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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 · 897 distinct matches · 97 players · 83% of Cortex Geo sea games · team won 52% of 1005 · 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 897 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 1:06–1:26

    Some games also: wind for allies (49%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×3
    3. Bot LabBot Labdone 1:13 · 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 3:03–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (47%) · trasher (39%) · energy storage (34%) · wind for allies (33%)

    By 2:52 in all: 4 mex · 5 wind · 1 energy storage

    The example game in this phase · 10 steps
    1. GraverobberGraverobber
    2. Construction BotCon bot
    3. Wind ×2for Air
    4. Construction BotCon bot
    5. Wind
    6. GraverobberGraverobber
    7. Construction BotCon bot
    8. GraverobberGraverobber
    9. GruntGrunt ×2
    10. ShipyardShipyarddone 2:53 · 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 (50%) · wind (48%) · missile corvette (47%) · 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 · 15 steps
    1. Mex
    2. GruntGrunt ×2
    3. SupporterGunboat
    4. Construction ShipCon ship
    5. Mex
    6. RiptideFrigatedone 3:36 · typical 4:35
    7. OrcaSubmarinedone 4:03 · typical 4:19
    8. Mex ×3
    9. RiptideFrigate
    10. HerringMissile corvette
    11. Radar TowerRadar Tower
    12. Mex
    13. RiptideFrigate
    14. GuardGuard
    15. OppressorDestroyerdone 5:44 · typical 5:51
  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
    • Herring2 Missile corvette
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (48%) · Thistle (42%) · submarine (33%)

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

Counts are medians over the build's games: half of them build more, half fewer. The example game is MrCoolPotato's (42 OS, 09/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:47 · in 73% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 82% 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

1005 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00157100
4:002914051
5:00411013052
6:005467440232
7:006953931547
8:0086241570891
9:001051024401344
10:001264436272050
11:001523749202921
12:001815364203827
13:002150674134511
14:002505786485441
15:002879297896342
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

MrCoolPotato

42.2 OS · 09/09/2026

Open source match ↗

3 received units · includes a constructor
450 metal received · 20126 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:26 · n=999
Shipyard3:17Middle 50%: 3:03–3:33 · n=1000
Orca4:19Middle 50%: 3:53–4:59 · n=686
Riptide4:35Middle 50%: 4:08–5:20 · n=977
Oppressor5:51Middle 50%: 5:08–6:32 · n=912
Geothermal Powerplant8:00Middle 50%: 7:01–8:58 · n=605
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=861

Played most by

sirniho119games of this buildOptimusprimenutt78games of this buildSHOGVN74games of this buildPRO_Rerory46games of this buildhihimik41games of this build