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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

The role's default economy-first opening: bot lab then shipyard in the cove, early frigate and destroyer with a sub, taking geo on time before transitioning into a mixed navy for the rest of the game.

Usually shipyard in the cove (98%)

#naval #eco · 1767 distinct matches · 190 players · 80% of Cortex Geo sea games · team won 53% of 2066 · 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 1767 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 · 6 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind ×3
    4. Energy storage
    5. Wind
    6. Bot LabBot Labdone 1:41 · 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 · 7 steps
    1. GraverobberGraverobber
    2. GruntGrunt
    3. Construction BotCon bot ×3
    4. GraverobberGraverobber
    5. Mex
    6. GraverobberGraverobber
    7. ShipyardShipyarddone 3:35 · 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 · 15 steps
    1. Mex
    2. Construction ShipCon ship
    3. Radar TowerRadar Tower
    4. RiptideFrigatedone 3:58 · typical 4:40
    5. Bot LabEat Bot Labreclaimed for its metal
    6. Mex
    7. GuardGuard
    8. RiptideFrigate
    9. Mex
    10. HerringMissile corvette
    11. Death CavalryDeath Cavalry
    12. Mex
    13. OppressorDestroyerdone 5:34 · typical 5:54
    14. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    15. ThistleThistle
  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 · 75 steps
    1. Con turret
    2. Converter
    3. Wind
    4. RiptideFrigate
    5. Wind
    6. Converter
    7. Wind
    8. Converter
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. Construction ShipCon ship
    11. Wind
    12. Converter
    13. RiptideFrigate
    14. Con turret
    15. Converter
    16. RiptideFrigate
    17. Wind ×2
    18. Converter
    19. HerringMissile corvette
    20. Wind
    21. Mex
    22. Converter
    23. Death CavalryDeath Cavalry
    24. Wind
    25. Mex
    26. OppressorDestroyer
    27. Converter
    28. Geothermal PowerplantGeodone 8:25 · typical 8:13
    29. RiptideFrigate
    30. OppressorDestroyer
    31. RiptideFrigate
    32. Advanced Metal ExtractorT2 mexdone 10:28 · typical 9:25
    33. UrchinUrchin
    34. RiptideFrigate
    35. UrchinUrchin
    36. Mex
    37. HerringMissile corvette
    38. Death CavalryDeath Cavalry
    39. OppressorDestroyer
    40. Mex
    41. Advanced Metal ExtractorT2 mex
    42. Mex
    43. UrchinUrchin
    44. RiptideFrigate ×2
    45. Advanced Metal ExtractorT2 mex
    46. Mex
    47. RiptideFrigate
    48. HerringMissile corvette
    49. Death CavalryDeath Cavalry
    50. OppressorDestroyer
    51. Con turret
    52. Advanced Metal ExtractorT2 mex
    53. Con turret
    54. RiptideFrigate
    55. Con turret
    56. RiptideFrigate
    57. Death CavalryDeath Cavalry ×2
    58. Con turret
    59. RiptideFrigate
    60. Mex
    61. HerringMissile corvette
    62. Death CavalryDeath Cavalry
    63. Advanced Metal ExtractorT2 mex
    64. OppressorDestroyer
    65. JellyfishJellyfish
    66. RiptideFrigate
    67. JellyfishJellyfish
    68. Construction ShipCon ship
    69. RiptideFrigate ×2
    70. HerringMissile corvette
    71. Death CavalryDeath Cavalry
    72. Advanced Metal ExtractorT2 mex
    73. Wind
    74. OppressorDestroyer
    75. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is Ihatesea's (31 OS, 12/10/2026); 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

2066 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
6:005414440232
7:006890905543
8:0085731547908
9:001040824581353
10:001253035282022
11:001507247082804
12:001801760503661
13:002121672254375
14:002477884365224
15:002858596396201
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

Ihatesea

31.0 OS · 12/10/2026

Open source match ↗

3 received units · includes a constructor
3206 metal received · 85641 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=2039
Shipyard3:18Middle 50%: 3:02–3:36 · n=2057
Orca4:17Middle 50%: 3:52–5:00 · n=1397
Riptide4:40Middle 50%: 4:09–5:22 · n=2013
Oppressor5:54Middle 50%: 5:11–6:40 · n=1890
Geothermal Powerplant8:13Middle 50%: 7:13–9:26 · n=1343
Advanced Metal Extractor9:25Middle 50%: 8:48–10:21 · n=1801

Played most by

SHOGVN221games 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