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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 (94%)

#naval #eco · 825 distinct matches · 110 players · 84% of Cortex Beach sea games · team won 54% of 892 · 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 825 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 1:44–2:08

    By 1:40 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. ShipyardShipyarddone 1:19 · typical 1:57
  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 (44%) · wind (40%) · submarine (39%) · gunboat (36%) · con turret (35%)

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

    The example game in this phase · 25 steps
    1. Wind
    2. Construction ShipCon ship
    3. Wind
    4. Windfor Air
    5. Tidal ×2
    6. Construction ShipCon ship
    7. Mex ×2
    8. Wind
    9. HerringMissile corvette
    10. Wind ×2
    11. Mex
    12. HerringMissile corvette
    13. OrcaSubmarinedone 3:40
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Wind ×3
    16. Con turret
    17. Wind ×2
    18. RiptideFrigatedone 4:12 · typical 3:52
    19. Mex
    20. RiptideFrigate
    21. Death CavalryDeath Cavalry
    22. Naval Energy Converter
    23. Energy storage
    24. Wind
    25. Naval Energy Converter
  3. 3

    5:00 to 10:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine10Wind
    Builders
    • Death Cavalry1 Death Cavalry
    • Construction Ship1 Con ship
    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 (48%) · Guard (47%) · Radar Tower (41%) · tidal (39%) · con turret (34%)

    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 · 62 steps
    1. Wind
    2. RiptideFrigate
    3. Wind
    4. Naval Energy Converter
    5. Wind
    6. Naval Energy Converter
    7. OppressorDestroyerdone 6:39 · typical 5:11
    8. Wind ×2
    9. Mex
    10. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    11. Wind
    12. Mex ×2
    13. Wind
    14. Radar TowerRadar Tower
    15. Wind
    16. GuardGuard
    17. RiptideFrigate
    18. Wind
    19. GuardGuard
    20. Wind
    21. RiptideFrigate
    22. Wind
    23. RiptideFrigate
    24. Wind
    25. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    26. OppressorDestroyer
    27. Wind
    28. RiptideFrigate
    29. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    30. Wind
    31. RiptideFrigate
    32. Wind
    33. Tidal
    34. Wind
    35. RiptideFrigate
    36. Tidal
    37. Wind ×3
    38. Tidal
    39. Wind ×2
    40. Tidal
    41. OppressorDestroyer
    42. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    43. HerringMissile corvette
    44. RiptideFrigate
    45. Advanced Metal ExtractorT2 mexdone 11:18 · typical 9:58
    46. RiptideFrigate ×2
    47. Death CavalryDeath Cavalry
    48. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    49. Advanced Metal ExtractorT2 mex
    50. OrcaSubmarine
    51. OppressorDestroyer
    52. Advanced Metal ExtractorT2 mex
    53. RiptideFrigate ×3
    54. HerringMissile corvette
    55. Death CavalryDeath Cavalry
    56. OppressorDestroyer
    57. RiptideFrigate ×2
    58. RattlesnakeRattlesnakenot finished by 15:00
    59. Con turret
    60. RiptideFrigate
    61. HerringMissile corvette
    62. Radar TowerRadar Tower

Counts are medians over the build's games: half of them build more, half fewer. The example game is matje2o's (36 OS, 21/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine3 Wind to Airfirst at 1:52 · in 78% of games

You get

  • Finch1 Finch from Airfirst at 1:58 · in 83% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 61% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:28 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:35 · 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

892 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156900
4:0025322150
5:003702197100
6:005028539254
7:0064751094590
8:00805918301030
9:00967428311593
10:001157339532337
11:001378351733061
12:001632161573805
13:001909171674590
14:002187982255701
15:002490392216529
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

matje2o

35.5 OS · 21/09/2026

Open source match ↗

5 received units · includes a constructor
141 metal received · 15295 energy received

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

Typical milestones

Shipyard1:57Middle 50%: 1:44–2:08 · n=890
Riptide3:52Middle 50%: 3:15–4:34 · n=877
Oppressor5:11Middle 50%: 4:17–6:08 · n=861
Advanced Metal Extractor9:58Middle 50%: 9:17–10:53 · n=755

Played most by

EpicTyrannus86games of this buildDamsko67games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build