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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

The role's default economy-first play: bot lab then shipyard in the cove, quick frigate/submarine/destroyer navy to contest sea and hold the coast, transitioning into whatever the sea fight needs.

Usually shipyard in the cove (98%)

#naval #eco · 963 distinct matches · 100 players · 83% of Cortex Geo sea games · team won 52% of 1080 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 3:18

  1. Open 3 mex, wind and solar, then Bot Lab.
  2. Get a BP and costal torpedo launcher up before the Shipyard.
  3. Put up Shipyard once you can defend it.
  4. Push out "submarine" and "frigate" to contest the sea.
  5. Add geothermal to fund the fleet transition into "destroyer", "missile corvette".

Phase by phase

TYPICAL OF ITS 963 GAMES
  1. 1
  2. 2
  3. 3
  4. 4
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 Bot Lab

    Economy
    • Metal Extractor3Mex
    • Wind Turbine3Wind
    Order
    1. Bot LabBot Lab after 3 mex, 3 winddone ~1:12, middle half 1:06–1:25

    Some games also: wind for allies (49%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 4 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind ×2
    4. Bot LabBot Labdone 1:12 · typical 1:12
  2. 2

    Bot Lab to Shipyard

    Economy
    • Metal Extractor1Mex
    • Wind Turbine2Wind
    Order
    1. ShipyardShipyard after 4 mex, 5 wind, 1 energy storagedone ~3:17, middle half 3:02–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (46%) · trasher (39%) · energy storage (34%) · wind for allies (32%)

    By 2:51 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 8 steps
    1. Solar
    2. GraverobberGraverobber
    3. Wind ×3
    4. Construction BotCon bot ×3
    5. Mex
    6. GraverobberGraverobber
    7. TrasherTrasher
    8. ShipyardShipyarddone 3:37 · typical 3:17
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Builders
    • Construction Ship1 Con ship
    Army
    • Riptide2 Frigate
    • Orca1 Submarine
    Other
    • Radar Tower1 Radar Tower

    Some games also: Guard (49%) · wind (49%) · missile corvette (48%) · destroyer (46%) · gunboat (41%)

    By 5:00 in all: 8 mex · 6 wind · 1 energy storage · 1 con turret

    The example game in this phase · 23 steps
    1. GruntGrunt
    2. Mex
    3. Con turret
    4. Mex
    5. Radar TowerRadar Tower
    6. Energy storage
    7. Wind
    8. OrcaSubmarinedone 4:04 · typical 4:19
    9. Wind
    10. Converter
    11. Wind
    12. Construction ShipCon ship
    13. HerringMissile corvette
    14. Converter
    15. ThistleThistle
    16. Wind
    17. RiptideFrigatedone 4:35 · typical 4:36
    18. ThistleThistle
    19. Mex
    20. RiptideFrigate
    21. Wind
    22. Converter
    23. Mex
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine8Wind
    • Energy Converter1Converter
    Builders
    • Construction Turret1 Con turret
    • Death Cavalry2 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Guard2 Guard
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (48%) · Thistle (41%) · submarine (34%)

    By 10:00 in all: 10 mex · 15 wind · 1 geo · 4 converter · 1 energy storage · 2 con turret

