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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 · 755 distinct matches · 104 players · 84% of Cortex Beach sea games · team won 55% of 817 · 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 755 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 · 5 steps
    1. Mex ×3
    2. Wind ×3for Air
    3. Wind ×2
    4. Energy storage
    5. ShipyardShipyarddone 2:00 · 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 (43%) · wind (40%) · submarine (39%) · con turret (35%) · gunboat (35%)

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

    The example game in this phase · 19 steps
    1. Tidal
    2. SupporterGunboat
    3. HerringMissile corvette
    4. Construction ShipCon ship ×2
    5. OrcaSubmarinedone 3:08
    6. Mex ×2
    7. SupporterGunboat
    8. Mex
    9. SupporterGunboat ×2
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. Mex
    12. Mex
    13. HerringMissile corvette
    14. OppressorDestroyerdone 4:35 · typical 5:08
    15. Con turret
    16. RiptideFrigatedone 4:59 · typical 3:52
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. Tidal
    19. Wind
  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 (48%) · 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 · 54 steps
    1. RiptideFrigate
    2. Wind
    3. Tidal
    4. RiptideFrigate
    5. Wind
    6. Converter
    7. Wind
    8. Death CavalryDeath Cavalry
    9. Wind
    10. HerringMissile corvette
    11. Wind ×2
    12. OppressorDestroyer
    13. Wind
    14. Converter ×2
    15. HerringMissile corvette
    16. Converter
    17. RiptideFrigate
    18. Wind
    19. RiptideFrigate
    20. Wind
    21. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    22. RiptideFrigate
    23. Wind
    24. HerringMissile corvette
    25. Wind
    26. OppressorDestroyer
    27. Dragon's MawDragon's Maw
    28. Wind ×2
    29. RiptideFrigate
    30. Wind
    31. RiptideFrigate
    32. Wind
    33. RiptideFrigate ×2
    34. Bot LabBot Labdone 11:47
    35. Advanced Metal ExtractorT2 mexdone 12:24 · typical 9:57
    36. Construction BotCon bot
    37. Radar TowerRadar Tower
    38. Con turret
    39. Construction BotCon bot
    40. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    41. Construction BotCon botfor Geo
    42. Advanced Metal ExtractorT2 mex
    43. ChainsawChainsaw
    44. Construction BotCon bot ×3
    45. Wind ×2
    46. Advanced Metal ExtractorT2 mex
    47. Wind ×5
    48. RattlesnakeRattlesnakenot finished by 15:00
    49. Wind ×4
    50. RattlesnakeRattlesnake
    51. SentrySentry
    52. Wind
    53. SentrySentry
    54. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is Tregan'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 1:53 · in 78% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:14 · in 61% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 69% 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

817 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156300
4:002521050
5:003696195100
6:005025535251
7:0064691104588
8:00806518551031
9:00967428621610
10:001158640232345
11:001379252273101
12:001635262003831
13:001911472574611
14:002195582755691
15:002492992706500
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

Tregan

37.4 OS · 17/09/2026

Open source match ↗

4 received units · includes a constructor
783 metal received · 55387 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=815
Riptide3:52Middle 50%: 3:16–4:33 · n=809
Oppressor5:08Middle 50%: 4:11–6:07 · n=791
Advanced Metal Extractor9:57Middle 50%: 9:16–10:53 · n=695

Played most by

EpicTyrannus74games of this buildDamsko66games of this buildWaboum64games of this buildPRO_HYDRA57games of this buildMrCoolPotato51games of this build