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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 · 3 steps
    1. Mex ×3
    2. Wind ×4
    3. Bot LabBot Labdone 1:14 · 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 · 10 steps
    1. Solar
    2. GruntGrunt
    3. Construction BotCon bot
    4. Solar
    5. Radar TowerRadar Tower
    6. Construction BotCon bot
    7. GraverobberGraverobber ×2
    8. Con turret
    9. GraverobberGraverobber
    10. ShipyardShipyarddone 2:55 · 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 · 20 steps
    1. Radar TowerRadar Tower
    2. Construction ShipCon ship
    3. ThistleThistle
    4. Construction BotCon bot
    5. Mex
    6. GraverobberGraverobber
    7. RiptideFrigatedone 4:25 · typical 4:40
    8. Energy storage
    9. GraverobberGraverobber
    10. Con turret
    11. Mex
    12. Converter
    13. Mex
    14. Converter
    15. HerringMissile corvette
    16. Mex ×2
    17. HerringMissile corvette
    18. Bot LabEat Bot Labreclaimed for its metal
    19. Converter
    20. 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 · 59 steps
    1. Geothermal PowerplantGeodone 6:17 · typical 8:13
    2. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    3. Converter
    4. Construction ShipCon ship
    5. Twin GuardTwin Guard
    6. RiptideFrigate
    7. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    8. OppressorDestroyerdone 7:31 · typical 5:54
    9. Twin GuardTwin Guard
    10. Converter ×3
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. UrchinUrchin
    13. Converter
    14. Advanced solar
    15. Converter ×2
    16. Naval Construction Turret
    17. Converter
    18. Twin GuardTwin Guard
    19. Advanced solar
    20. Converter
    21. RiptideFrigate
    22. Converter ×2
    23. Advanced solar
    24. Advanced Metal ExtractorT2 mexdone 8:54 · typical 9:25
    25. Converter
    26. Naval Construction Turret
    27. Death CavalryDeath Cavalry
    28. Converter
    29. RiptideFrigate
    30. Twin GuardTwin Guard
    31. RiptideFrigate
    32. DolphinDolphin
    33. Advanced Metal ExtractorT2 mex
    34. RiptideFrigate
    35. OppressorDestroyer
    36. DolphinDolphin
    37. Advanced Metal ExtractorT2 mex
    38. HerringMissile corvette
    39. Death CavalryDeath Cavalry
    40. Advanced solar
    41. RiptideFrigate
    42. DolphinDolphin
    43. RiptideFrigate ×2
    44. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    45. OppressorDestroyer
    46. Advanced Metal ExtractorT2 mex
    47. Advanced ShipyardAdvanced Shipyarddone 12:32
    48. Advanced solar
    49. HerringMissile corvette
    50. Death CavalryDeath Cavalry
    51. Advanced solar
    52. OppressorDestroyer
    53. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    54. BuccaneerCruiserdone 13:01
    55. OppressorDestroyer
    56. Bot LabBot Labdone 13:10
    57. DespotBattleshipnot finished by 15:00
    58. HerringMissile corvette
    59. Death CavalryDeath Cavalry

Counts are medians over the build's games: half of them build more, half fewer. The example game is LegionMC's (33 OS, 09/10/2026); 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

LegionMC

32.5 OS · 09/10/2026

Open source match ↗

1 received units · includes a constructor
355 metal received · 74976 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