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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 · 813 distinct matches · 108 players · 84% of Cortex Beach sea games · team won 55% of 878 · 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 813 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 1:41 in all: 3 mex · 2 wind · 1 energy storage

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×8for Geo
    3. ShipyardShipyarddone 1:57 · 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 (43%) · 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 · 29 steps
    1. Construction ShipCon ship
    2. Tidal
    3. Construction ShipCon ship
    4. Mex
    5. Tidal
    6. Mex
    7. Tidal
    8. HerringMissile corvette
    9. Naval Construction Turret
    10. RiptideFrigatedone 3:06 · typical 3:52
    11. Mex
    12. SupporterGunboat
    13. Mex
    14. Con turret
    15. Death CavalryDeath Cavalry
    16. SupporterGunboat
    17. Mex
    18. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    19. OppressorDestroyerdone 4:44 · typical 5:11
    20. Mex
    21. Wind
    22. Tidal
    23. Wind
    24. Radar TowerRadar Tower
    25. Tidal
    26. Mex
    27. GuardGuard
    28. Wind
    29. Tidal
  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 (38%) · 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 · 214 steps
    1. Wind
    2. Tidal
    3. Wind
    4. GuardGuard
    5. Tidal
    6. Wind ×2
    7. BeholderBeholder
    8. Wind ×2
    9. UrchinUrchin
    10. Wind
    11. HerringMissile corvette
    12. Wind
    13. HerringMissile corvette
    14. Windfor Tech
    15. HerringMissile corvette
    16. Windfor Tech
    17. Mex
    18. Wind ×2for Tech
    19. Wind
    20. Mex
    21. Wind
    22. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    23. Wind
    24. Radar TowerRadar Tower
    25. Wind
    26. Naval Construction Turret
    27. Construction ShipCon ship
    28. Wind
    29. Con turret ×3
    30. Construction ShipCon ship
    31. Naval Construction Turret
    32. Construction ShipCon ship
    33. Con turret
    34. Construction ShipCon ship
    35. Wind
    36. Construction ShipCon ship
    37. Wind
    38. Advanced Metal ExtractorT2 mexdone 8:31 · typical 9:58
    39. Wind
    40. Naval Energy Converter
    41. Advanced Metal ExtractorT2 mex
    42. Wind
    43. Tidal
    44. Wind
    45. Tidal
    46. Wind
    47. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    48. Advanced Metal ExtractorT2 mex
    49. Wind
    50. Tidal
    51. Naval Energy Converter
    52. Advanced Metal ExtractorT2 mex
    53. Tidal
    54. Wind
    55. Naval Energy Converter
    56. Tidal
    57. Wind ×3
    58. Naval Energy Converter
    59. Wind
    60. Tidal
    61. Construction ShipCon ship
    62. Wind ×2
    63. Naval Energy Converter
    64. SlingshotSlingshot
    65. Naval Construction Turret
    66. Tidal
    67. Wind ×3
    68. Naval Energy Converter
    69. Tidal
    70. Wind
    71. Tidal
    72. Wind
    73. Naval Energy Converter
    74. Windfor Tech
    75. SlingshotSlingshot
    76. Tidal
    77. Advanced ShipyardAdvanced Shipyarddone 10:46
    78. Windfor Tech
    79. Naval Energy Converter
    80. Windfor Tech
    81. Tidal
    82. Windfor Tech
    83. SlingshotSlingshot
    84. Naval Energy Converter
    85. Wind ×2
    86. Tidal
    87. Wind
    88. Naval Energy Converter
    89. Wind
    90. Tidal
    91. Naval Energy Converter
    92. Wind
    93. Converter
    94. Naval Energy Converter
    95. Advanced Construction SubAdvanced Construction Sub
    96. Wind
    97. Tidal
    98. Converter
    99. Wind
    100. Converter
    101. Naval Energy Converter
    102. Tidal
    103. SlingshotSlingshot
    104. Wind
    105. Converter
    106. Naval Energy Converter
    107. PathfinderPathfinder
    108. Wind
    109. Naval Energy Converter
    110. Converter
    111. Tidal
    112. Wind
    113. PathfinderPathfinder
    114. Converter
    115. PathfinderPathfinder
    116. Con turret
    117. Naval Energy Converter
    118. Tidal
    119. Converter
    120. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 11:55
    121. PathfinderPathfinder
    122. Naval Energy Converter
    123. PathfinderPathfinder
    124. Converter
    125. Tidal
    126. Naval Energy Converter
    127. SlingshotSlingshot
    128. Tidal
    129. Wind
    130. Naval Energy Converter ×2
    131. Wind
    132. Tidal
    133. Naval Energy Converter
    134. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    135. Tidal
    136. Naval Energy Converter
    137. SlingshotSlingshot
    138. Naval Energy Converter
    139. Wind ×2
    140. Tidal
    141. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    142. Wind
    143. Naval Energy Converter
    144. Wind
    145. PhantasmRadar jammer ship
    146. SAMSAM
    147. Wind
    148. Tidal
    149. Wind
    150. Naval Energy Converter ×2
    151. MessengerCruise missile shipdone 13:13
    152. Wind
    153. Naval Construction Turret
    154. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    155. Wind
    156. Naval Energy Converter
    157. Wind
    158. Aircraft PlantAircraft Plantdone 13:05
    159. Naval Construction Turret
    160. Tidal
    161. Wind
    162. Naval Construction Turret
    163. Wind
    164. Naval Energy Converter
    165. Tidal
    166. HerculesLight transport
    167. Wind
    168. Naval Energy Converter
    169. Naval Construction Turret
    170. MessengerCruise missile ship
    171. HerculesLight transport
    172. Wind
    173. Naval Construction Turret
    174. Tidal
    175. Wind
    176. Naval Energy Converter
    177. Wind
    178. HerculesLight transport
    179. Naval Energy Converter
    180. Tidal
    181. Naval Energy Converter
    182. HerculesLight transport
    183. Advanced Construction SubAdvanced Construction Sub
    184. Naval Energy Converter
    185. Wind
    186. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    187. Naval Energy Converter
    188. Fusion ReactorFusionnot finished by 15:00
    189. Naval Energy Converter
    190. Tidal
    191. Naval Fusion ReactorNaval Fusion Reactornot finished by 15:00
    192. Wind
    193. Naval Energy Converter
    194. Wind ×2
    195. Tidal
    196. Naval Energy Converter
    197. Seaplane PlatformSeaplane Platformdone 14:41
    198. Wind
    199. Naval Energy Converter
    200. Tidal
    201. Wind ×4
    202. Naval Energy Converter
    203. Tidal
    204. Wind
    205. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    206. Naval Energy Converter
    207. Wind
    208. Advanced Metal ExtractorT2 mex
    209. Naval Energy Converter
    210. WatcherRadar plane
    211. Tidal
    212. Wind
    213. WatcherRadar plane
    214. Naval Energy Converter

