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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

The usual Cove-side sea opening: bot lab for an early defensive bot, shipyard in the cove, then frigates, destroyers and submarines to contest the sea and defend the base.

Usually shipyard in the cove (98%)

#naval #defence · 1098 distinct matches · 104 players · 83% of Cortex Geo sea games · team won 52% of 1227 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 3:16

  1. Grab 3 mex and open wind while laying down bot lab.
  2. Get bot lab up then push straight into shipyard.
  3. Finish shipyard, start pumping subs and frigates to contest sea.
  4. Add submarine, frigate and destroyer to hold sea lanes.
  5. Bring geo online and transition into mixed navy.

Phase by phase

TYPICAL OF ITS 1098 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 1:07–1:26

    Some games also: wind for allies (48%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×4
    3. Bot LabBot Labdone 1:09 · 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 (45%) · trasher (40%) · energy storage (33%) · wind for allies (31%)

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

    The example game in this phase · 6 steps
    1. Construction BotCon bot
    2. GraverobberGraverobber
    3. GraverobberGraverobberfor Beach sea
    4. GuardGuard
    5. Construction BotCon bot
    6. ShipyardShipyarddone 2:35 · typical 3:17
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Order
    1. Bot LabEat Bot Lab
    Builders
    • Construction Ship1 Con ship
    Army
    • Riptide2 Frigate
    • Orca1 Submarine
    Other
    • Radar Tower1 Radar Tower

    Some games also: missile corvette (49%) · Guard (49%) · wind (48%) · destroyer (45%) · gunboat (39%)

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

    The example game in this phase · 23 steps
    1. Construction BotCon bot
    2. Mex
    3. Construction ShipCon ship ×2
    4. Wind
    5. Mex
    6. HerringMissile corvette
    7. OrcaSubmarinedone 4:07 · typical 4:17
    8. Mex
    9. Wind
    10. Mex
    11. UrchinUrchin
    12. Wind
    13. Bot LabEat Bot Labreclaimed for its metal
    14. ThistleThistle
    15. Wind ×2
    16. HerringMissile corvette
    17. Wind
    18. Converter
    19. HerringMissile corvette ×2
    20. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    21. OrcaSubmarine
    22. Mex
    23. Wind ×2
  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 (47%) · Thistle (40%) · 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 · 93 steps
    1. Wind
    2. OrcaSubmarine
    3. GuardGuard
    4. Wind
    5. Radar TowerRadar Tower
    6. Converter
    7. HerringMissile corvette
    8. Wind
    9. OrcaSubmarine
    10. Wind ×2
    11. Mex
    12. RiptideFrigatedone 6:45 · typical 4:37
    13. Wind
    14. Converter
    15. GuardGuard
    16. RiptideFrigate
    17. HerringMissile corvette
    18. Wind
    19. Energy storage
    20. GuardGuard ×2
    21. Con turret
    22. GuardGuard
    23. Con turret
    24. GuardGuard
    25. Radar TowerRadar Tower
    26. Converter ×3
    27. Dragon's TeethDragon's Teeth
    28. Converter
    29. Dragon's TeethDragon's Teeth ×5
    30. Con turret
    31. Dragon's TeethDragon's Teeth
    32. Energy storage
    33. Dragon's TeethDragon's Teeth ×3
    34. Advanced Metal ExtractorT2 mexdone 9:21 · typical 9:22
    35. Dragon's TeethDragon's Teeth ×7
    36. Twin GuardTwin Guard
    37. Advanced Metal ExtractorT2 mex
    38. Dragon's TeethDragon's Teeth ×3
    39. Twin GuardTwin Guard
    40. Dragon's TeethDragon's Teeth ×6
    41. Advanced solar
    42. Advanced Metal ExtractorT2 mex
    43. Dragon's TeethDragon's Teeth ×3
    44. GuardGuard ×2
    45. Bot LabBot Labdone 10:38
    46. GuardGuard
    47. Advanced Metal ExtractorT2 mex
    48. Dragon's TeethDragon's Teeth ×3
    49. Pit BullPit Bull
    50. Dragon's TeethDragon's Teeth
    51. Aircraft PlantAircraft Plantdone 12:05
    52. Dragon's TeethDragon's Teeth ×10
    53. HerculesLight transport
    54. Dragon's TeethDragon's Teeth ×2
    55. Pit BullPit Bull
    56. HerculesLight transport
    57. Twin GuardTwin Guard
    58. Dragon's TeethDragon's Teeth ×2
    59. Construction AircraftCon aircraft
    60. Dragon's TeethDragon's Teeth ×2
    61. Twin GuardTwin Guard
    62. Dragon's TeethDragon's Teeth ×6
    63. Twin GuardTwin Guard
    64. Dragon's TeethDragon's Teeth
    65. Pit BullPit Bull
    66. Dragon's TeethDragon's Teeth
    67. Advanced Radar TowerAdvanced Radar Tower
    68. Dragon's TeethDragon's Teeth
    69. Metal storage
    70. Con turret
    71. GuardGuard
    72. Twin GuardTwin Guard
    73. GuardGuard
    74. Con turret
    75. GuardGuard
    76. Con turret
    77. Fusion ReactorFusiondone 14:35
    78. Con turret
    79. Dragon's TeethDragon's Teeth ×3
    80. GuardGuard
    81. Aircraft PlantEat Aircraft Plantreclaimed for its metal
    82. Dragon's TeethDragon's Teeth
    83. Con turret
    84. Dragon's TeethDragon's Teeth ×3
    85. Con turret
    86. GuardGuard
    87. Dragon's TeethDragon's Teeth ×2
    88. Bot LabEat Bot Labreclaimed for its metal
    89. Con turret
    90. Dragon's TeethDragon's Teeth ×2
    91. Con turret
    92. Dragon's TeethDragon's Teeth ×13
    93. T2 converter

Counts are medians over the build's games: half of them build more, half fewer. The example game is _X_'s (41 OS, 08/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 70% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 83% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 74% 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

1227 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156600
4:002894051
5:00410315052
6:005454461231
7:006936931545
8:0086071578891
9:001047124951344
10:001263036252031
11:001519548242838
12:001810762243720
13:002139973574441
14:002501686445353
15:002886197626354
WHAT THE NUMBERS SAY

Matches the role's own norm almost exactly, sitting at the typical 52% team win rate for Geo sea.

  • + Reliable timing: bot lab by 1:12 and shipyard by 3:16 in the middle half of games.
  • − Own metal lost climbs to 6854 by 15:00, showing sea fights stay costly.
THE EXAMPLE YOU ARE READING

_X_

41.1 OS · 08/10/2026

Open source match ↗

1 received units · includes a constructor
37 metal received · 71917 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:07–1:26 · n=1207
Shipyard3:17Middle 50%: 3:02–3:33 · n=1219
Orca4:17Middle 50%: 3:51–4:59 · n=845
Riptide4:37Middle 50%: 4:08–5:21 · n=1192
Oppressor5:52Middle 50%: 5:08–6:36 · n=1114
Geothermal Powerplant8:00Middle 50%: 7:01–9:03 · n=729
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=1060

Played most by

sirniho125games of this buildSHOGVN100games of this buildOptimusprimenutt86games of this buildPRO_Rerory52games of this buildTheSituation43games of this build
Standard geo sea · Cortex Geo sea build order · BAR Build Atlas