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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. Wind ×5
    3. Energy storage
    4. Wind
    5. Bot LabBot Labdone 1:40 · 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 · 15 steps
    1. Wind
    2. GraverobberGraverobber
    3. Wind ×3
    4. Construction BotCon bot
    5. GraverobberGraverobber
    6. Con turret
    7. Construction BotCon bot
    8. GraverobberGraverobber
    9. Construction BotCon bot
    10. GruntGrunt ×3for Geo
    11. Radar TowerRadar Tower
    12. GruntGrunt ×2for Geo
    13. Mex
    14. GruntGruntfor Geo
    15. ShipyardShipyarddone 4:13 · 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 · 13 steps
    1. Mex
    2. Radar TowerRadar Tower
    3. Bot LabEat Bot Labreclaimed for its metal
    4. Mex
    5. Construction ShipCon ship
    6. GuardGuard
    7. SupporterGunboat ×2
    8. GuardGuard
    9. SupporterGunboat
    10. HerringMissile corvette
    11. RiptideFrigatedone 4:53 · typical 4:39
    12. GuardGuard
    13. RiptideFrigate
  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 · 65 steps
    1. Dragon's TeethDragon's Teeth ×4
    2. Death CavalryDeath Cavalry
    3. Mex
    4. Dragon's TeethDragon's Teeth ×3
    5. Radar TowerRadar Tower
    6. Dragon's TeethDragon's Teeth ×3
    7. Geothermal PowerplantGeodone 6:41 · typical 8:13
    8. Dragon's TeethDragon's Teeth ×4
    9. Mex
    10. Dragon's TeethDragon's Teeth ×4
    11. OppressorDestroyerdone 7:01 · typical 5:54
    12. Dragon's TeethDragon's Teeth ×5
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Dragon's TeethDragon's Teeth ×4
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    16. ThistleThistle
    17. Mex
    18. GuardGuard
    19. RiptideFrigate
    20. UrchinUrchin
    21. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    22. ThistleThistle
    23. Energy storage
    24. Converter
    25. Construction ShipCon ship
    26. Converter ×2
    27. HerringMissile corvette
    28. Converter
    29. Advanced Metal ExtractorT2 mexdone 9:27 · typical 9:24
    30. Converter
    31. Death CavalryDeath Cavalry
    32. Construction ShipCon ship
    33. OppressorDestroyer
    34. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    35. Converter ×3
    36. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    37. Converter
    38. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    39. Converter
    40. HerringMissile corvette
    41. Converter ×2
    42. OppressorDestroyer
    43. Advanced Metal ExtractorT2 mex
    44. Converter ×2
    45. OppressorDestroyer
    46. Converter
    47. Con turret
    48. Construction ShipCon ship
    49. Death CavalryDeath Cavalry
    50. Advanced Metal ExtractorT2 mex
    51. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    52. Death CavalryDeath Cavalry ×2
    53. OppressorDestroyer
    54. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    55. Mex
    56. HerringMissile corvette
    57. OppressorDestroyer
    58. WelderWelder
    59. Advanced Metal ExtractorT2 mex
    60. OppressorDestroyer
    61. WelderWelder ×2
    62. Construction ShipCon ship
    63. WelderWelder
    64. Death CavalryDeath Cavalry
    65. WelderWelder

Counts are medians over the build's games: half of them build more, half fewer. The example game is long_boob_ghost's (35 OS, 08/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:44 · 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

long_boob_ghost

35.4 OS · 08/08/2026

Open source match ↗

27 received units · includes a constructor
3548 metal received · 86638 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
Standard geo sea · Cortex Geo sea build order · BAR Build Atlas