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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 · 4 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind
    4. Bot LabBot Labdone 0:58 · 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 · 33 steps
    1. Wind
    2. GraverobberGraverobber
    3. Wind ×2
    4. Energy storage
    5. Wind
    6. GraverobberGraverobber
    7. TrasherTrasher ×2
    8. GraverobberGraverobber ×2
    9. Construction BotCon bot ×2
    10. Con turret
    11. Construction BotCon bot
    12. Converter
    13. ShipyardShipyardfor Beach seadone 3:30 · typical 3:17
    14. Mex
    15. Converter ×3
    16. OrcaSubmarinedone 3:49 · typical 4:17
    17. Mex
    18. Bot LabEat Bot Labreclaimed for its metal
    19. Construction ShipCon ship
    20. Wind
    21. Mex
    22. Radar TowerRadar Tower
    23. RiptideFrigatenot finished by 15:00 · typical 4:37
    24. Wind
    25. OppressorDestroyernot finished by 15:00 · typical 5:52
    26. GuardGuard
    27. JellyfishJellyfish
    28. Wind
    29. HerringMissile corvette
    30. OrcaSubmarine
    31. GuardGuard
    32. Wind ×2
    33. ShipyardShipyarddone 5:04
  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 · 2 steps
    1. Wind
    2. UrchinUrchin
  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 · 92 steps
    1. Wind
    2. OrcaSubmarine
    3. Wind ×2
    4. OrcaSubmarine
    5. Wind ×2
    6. OrcaSubmarine
    7. Wind
    8. OrcaSubmarine
    9. Con turret
    10. RiptideFrigate
    11. Mex
    12. Construction ShipCon ship
    13. RiptideFrigate
    14. Mex
    15. RiptideFrigate
    16. Radar TowerRadar Tower
    17. Geothermal PowerplantGeodone 8:22 · typical 8:00
    18. OppressorDestroyer
    19. GuardGuard ×2
    20. HerringMissile corvette
    21. Death CavalryDeath Cavalry
    22. GuardGuard
    23. Construction ShipCon ship
    24. Mex
    25. OrcaSubmarine
    26. Tidal
    27. Advanced Metal ExtractorT2 mexdone 9:11 · typical 9:22
    28. Mex
    29. Tidal ×2
    30. Radar TowerRadar Tower
    31. Tidal
    32. UrchinUrchin
    33. RiptideFrigate
    34. GuardGuard
    35. RiptideFrigate ×2
    36. Converter
    37. OppressorDestroyer
    38. Converter
    39. Advanced Metal ExtractorT2 mex
    40. Converter
    41. Mex
    42. HerringMissile corvette
    43. Death CavalryDeath Cavalry
    44. Converter
    45. Construction ShipCon ship
    46. OrcaSubmarine
    47. RiptideFrigate ×2
    48. Con turret
    49. RiptideFrigate
    50. OppressorDestroyer
    51. Wind
    52. Advanced Metal ExtractorT2 mex
    53. Wind
    54. HerringMissile corvette
    55. Wind
    56. Death CavalryDeath Cavalry
    57. Wind ×2
    58. Construction ShipCon ship
    59. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    60. Wind
    61. OrcaSubmarine
    62. Wind
    63. RiptideFrigate
    64. Wind ×2
    65. RiptideFrigate
    66. Wind
    67. RiptideFrigate
    68. Wind
    69. OppressorDestroyer
    70. Wind ×3
    71. HerringMissile corvette
    72. Death CavalryDeath Cavalry
    73. Construction ShipCon ship
    74. OrcaSubmarine
    75. Advanced Metal ExtractorT2 mex
    76. RiptideFrigate ×3
    77. OppressorDestroyer
    78. HerringMissile corvette
    79. Death CavalryDeath Cavalry
    80. Construction ShipCon ship
    81. OrcaSubmarine
    82. RiptideFrigate ×2
    83. Twin GuardTwin Guard
    84. RiptideFrigate
    85. Advanced Metal ExtractorT2 mex
    86. OppressorDestroyer
    87. Twin GuardTwin Guard
    88. HerringMissile corvette
    89. Death CavalryDeath Cavalry
    90. Construction ShipCon ship
    91. OrcaSubmarine
    92. RiptideFrigate

Counts are medians over the build's games: half of them build more, half fewer. The example game is Zus's (37 OS, 09/10/2026); 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

36.7 OS · 09/10/2026

Open source match ↗

3 received units · includes a constructor
1299 metal received · 35372 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
Standard geo sea · Cortex Geo sea build order · BAR Build Atlas