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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 · 1776 distinct matches · 190 players · 80% of Cortex Geo sea games · team won 53% of 2075 · 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 1776 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 ×2for Air
    3. Wind ×3
    4. Energy storage
    5. Bot LabBot Labdone 1:33 · 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 · 4 wind · 1 energy storage

    The example game in this phase · 9 steps
    1. GraverobberGraverobber ×2
    2. Construction BotCon bot ×3
    3. Mex
    4. GraverobberGraverobber
    5. GruntGrunt ×2
    6. TrasherTrasher
    7. Con turret
    8. Converter
    9. ShipyardShipyarddone 3:34 · 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 · 18 steps
    1. Mex
    2. Bot LabEat Bot Labreclaimed for its metal
    3. OrcaSubmarinedone 3:48 · typical 4:17
    4. Converter
    5. Construction ShipCon ship
    6. RiptideFrigatedone 4:08 · typical 4:40
    7. Mex
    8. HerringMissile corvette
    9. GuardGuard
    10. Converter
    11. Mex
    12. GuardGuard
    13. Radar TowerRadar Tower
    14. RiptideFrigate
    15. Converter
    16. Wind
    17. Radar TowerRadar Tower
    18. Mex
  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 · 86 steps
    1. GuardGuard
    2. Wind
    3. OppressorDestroyerdone 6:12 · typical 5:54
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. GuardGuard
    6. Wind ×2
    7. GuardGuard
    8. ThistleThistle
    9. Wind
    10. Mex
    11. Death CavalryDeath Cavalry
    12. Wind
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. RiptideFrigate
    15. Wind ×2
    16. RiptideFrigate
    17. Wind ×2
    18. RiptideFrigate
    19. Wind ×5
    20. HerringMissile corvette
    21. Wind ×2
    22. Con turret
    23. Wind
    24. Construction ShipCon ship
    25. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    26. Wind
    27. GuardGuard
    28. OppressorDestroyer
    29. Wind
    30. Advanced Metal ExtractorT2 mexdone 9:41 · typical 9:25
    31. Wind
    32. Death CavalryDeath Cavalry
    33. RiptideFrigate ×2
    34. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    35. Death CavalryDeath Cavalry
    36. HerringMissile corvette
    37. Wind
    38. Advanced Metal ExtractorT2 mex
    39. Wind
    40. Construction ShipCon ship
    41. Wind
    42. UrchinUrchin
    43. OppressorDestroyer
    44. Wind
    45. Advanced solar ×2
    46. Death CavalryDeath Cavalry
    47. Advanced Metal ExtractorT2 mex
    48. RiptideFrigate
    49. HerringMissile corvette
    50. Con turret
    51. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    52. Construction ShipCon ship
    53. Wind
    54. OppressorDestroyer
    55. Wind
    56. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    57. Death CavalryDeath Cavalry
    58. Wind
    59. HerringMissile corvette
    60. Wind
    61. Death CavalryDeath Cavalry
    62. Advanced Metal ExtractorT2 mex
    63. Wind
    64. RiptideFrigate
    65. Wind
    66. RiptideFrigate
    67. Wind
    68. HerringMissile corvette
    69. Wind
    70. OppressorDestroyer
    71. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    72. Wind ×2
    73. Death CavalryDeath Cavalry
    74. Wind
    75. RiptideFrigate ×2
    76. HerringMissile corvette
    77. Advanced Metal ExtractorT2 mex
    78. Converter
    79. OppressorDestroyer
    80. Converter
    81. Death CavalryDeath Cavalry
    82. Converter
    83. RiptideFrigate
    84. Converter
    85. RiptideFrigate
    86. Naval Construction Turret

Counts are medians over the build's games: half of them build more, half fewer. The example game is mobius1's (33 OS, 05/09/2026); 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

2075 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00155500
4:002864051
5:00406514652
6:005413440232
7:006889905542
8:0085641548910
9:001040324651351
10:001252635202010
11:001505947012801
12:001800460503655
13:002121072004371
14:002476384075223
15:002857996206202
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

mobius1

32.6 OS · 05/09/2026

Open source match ↗

3 received units · includes a constructor
38 metal received · 59905 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=2048
Shipyard3:18Middle 50%: 3:02–3:36 · n=2066
Orca4:17Middle 50%: 3:52–5:00 · n=1402
Riptide4:40Middle 50%: 4:08–5:22 · n=2022
Oppressor5:54Middle 50%: 5:11–6:40 · n=1899
Geothermal Powerplant8:12Middle 50%: 7:13–9:26 · n=1351
Advanced Metal Extractor9:25Middle 50%: 8:48–10:22 · n=1808

Played most by

SHOGVN220games of this buildsirniho126games of this buildElpoloow118games of this buildOptimusprimenutt95games of this buildhihimik74games of this build