
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. HerringMissile corvette
    19. Naval Energy Converter
    20. Wind
    21. Tidal
    22. HerringMissile corvette
    23. Wind
    24. HerringMissile corvette ×2
    25. Wind
    26. HerringMissile corvette ×2
    27. Wind
    28. HerringMissile corvette
    29. Wind
    30. HerringMissile corvette
    31. Wind
    32. Converter
    33. HerringMissile corvette
    34. Wind
    35. HerringMissile corvette
    36. Converter
    37. Wind
    38. Death CavalryDeath Cavalry
    39. Converter
    40. Wind
    41. Converter
    42. Death CavalryDeath Cavalry
    43. Wind
    44. OrcaSubmarinedone 9:21
    45. Wind ×2
    46. OrcaSubmarine
    47. Advanced Metal ExtractorT2 mexdone 10:54 · typical 9:59
    48. Wind ×2
    49. OrcaSubmarine ×3
    50. Advanced Metal ExtractorT2 mex
    51. OrcaSubmarine
    52. Advanced Metal ExtractorT2 mex
    53. OrcaSubmarine
    54. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    55. OrcaSubmarine ×2
    56. Advanced Metal ExtractorT2 mex
    57. OrcaSubmarine
    58. Naval Construction Turret
    59. Metal storage
    60. Naval Construction Turret ×3
    61. Advanced ShipyardAdvanced Shipyarddone 14:49
    62. Tidal ×4
    63. PhantasmRadar jammer ship

Counts are medians over the build's games: half of them build more, half fewer. The example game is hannibalrising's (33 OS, 19/08/2026); 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 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

1807 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00155300
4:002539051
5:003717175101
6:005049484279
7:006492975591
8:00807316651000
9:00967926141532
10:001153637242320
11:001368447423102
12:001625058323861
13:001895168794645
14:002168079335680
15:002458688866524
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

hannibalrising

32.8 OS · 19/08/2026

Open source match ↗

3 received units · includes a constructor
1694 metal received · 40338 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=1804
Riptide3:50Middle 50%: 3:12–4:34 · n=1761
Oppressor5:15Middle 50%: 4:29–6:07 · n=1740
Advanced Metal Extractor9:59Middle 50%: 9:17–10:54 · n=1528

Played most by

EpicTyrannus120games of this buildDamsko69games of this buildKbot_my_Ahole67games of this buildfanboi64games of this buildSHOGVN64games of this build