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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 · 1797 distinct matches · 191 players · 80% of Cortex Geo sea games · team won 53% of 2101 · 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 1797 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 · 3 steps
    1. Mex ×3
    2. Wind ×5
    3. Bot LabBot Labdone 1:28 · 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 (47%) · trasher (39%) · energy storage (36%)

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

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

Counts are medians over the build's games: half of them build more, half fewer. The example game is Zus's (37 OS, 13/10/2026); 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

2101 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00155500
4:002864051
5:00406414652
6:005412440232
7:006889905543
8:0085691541901
9:001041124511350
10:001252935102010
11:001507746792784
12:001800460413641
13:002121071754367
14:002476384045204
15:002857995926202
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

Zus

36.9 OS · 13/10/2026

Open source match ↗

3 received units · includes a constructor
167 metal received · 32287 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=2074
Shipyard3:18Middle 50%: 3:02–3:36 · n=2092
Orca4:18Middle 50%: 3:52–5:00 · n=1422
Riptide4:40Middle 50%: 4:09–5:23 · n=2045
Oppressor5:54Middle 50%: 5:12–6:40 · n=1922
Geothermal Powerplant8:12Middle 50%: 7:12–9:25 · n=1375
Advanced Metal Extractor9:25Middle 50%: 8:48–10:22 · n=1831

Played most by

SHOGVN221games of this buildsirniho126games of this buildElpoloow118games of this buildOptimusprimenutt95games of this buildhihimik77games of this build