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Beach sea / Cortex / Economy first / OBSERVED BUILD

Standard beach sea

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 · 729 distinct matches · 102 players · 84% of Cortex Beach sea games · team won 55% of 789 · 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 729 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 ~1:57, middle half 1:45–2:08

    By 1:41 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 4 steps
    1. Mex ×3
    2. Tidalfor Air
    3. Tidal ×3
    4. ShipyardShipyarddone 1:40 · typical 1:57
  2. 2

    Shipyard to 5:00

    Economy
    • Metal Extractor5Mex
    • Tidal Generator1Tidal
    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 (42%) · wind (41%) · submarine (40%) · con turret (35%) · gunboat (34%)

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

    The example game in this phase · 10 steps
    1. RiptideFrigatedone 2:03 · typical 3:51
    2. Tidal ×2
    3. HerringMissile corvette
    4. Tidal
    5. SupporterGunboat ×4
    6. Mex
    7. Construction ShipCon ship ×2
    8. Mex ×2
    9. OppressorDestroyerdone 5:28 · typical 5:09
    10. Mex ×2
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine10Wind
    Builders
    • Death Cavalry1 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    • Herring2 Missile corvette
    Other
    • Naval Radar / Sonar Tower1 Naval Radar / Sonar Tower

    Some games also: Urchin (50%) · Naval Construction Turret (47%) · Guard (47%) · Radar Tower (41%) · tidal (38%)

    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 · 71 steps
    1. HerringMissile corvette
    2. Mex
    3. RiptideFrigate
    4. Construction ShipCon ship
    5. Naval Construction Turret
    6. Mex
    7. Construction ShipCon ship
    8. Naval Construction Turret
    9. Tidal ×3
    10. Naval Construction Turret
    11. Tidal ×7
    12. Advanced ShipyardAdvanced Shipyarddone 9:09
    13. Con turret
    14. Tidal ×7
    15. Naval Energy Converter ×3
    16. Tidal
    17. Naval Construction Turret
    18. Tidal
    19. Con turret
    20. Tidal
    21. Naval Energy Converter ×3
    22. Tidal
    23. Con turret
    24. Tidal
    25. Advanced Construction SubAdvanced Construction Sub
    26. PathfinderPathfinder ×2
    27. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 10:12
    28. Mex ×2
    29. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    30. UrchinUrchin
    31. Arrow StormAnti-air shipdone 11:19
    32. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    33. Arrow StormAnti-air ship
    34. Naval Construction Turret
    35. UrchinUrchin
    36. Naval Construction Turret
    37. Tidal
    38. Arrow StormAnti-air ship
    39. Tidal ×3
    40. DespotBattleshipnot finished by 15:00
    41. OasisOasis
    42. Tidal ×2
    43. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    44. Tidal
    45. UrchinUrchin
    46. Tidal
    47. PhantasmRadar jammer ship
    48. Tidal ×2
    49. DespotBattleship
    50. Tidal ×2
    51. Converter
    52. Tidal
    53. Converter
    54. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    55. Converter
    56. Tidal
    57. Converter ×2
    58. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    59. Tidal
    60. Converter ×2
    61. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    62. Converter
    63. Tidal
    64. Converter ×2
    65. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    66. Tidal
    67. Converter
    68. Tidal ×2
    69. DespotBattleship
    70. Wind ×8
    71. BrimstoneAnti-swarm shipnot finished by 15:00

Counts are medians over the build's games: half of them build more, half fewer. The example game is Kbot_my_Ahole's (37 OS, 17/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:54 · in 79% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 81% of games
  • Lazarus1 Lazarus from Geofirst at 2:14 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:29 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:35 · in 31% 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

789 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156300
4:002522050
5:003699194100
6:005026532250
7:0064731100588
8:00808018571041
9:00968328851621
10:001160240232345
11:001382252273090
12:001635262003851
13:001911172574621
14:002186583045721
15:002487692656531
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

Kbot_my_Ahole

37.2 OS · 17/09/2026

Open source match ↗

4 received units · includes a constructor
553 metal received · 100478 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:45–2:08 · n=787
Riptide3:51Middle 50%: 3:15–4:31 · n=782
Oppressor5:09Middle 50%: 4:11–6:07 · n=764
Advanced Metal Extractor9:57Middle 50%: 9:15–10:53 · n=667

Played most by

EpicTyrannus68games of this buildDamsko64games of this buildWaboum64games of this buildPRO_HYDRA54games of this buildMrCoolPotato51games of this build