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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 · 5 steps
    1. Mex ×3
    2. Wind ×2
    3. Wind ×2for Air
    4. Energy storage
    5. Bot LabBot Labdone 1:27 · 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 · 12 steps
    1. Wind
    2. Construction BotCon bot
    3. Windfor Air
    4. Con turret
    5. GraverobberGraverobber
    6. TrasherTrasher
    7. GraverobberGraverobber
    8. Mex
    9. Construction BotCon bot
    10. Radar TowerRadar Tower
    11. GruntGrunt
    12. ShipyardShipyarddone 3:12 · 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. Mex
    4. Bot LabEat Bot Labreclaimed for its metal
    5. Radar TowerRadar Tower
    6. RiptideFrigatedone 3:35 · typical 4:40
    7. Mex
    8. RiptideFrigate
    9. Radar TowerRadar Tower
    10. Death CavalryDeath Cavalry
    11. Mex
    12. HerringMissile corvette
    13. GuardGuard
    14. OppressorDestroyerdone 5:10 · typical 5:54
    15. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
  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 · 85 steps
    1. Geothermal PowerplantGeodone 7:47 · typical 8:13
    2. Mex
    3. RiptideFrigate
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. RiptideFrigate ×3
    6. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    7. Death CavalryDeath Cavalry
    8. HerringMissile corvette
    9. OppressorDestroyer
    10. Mex
    11. Advanced Metal ExtractorT2 mexdone 8:57 · typical 9:25
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. RiptideFrigate
    14. Wind
    15. Converter
    16. Construction ShipCon ship
    17. Mex
    18. Wind
    19. Converter
    20. Naval Construction Turret
    21. Wind
    22. Mex
    23. Naval Radar / Sonar TowerNaval Radar / Sonar Tower ×2
    24. Wind
    25. Advanced Metal ExtractorT2 mex
    26. Converter
    27. Naval Construction Turret
    28. Wind
    29. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    30. Advanced ShipyardAdvanced Shipyarddone 10:21
    31. Wind
    32. Converter
    33. Bot LabBot Labdone 10:25
    34. Con turret
    35. Advanced Metal ExtractorT2 mex
    36. Con turret
    37. ShipyardEat Shipyardreclaimed for its metal
    38. Advanced Construction SubAdvanced Construction Sub
    39. Construction BotCon bot
    40. PathfinderPathfinder
    41. Construction BotCon bot
    42. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 11:24
    43. PathfinderPathfinder
    44. Advanced Metal ExtractorT2 mex
    45. PathfinderPathfinder
    46. Construction BotCon bot
    47. Con turret ×2
    48. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    49. Wind ×2
    50. Advanced Metal ExtractorT2 mex
    51. Wind ×3
    52. Advanced Construction SubAdvanced Construction Sub
    53. Wind ×4
    54. Naval Construction Turret
    55. Wind ×6
    56. Naval Construction Turret
    57. Wind
    58. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    59. Wind ×4
    60. Naval Construction Turret
    61. Advanced Metal ExtractorT2 mex
    62. Wind ×2
    63. BrimstoneAnti-swarm shipdone 12:49
    64. Naval Construction Turret
    65. Naval Fusion ReactorNaval Fusion Reactornot finished by 15:00
    66. Wind ×5
    67. BrimstoneAnti-swarm ship
    68. Wind ×5
    69. BrimstoneAnti-swarm ship
    70. Wind ×2
    71. Pit BullPit Bull
    72. Wind ×2
    73. BrimstoneAnti-swarm ship
    74. Wind ×4
    75. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    76. BrimstoneAnti-swarm ship
    77. Wind ×3
    78. Pit BullPit Bull
    79. Wind ×2
    80. DespotBattleshipnot finished by 15:00
    81. Wind ×15
    82. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    83. Wind ×4
    84. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    85. Wind ×8

Counts are medians over the build's games: half of them build more, half fewer. The example game is Optimusprimenutt's (42 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

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

Optimusprimenutt

41.5 OS · 13/10/2026

Open source match ↗

20 received units · includes a constructor
191 metal received · 61448 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