    The example game in this phase · 141 steps
    1. Wind
    2. RiptideFrigate
    3. Wind
    4. OppressorDestroyerdone 6:15 · typical 5:52
    5. Wind
    6. Mex
    7. Wind
    8. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    9. Death CavalryDeath Cavalry
    10. Geothermal PowerplantGeodone 8:55 · typical 7:59
    11. Wind
    12. HerringMissile corvette
    13. RiptideFrigate
    14. Mex
    15. Wind
    16. Mex
    17. RiptideFrigate
    18. Wind
    19. OppressorDestroyer
    20. ThistleThistle
    21. GuardGuard
    22. Wind
    23. Radar TowerRadar Tower
    24. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    25. GuardGuard
    26. Advanced Metal ExtractorT2 mexdone 8:58 · typical 9:22
    27. Wind
    28. GuardGuard ×2
    29. Wind
    30. Death CavalryDeath Cavalry
    31. Wind
    32. HerringMissile corvette
    33. RiptideFrigate
    34. Wind
    35. Converter
    36. RiptideFrigate
    37. Advanced Metal ExtractorT2 mex
    38. Mex
    39. Wind
    40. RiptideFrigate
    41. Con turret
    42. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    43. OppressorDestroyer
    44. Converter
    45. Wind ×2
    46. HerringMissile corvette
    47. OppressorDestroyer
    48. Converter
    49. Wind
    50. Advanced Metal ExtractorT2 mex
    51. Naval Metal Storage
    52. Construction ShipCon ship
    53. Wind
    54. Converter
    55. HerringMissile corvette ×2
    56. Mex
    57. Wind
    58. HerringMissile corvette ×2
    59. Converter
    60. HerringMissile corvette
    61. Wind
    62. HerringMissile corvette
    63. Mex
    64. HerringMissile corvette ×3
    65. Wind
    66. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    67. HerringMissile corvette
    68. Converter
    69. HerringMissile corvette
    70. Wind
    71. Mex
    72. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    73. Converter
    74. Construction ShipCon ship
    75. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    76. Wind
    77. Construction ShipCon ship
    78. Naval Construction Turret
    79. Con turret
    80. Wind
    81. Mex
    82. Naval Construction Turret ×2
    83. Converter
    84. Con turret
    85. Naval Construction Turret
    86. Con turret
    87. Naval Construction Turret
    88. Tidal
    89. Naval Construction Turret
    90. Tidal
    91. Advanced Metal ExtractorT2 mex
    92. Wind
    93. Tidal
    94. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    95. Wind ×2
    96. Tidal
    97. Converter
    98. Wind
    99. Amphibious ComplexAmphibious Complexdone 13:25
    100. Tidal
    101. Wind
    102. Tidal
    103. Wind ×2
    104. Tidal
    105. Wind
    106. Tidal
    107. Wind
    108. Tidal
    109. Wind ×3
    110. Tidal
    111. Wind ×2
    112. Tidal
    113. Converter
    114. Wind ×2
    115. Tidal ×3
    116. Wind
    117. Tidal
    118. Wind
    119. Mex
    120. Tidal
    121. Wind
    122. SalamanderSalamander
    123. Wind
    124. Tidal
    125. Wind
    126. Naval Construction Turret
    127. Converter
    128. RiptideFrigate
    129. Naval Construction Turret
    130. RiptideFrigate
    131. Naval Construction Turret
    132. Wind
    133. RiptideFrigate
    134. Wind
    135. Advanced Metal ExtractorT2 mex
    136. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    137. Naval Construction Turret
    138. RiptideFrigate
    139. SalamanderSalamander
    140. Converter
    141. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is Alphacure's (38 OS, 28/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 72% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 83% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 75% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 7:44 · 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

1080 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002903051
5:00410813152
6:005464441242
7:006946931551
8:0086181570905
9:001049724631363
10:001261536342072
11:001522148872938
12:001812964053801
13:002147974014458
14:002507986465388
15:002882297766321
WHAT THE NUMBERS SAY

Standard Cortex geo sea sits at an even 50% win rate, trading a slower start for a big resource lead by 15:00.

  • + Metal produced hits 28451 by 15:00, well above both front roles
  • + Own metal lost stays far below enemy metal destroyed at every checkpoint
  • − Only 50% team win rate, the lowest of these six builds
  • − T2 factory only completes in 40% of games by 12:53
THE EXAMPLE YOU ARE READING

Alphacure

38.2 OS · 28/09/2026

Open source match ↗

3 received units · includes a constructor
288 metal received · 13865 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:25 · n=1069
Shipyard3:17Middle 50%: 3:02–3:33 · n=1074
Orca4:19Middle 50%: 3:54–5:00 · n=747
Riptide4:36Middle 50%: 4:08–5:21 · n=1048
Oppressor5:52Middle 50%: 5:09–6:34 · n=977
Geothermal Powerplant7:59Middle 50%: 7:01–8:59 · n=648
Advanced Metal Extractor9:22Middle 50%: 8:46–10:10 · n=926

Played most by

sirniho121games of this buildSHOGVN86games of this buildOptimusprimenutt84games of this buildPRO_Rerory47games of this buildhihimik41games of this build
Standard geo sea · Cortex Geo sea build order · BAR Build Atlas