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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 · 1097 distinct matches · 104 players · 83% of Cortex Geo sea games · team won 52% of 1226 · 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 1097 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 ×5
    3. Bot LabBot Labdone 1:16 · 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 · 5 steps
    1. Construction BotCon bot ×3
    2. GraverobberGraverobber
    3. Mex
    4. GraverobberGraverobber
    5. ShipyardShipyarddone 2:38 · 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. TrasherTrasher ×2
    2. GruntGrunt
    3. Construction ShipCon ship
    4. OrcaSubmarinedone 3:14 · typical 4:17
    5. Wind
    6. Mex
    7. Wind
    8. Construction ShipCon ship
    9. Energy storage
    10. Construction ShipCon ship
    11. Bot LabEat Bot Labreclaimed for its metal
    12. Mex ×2
    13. Wind
    14. Radar TowerRadar Tower
    15. Mex
    16. Wind
    17. GuardGuard
    18. Wind ×3
    19. Mexfor Suicide front
    20. RiptideFrigatedone 5:08 · typical 4:37
    21. GuardGuard
    22. Wind
    23. Mexfor Suicide front
  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 · 84 steps
    1. Mex
    2. Wind
    3. RiptideFrigate
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. Construction ShipCon ship
    6. GuardGuard
    7. UrchinUrchin
    8. Construction ShipCon ship
    9. RiptideFrigate
    10. GuardGuard
    11. OppressorDestroyerdone 6:35 · typical 5:52
    12. Geothermal PowerplantGeodone 7:51 · typical 8:00
    13. OrcaSubmarine
    14. ThistleThistle
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. GuardGuard
    17. HerringMissile corvette
    18. Death CavalryDeath Cavalry
    19. Converter
    20. GuardGuard
    21. Construction ShipCon ship
    22. RiptideFrigate
    23. Converter
    24. UrchinUrchin
    25. Converter
    26. RiptideFrigate
    27. GuardGuard
    28. Converter
    29. RiptideFrigate
    30. OppressorDestroyer
    31. Advanced Metal ExtractorT2 mexdone 10:27 · typical 9:22
    32. Converter
    33. GuardGuard
    34. Converter
    35. OrcaSubmarine
    36. HerringMissile corvette
    37. GuardGuard
    38. Death CavalryDeath Cavalry
    39. Construction ShipCon ship
    40. RiptideFrigate
    41. OppressorDestroyer
    42. GuardGuard
    43. HerringMissile corvette
    44. Advanced Metal ExtractorT2 mex
    45. HerringMissile corvette ×3
    46. Mex
    47. HerringMissile corvette
    48. GuardGuard
    49. Death CavalryDeath Cavalry
    50. Construction ShipCon ship
    51. SlingshotSlingshot
    52. RiptideFrigate
    53. OppressorDestroyer
    54. HerringMissile corvette ×3
    55. Death CavalryDeath Cavalry
    56. Advanced Metal ExtractorT2 mex
    57. Construction ShipCon ship
    58. RiptideFrigate ×3
    59. Tidal ×5
    60. RiptideFrigate
    61. UrchinUrchin
    62. RiptideFrigate
    63. HerringMissile corvette ×2
    64. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    65. HerringMissile corvette
    66. Advanced Metal ExtractorT2 mex
    67. Death CavalryDeath Cavalry
    68. Naval Construction Turret
    69. OppressorDestroyer
    70. Death CavalryDeath Cavalry
    71. Mex
    72. Death CavalryDeath Cavalry ×2
    73. UrchinUrchin
    74. Construction ShipCon ship
    75. RiptideFrigate ×5
    76. ShipyardEat Shipyardreclaimed for its metal
    77. Advanced Metal ExtractorT2 mex
    78. Naval Construction Turret
    79. RiptideFrigate
    80. Tidal ×9
    81. UrchinUrchin
    82. Tidal ×3
    83. RiptideFrigate
    84. Tidal ×3

Counts are medians over the build's games: half of them build more, half fewer. The example game is Zus's (36 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

1226 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156600
4:002894051
5:00410314952
6:005454461231
7:006936931545
8:0086071576891
9:001046824981344
10:001262936252029
11:001519848462834
12:001810062253711
13:002140673614431
14:002501686465348
15:002886797676353
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

Zus

35.7 OS · 08/10/2026

Open source match ↗

3 received units · includes a constructor
120 metal received · 28058 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=1206
Shipyard3:17Middle 50%: 3:02–3:33 · n=1218
Orca4:17Middle 50%: 3:51–4:59 · n=844
Riptide4:37Middle 50%: 4:08–5:21 · n=1191
Oppressor5:52Middle 50%: 5:08–6:36 · n=1113
Geothermal Powerplant8:00Middle 50%: 7:01–9:03 · n=729
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=1059

Played most by

sirniho125games of this buildSHOGVN100games of this buildOptimusprimenutt86games of this buildPRO_Rerory52games of this buildTheSituation43games of this build