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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

Builds Bot Lab then Shipyard in the cove, eating the lab for metal, and pushes out Orca, Riptide and Oppressor to contest the sea starting around 4-6 minutes, transitioning into a Riptide/Oppressor-heavy navy over the rest of the game.

Usually shipyard in the cove (98%)

#naval #eco · 1747 distinct matches · 185 players · 80% of Cortex Geo sea games · team won 53% of 2045 · 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 1747 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 ~1:13, middle half 1:07–1:25

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 5 steps
    1. Mex ×3
    2. Windfor Air
    3. Wind ×2
    4. Windfor Air
    5. Bot LabBot Labdone 1:16 · typical 1:13
  2. 2

    Bot Lab to Shipyard

    Economy
    • Metal Extractor1Mex
    • Wind Turbine1Wind
    Order
    1. ShipyardShipyard after 4 mex, 5 wind, 1 energy storagedone ~3:18, middle half 3:01–3:36
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (46%) · trasher (39%) · energy storage (36%)

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

    The example game in this phase · 16 steps
    1. Construction BotCon bot
    2. Construction BotCon botfor Beach sea
    3. Wind ×3
    4. Mex
    5. Wind
    6. Construction BotCon bot
    7. Wind ×3
    8. GraverobberGraverobber
    9. Con turret
    10. Mex
    11. Con turret
    12. GraverobberGraverobber
    13. Mex ×2
    14. GraverobberGraverobber
    15. Mex
    16. ShipyardShipyarddone 4:32 · typical 3:18
  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 (49%) · 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 · 2 steps
    1. Geothermal PowerplantGeodone 7:03 · typical 8:13
    2. RiptideFrigatedone 5:00 · typical 4:39
  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 (32%)

    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 · 53 steps
    1. RiptideFrigate
    2. Construction ShipCon ship
    3. Death CavalryDeath Cavalry
    4. Mex
    5. Death CavalryDeath Cavalry
    6. Radar TowerRadar Tower
    7. RiptideFrigate
    8. Mex
    9. RiptideFrigate
    10. Mex
    11. RiptideFrigate
    12. OppressorDestroyerdone 6:54 · typical 5:54
    13. Converter
    14. Death CavalryDeath Cavalry
    15. Construction ShipCon ship
    16. Converter
    17. Mex
    18. Bot LabEat Bot Labreclaimed for its metal
    19. Converter
    20. RiptideFrigate
    21. Mex
    22. RiptideFrigate
    23. Converter
    24. RiptideFrigate ×2
    25. Converter
    26. RiptideFrigate
    27. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    28. OppressorDestroyer
    29. Converter ×2
    30. RiptideFrigate
    31. Converter
    32. OrcaSubmarinedone 9:13 · typical 4:17
    33. Converter
    34. RiptideFrigate ×2
    35. Converter
    36. RiptideFrigate ×2
    37. Mex
    38. Advanced Metal ExtractorT2 mexdone 11:38 · typical 9:24
    39. OppressorDestroyer
    40. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    41. Death CavalryDeath Cavalry ×2
    42. Advanced Metal ExtractorT2 mex
    43. RiptideFrigate
    44. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    45. RiptideFrigate ×2
    46. Advanced Metal ExtractorT2 mex
    47. RiptideFrigate ×2
    48. OppressorDestroyer
    49. RiptideFrigate
    50. Advanced Metal ExtractorT2 mex
    51. RiptideFrigate ×4
    52. OppressorDestroyer
    53. RiptideFrigate ×2

Counts are medians over the build's games: half of them build more, half fewer. The example game is DouglasBacon's (30 OS, 19/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:44 · in 72% 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 7:44 · 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

2045 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00155600
4:002865051
5:00406714652
6:005415440232
7:006891905545
8:0085761551914
9:001040124601361
10:001252535432039
11:001506147142812
12:001800460513664
13:002121072334371
14:002476384345215
15:002856296346211
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

DouglasBacon

30.4 OS · 19/09/2026

Open source match ↗

4 received units · includes a constructor
245 metal received · 16707 energy received

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

Typical milestones

Bot Lab1:13Middle 50%: 1:07–1:25 · n=2018
Shipyard3:18Middle 50%: 3:01–3:36 · n=2036
Orca4:17Middle 50%: 3:52–4:59 · n=1385
Riptide4:39Middle 50%: 4:08–5:22 · n=1992
Oppressor5:54Middle 50%: 5:11–6:40 · n=1869
Geothermal Powerplant8:13Middle 50%: 7:13–9:26 · n=1325
Advanced Metal Extractor9:24Middle 50%: 8:47–10:21 · n=1785

Played most by

SHOGVN222games of this buildsirniho126games of this buildElpoloow118games of this buildOptimusprimenutt95games of this buildhihimik72games of this build