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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 · 4 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind
    4. Bot LabBot Labdone 1:05 · 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 · 14 steps
    1. Wind
    2. GraverobberGraverobber
    3. Wind
    4. Construction BotCon bot ×2
    5. GraverobberGraverobber
    6. Mex
    7. Construction BotCon bot ×2
    8. GruntGrunt
    9. Mex
    10. GruntGrunt
    11. Energy storage
    12. Mex
    13. Converter
    14. ShipyardShipyarddone 3:36 · 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 · 22 steps
    1. GuardGuard
    2. Bot LabEat Bot Labreclaimed for its metal
    3. Construction ShipCon ship
    4. Con turret
    5. SupporterGunboat
    6. Converter
    7. GuardGuard
    8. SupporterGunboat ×2
    9. Mex
    10. Wind
    11. SupporterGunboat
    12. Radar TowerRadar Tower
    13. SupporterGunboat
    14. HerringMissile corvette
    15. ThistleThistle
    16. Wind
    17. OrcaSubmarinedone 4:54 · typical 4:17
    18. Mex
    19. ThistleThistle
    20. Wind
    21. RiptideFrigatedone 5:09 · typical 4:40
    22. Wind
  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 · 93 steps
    1. Wind
    2. RiptideFrigate
    3. Wind
    4. Mex
    5. Death CavalryDeath Cavalry
    6. Wind ×2
    7. OppressorDestroyerdone 6:33 · typical 5:54
    8. Wind
    9. Radar TowerRadar Tower
    10. Wind
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. Wind
    13. ThistleThistle
    14. Geothermal PowerplantGeodone 8:05 · typical 8:12
    15. RiptideFrigate
    16. Wind
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. RiptideFrigate
    19. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    20. RiptideFrigate ×2
    21. Converter
    22. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    23. RiptideFrigate
    24. Converter
    25. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    26. Converter
    27. RiptideFrigate
    28. OppressorDestroyer
    29. Converter
    30. Advanced Metal ExtractorT2 mexdone 10:24 · typical 9:25
    31. Converter
    32. OppressorDestroyer
    33. Converter
    34. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    35. Advanced Metal ExtractorT2 mex
    36. Radar TowerRadar Tower
    37. HerringMissile corvette
    38. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    39. HerringMissile corvette ×2
    40. Advanced Metal ExtractorT2 mex
    41. OppressorDestroyer
    42. Naval Construction Turret
    43. Death CavalryDeath Cavalry
    44. Advanced Metal ExtractorT2 mex
    45. Naval Construction Turret
    46. Con turret
    47. Death CavalryDeath Cavalry
    48. Naval Construction Turret
    49. Con turret
    50. ShipyardShipyarddone 12:18
    51. HerringMissile corvette
    52. Death CavalryDeath Cavalry
    53. SupporterGunboat
    54. RiptideFrigate
    55. SupporterGunboat ×2
    56. RiptideFrigate
    57. SupporterGunboat ×2
    58. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    59. SupporterGunboat
    60. RiptideFrigate
    61. SupporterGunboat ×2
    62. RiptideFrigate
    63. SupporterGunboat ×3
    64. OppressorDestroyer
    65. SupporterGunboat ×2
    66. Mex
    67. SupporterGunboat
    68. HerringMissile corvette
    69. Construction ShipCon ship
    70. HerringMissile corvette ×2
    71. Death CavalryDeath Cavalry
    72. HerringMissile corvette
    73. Mex
    74. HerringMissile corvette
    75. Naval Hovercraft PlatformNaval Hovercraft Platformdone 14:06
    76. RiptideFrigate
    77. HerringMissile corvette
    78. RiptideFrigate
    79. Advanced Metal ExtractorT2 mex
    80. Construction ShipCon ship
    81. MangonelHover rocket bot
    82. HerringMissile corvette
    83. Naval Energy Converter
    84. Mex
    85. MangonelHover rocket bot
    86. HerringMissile corvette
    87. Bot LabBot Lab ×2done 14:45
    88. Naval Energy Converter
    89. MangonelHover rocket bot
    90. HerringMissile corvette
    91. GruntGrunt
    92. Tidal
    93. GruntGrunt

Counts are medians over the build's games: half of them build more, half fewer. The example game is swiss_cheese's (35 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

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

swiss_cheese

35.4 OS · 14/10/2026

Open source match ↗

6 received units · includes a constructor
262 metal received · 46630 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