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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

Builds a bot lab then shipyard (usually in the cove), eats the bot lab for metal, and pumps out submarines, frigates and destroyers to contest the sea while supporting allies with energy.

Usually shipyard in the cove (98%)

#naval #eco · 1865 distinct matches · 193 players · 80% of Cortex Geo sea games · team won 53% of 2170 · Recently observed

HOW TO PLAY IT

Key timing: Bot Lab by 1:12, Shipyard by 3:17

  1. Open 3 mex into wind, then drop Bot Lab in cove.
  2. Finish Bot Lab, keep teching mex and wind.
  3. Get Shipyard up and start pumping subs and frigates.
  4. Eat the Bot Lab for metal once you have T1 units defending.
  5. Push out submarine, frigate, destroyer to contest sea.
  6. Bring geothermal online and transition toward T2 constructor.

Phase by phase

TYPICAL OF ITS 1865 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
    • Wind Turbine1Windfor allies
    Order
    1. Bot LabBot Lab after 3 mex, 3 winddone ~1:12, middle half 1:08–1:25

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 8 steps
    1. Mex ×3
    2. Wind
    3. Windfor Air
    4. Wind ×2
    5. Energy storage
    6. Solar
    7. Windfor Air
    8. Bot LabBot Labdone 1:44 · typical 1:12
  2. 2

    Bot Lab to Shipyard

    Economy
    • Metal Extractor1Mex
    • Wind Turbine1Wind
    Order
    1. ShipyardShipyard after 4 mex, 4 wind, 1 energy storagedone ~3:19, middle half 3:02–3:37
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (47%) · trasher (39%) · energy storage (37%)

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

    The example game in this phase · 19 steps
    1. GraverobberGraverobber
    2. Construction BotCon bot
    3. TrasherTrasher
    4. Wind
    5. Con turret
    6. GraverobberGraverobber
    7. Construction BotCon bot
    8. Mex
    9. Wind
    10. GraverobberGraverobber
    11. Construction BotCon bot
    12. Con turret
    13. GruntGrunt
    14. ThistleThistle
    15. GruntGrunt ×3
    16. Mex
    17. Radar TowerRadar Tower
    18. Wind ×2
    19. ShipyardShipyarddone 4:17 · typical 3:19
  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%) · wind (48%) · Guard (48%) · destroyer (44%) · gunboat (39%)

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

    The example game in this phase · 14 steps
    1. Mex ×2
    2. Wind
    3. Radar TowerRadar Tower
    4. Wind
    5. RiptideFrigatedone 4:36 · typical 4:40
    6. GuardGuard
    7. Wind
    8. Mex
    9. Bot LabEat Bot Labreclaimed for its metal
    10. Construction ShipCon ship
    11. Wind
    12. HerringMissile corvette
    13. RiptideFrigate
    14. Wind
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine8Wind
    • Energy Converter2Converter
    Order
    1. Geothermal PowerplantGeo after 9 mex, 9 wind, 2 converterin 53% of games
    Builders
    • Construction Turret1 Con turret
    • Death Cavalry2 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Guard1 Guard
    • Riptide5 Frigate
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: Thistle (39%) · submarine (31%)

    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 · 38 steps
    1. GuardGuard ×2
    2. Wind ×4
    3. RiptideFrigate
    4. Wind ×2
    5. Mex
    6. Radar TowerRadar Tower
    7. GuardGuard ×2
    8. Wind
    9. Mex
    10. OppressorDestroyerdone 7:17 · typical 5:55
    11. GuardGuard
    12. Wind
    13. Geothermal PowerplantGeodone 7:16 · typical 8:09
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. Wind
    16. GuardGuard
    17. UrchinUrchin
    18. Converter
    19. Twin GuardTwin Guard
    20. Converter
    21. HerringMissile corvette
    22. Advanced Metal ExtractorT2 mexdone 8:38 · typical 9:24
    23. RiptideFrigate
    24. ThistleThistle
    25. Con turret
    26. ThistleThistle
    27. RiptideFrigate
    28. Advanced Metal ExtractorT2 mex
    29. JellyfishJellyfish
    30. Death CavalryDeath Cavalry
    31. Construction ShipCon ship
    32. OppressorDestroyer
    33. RiptideFrigate ×7
    34. Con turret
    35. Advanced Metal ExtractorT2 mex
    36. RiptideFrigate
    37. Con turret
    38. RiptideFrigate ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is transientfocus1's (33 OS, 08/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:43 · in 73% of games

You get

  • Finch1 Finch from Airfirst at 1:52 · in 82% of games
  • Hercules1 Light transport from Airfirst at 1:59 · in 76% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 7:43 · in 90% 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

2170 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00155800
4:002865051
5:00406614652
6:005415440231
7:006892905536
8:0085761531891
9:001042524401334
10:001255234872005
11:001509246512777
12:001805860243641
13:002126872114363
14:002481384495211
15:002868296846201
WHAT THE NUMBERS SAY

This is the role's own baseline, winning a bit over half its games with steady eco scaling and sea trades roughly matching losses.

  • + Team wins slightly over half of games played.
  • + Metal production scales from ~4k to ~29.5k by 15:00.
  • − Own metal lost climbs to 6875 by 15:00, matching kills closely.
  • − T2 factory only reached in 40% of games, limiting late power.
THE EXAMPLE YOU ARE READING

transientfocus1

33.1 OS · 08/08/2026

Open source match ↗

4 received units · includes a constructor
50 metal received · 31230 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:08–1:25 · n=2143
Shipyard3:19Middle 50%: 3:02–3:37 · n=2161
Orca4:18Middle 50%: 3:53–5:00 · n=1465
Riptide4:40Middle 50%: 4:09–5:23 · n=2111
Oppressor5:55Middle 50%: 5:12–6:40 · n=1992
Geothermal Powerplant8:09Middle 50%: 7:11–9:24 · n=1440
Advanced Metal Extractor9:24Middle 50%: 8:46–10:21 · n=1891

Played most by

SHOGVN222games of this buildElpoloow126games of this buildsirniho125games of this buildOptimusprimenutt94games of this buildhihimik78games of this build