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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 · 1756 distinct matches · 186 players · 80% of Cortex Geo sea games · team won 53% of 2055 · 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 1756 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 · 4 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind
    4. Bot LabBot Labdone 1:03 · 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 3:02–3:36
    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 · 20 steps
    1. Wind
    2. Construction BotCon bot
    3. GraverobberGraverobber
    4. Wind ×2
    5. GraverobberGraverobber
    6. Mex
    7. Construction BotCon bot
    8. TrasherTrasher
    9. Con turret
    10. TrasherTrasher
    11. GruntGrunt ×2
    12. Construction BotCon bot
    13. GraverobberGraverobber
    14. Energy storage
    15. GruntGrunt ×2
    16. Twin GuardTwin Guard
    17. GruntGrunt
    18. Mex
    19. GruntGrunt ×2
    20. ShipyardShipyarddone 4:05 · 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 · 7 steps
    1. GruntGrunt
    2. Radar TowerRadar Tower
    3. Mex
    4. GruntGrunt ×4
    5. Bot LabEat Bot Labreclaimed for its metal
    6. Construction ShipCon ship
    7. OrcaSubmarinedone 5:08 · typical 4:17
  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 (38%) · 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 · 70 steps
    1. RiptideFrigatedone 5:25 · typical 4:39
    2. Advanced Metal ExtractorT2 mexdone 7:25 · typical 9:25
    3. Geothermal PowerplantGeodone 7:41 · typical 8:13
    4. RiptideFrigate
    5. Mex ×4
    6. SeekerSeeker
    7. Radar TowerRadar Tower
    8. GuardGuard
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. GuardGuard
    11. RiptideFrigate
    12. GuardGuard
    13. Mex
    14. OppressorDestroyerdone 7:58 · typical 5:54
    15. Advanced Metal ExtractorT2 mex
    16. Converter ×2
    17. OppressorDestroyer
    18. Converter
    19. Advanced Metal ExtractorT2 mex
    20. OppressorDestroyer
    21. JellyfishJellyfish
    22. Mex
    23. Converter
    24. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    25. Death CavalryDeath Cavalry
    26. GuardGuard
    27. Converter
    28. UrchinUrchin
    29. HerringMissile corvette
    30. Advanced Metal ExtractorT2 mex
    31. RiptideFrigate
    32. Converter
    33. RiptideFrigate ×4
    34. Advanced Metal ExtractorT2 mex
    35. RiptideFrigate
    36. Con turret
    37. RiptideFrigate
    38. Con turret
    39. Advanced Metal ExtractorT2 mex
    40. Con turret
    41. Metal storage
    42. RiptideFrigate
    43. Metal storage
    44. RiptideFrigate
    45. Wind
    46. RiptideFrigate
    47. Wind ×2
    48. OppressorDestroyer
    49. Wind
    50. Death CavalryDeath Cavalry
    51. Wind
    52. Mex
    53. Wind
    54. Construction ShipCon ship
    55. Wind
    56. Construction ShipCon ship
    57. Wind
    58. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 14:27
    59. Construction ShipCon ship
    60. Wind
    61. Construction ShipCon ship
    62. Wind ×7
    63. Con turret ×2
    64. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    65. Con turret ×6
    66. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    67. Mex
    68. Advanced ShipyardAdvanced Shipyardnot finished by 15:00
    69. Naval Construction Turret ×3
    70. Naval Radar / Sonar TowerNaval Radar / Sonar Tower

Counts are medians over the build's games: half of them build more, half fewer. The example game is SkyFireEX's (41 OS, 14/10/2026); 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

2055 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00155700
4:002865051
5:00406614652
6:005414441232
7:006890905545
8:0085761551914
9:001040524601360
10:001252635382031
11:001507747142812
12:001801760503664
13:002121572284375
14:002478384355225
15:002859096346211
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

SkyFireEX

41.4 OS · 14/10/2026

Open source match ↗

5 received units · includes a constructor
293 metal received · 112142 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=2028
Shipyard3:18Middle 50%: 3:02–3:36 · n=2046
Orca4:17Middle 50%: 3:52–4:59 · n=1392
Riptide4:39Middle 50%: 4:08–5:22 · n=2002
Oppressor5:54Middle 50%: 5:11–6:39 · n=1879
Geothermal Powerplant8:13Middle 50%: 7:13–9:26 · n=1335
Advanced Metal Extractor9:25Middle 50%: 8:47–10:21 · n=1793

Played most by

SHOGVN221games of this buildsirniho126games of this buildElpoloow118games of this buildOptimusprimenutt95games of this buildhihimik72games of this build