Counts are medians over the build's games: half of them build more, half fewer. The example game is WaterBoy's (39 OS, 31/08/2026); 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 82% of games
  • Lazarus1 Lazarus from Geofirst at 2:13 · in 62% of games
  • Hephaestus1 Heavy transport from Airfirst at 2:16 · in 68% of games
  • Construction Bot1 Con bot from Geofirst at 2:27 · in 69% of games
  • Hercules1 Light transport from Airfirst at 2:34 · 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

878 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0040300
2:0093700
3:00156800
4:0025322150
5:003702197100
6:005032534253
7:0064761094589
8:00807318301025
9:00968328541608
10:001159239882343
11:001382052163080
12:001635261753814
13:001911472054610
14:002195382905714
15:002492492686556
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

WaterBoy

38.6 OS · 31/08/2026

Open source match ↗

14 received units · includes a constructor
148 metal received · 12472 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=876
Riptide3:52Middle 50%: 3:16–4:34 · n=864
Oppressor5:11Middle 50%: 4:16–6:08 · n=849
Advanced Metal Extractor9:58Middle 50%: 9:16–10:53 · n=744

Played most by

EpicTyrannus85games of this buildDamsko67games of this buildWaboum64games of this buildPRO_HYDRA60games of this buildMrCoolPotato51games of this build