BAR / BUILD ATLAS
← All builds
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 · 6 steps
    1. Mex ×2
    2. Wind
    3. Mex
    4. Wind
    5. Solar
    6. Bot LabBot Labdone 1:10 · 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 · 14 steps
    1. Wind
    2. GraverobberGraverobber
    3. Wind ×2for Air
    4. Wind
    5. GraverobberGraverobber
    6. Construction BotCon bot
    7. GraverobberGraverobber
    8. Construction BotCon bot
    9. Con turret
    10. Construction BotCon bot
    11. TrasherTrasher
    12. Energy storage
    13. Mex
    14. ShipyardShipyarddone 3:28 · 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 · 17 steps
    1. Converter ×3
    2. Bot LabEat Bot Labreclaimed for its metal
    3. Converter ×2
    4. OrcaSubmarinedone 4:00 · typical 4:17
    5. Mex
    6. Converter ×2
    7. Mex
    8. Converter
    9. Construction ShipCon ship
    10. Converter
    11. HerringMissile corvette
    12. Mex ×2
    13. OppressorDestroyerdone 5:00 · typical 5:54
    14. Mex
    15. Radar TowerRadar Tower
    16. Mex
    17. GuardGuard
  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 · 101 steps
    1. RiptideFrigatedone 5:18 · typical 4:40
    2. GuardGuard
    3. RiptideFrigate
    4. GuardGuard
    5. Mex
    6. GuardGuard
    7. RiptideFrigate ×2
    8. GuardGuard
    9. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    10. GuardGuard
    11. OppressorDestroyer
    12. GuardGuard ×2
    13. RiptideFrigate
    14. Construction ShipCon ship
    15. Con turret
    16. Death CavalryDeath Cavalry ×2
    17. HerringMissile corvette ×5
    18. Tidal
    19. Con turret
    20. Geothermal PowerplantGeodone 9:14 · typical 8:13
    21. Advanced Metal ExtractorT2 mexdone 9:33 · typical 9:25
    22. Wind
    23. Tidal
    24. Wind ×2
    25. Tidal ×2
    26. Wind
    27. Death CavalryDeath Cavalry
    28. Wind
    29. Tidal
    30. Vehicle PlantVehicle Plantdone 9:21
    31. Wind ×2
    32. Death CavalryDeath Cavalry
    33. Wind ×2
    34. Tidal
    35. Wind ×2
    36. OppressorDestroyer
    37. Wind ×4
    38. Tidal
    39. BruteBrute
    40. Wind ×2
    41. Advanced Metal ExtractorT2 mex
    42. Wind ×2
    43. Tidal
    44. Wind ×2
    45. OppressorDestroyer
    46. BruteBrute
    47. Tidal
    48. Wind
    49. GuardGuard
    50. Tidal
    51. BruteBrute
    52. GuardGuard
    53. Advanced Metal ExtractorT2 mex
    54. Twin GuardTwin Guard
    55. Death CavalryDeath Cavalry
    56. GuardGuard
    57. BruteBrute
    58. Twin GuardTwin Guard
    59. GuardGuard
    60. Death CavalryDeath Cavalry
    61. BruteBrute
    62. Twin GuardTwin Guard ×2
    63. Death CavalryDeath Cavalry
    64. Twin GuardTwin Guard
    65. BruteBrute
    66. GuardGuard
    67. Twin GuardTwin Guard
    68. Advanced Metal ExtractorT2 mex
    69. Twin GuardTwin Guard
    70. BruteBrute
    71. Twin GuardTwin Guard ×3
    72. Con turret
    73. BruteBrute
    74. Con turret
    75. Fusion ReactorFusiondone 13:29
    76. Con turret
    77. BruteBrute
    78. Twin GuardTwin Guard ×2
    79. Construction VehicleCon vehicle
    80. Con turret
    81. Fusion ReactorFusion
    82. Radar TowerRadar Tower
    83. Con turret
    84. Construction VehicleCon vehicle
    85. Advanced Metal ExtractorT2 mex
    86. CastroCastro
    87. Construction VehicleCon vehicle
    88. ShipyardShipyarddone 14:12
    89. Construction VehicleCon vehicle ×2
    90. HerringMissile corvette
    91. Con turret
    92. Construction VehicleCon vehicle
    93. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    94. OppressorDestroyer
    95. Construction VehicleCon vehicle
    96. Converter
    97. Construction VehicleCon vehicle
    98. OppressorDestroyer
    99. Construction ShipCon ship
    100. Construction VehicleCon vehicle
    101. Converter

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

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

El_Turco

37.2 OS · 13/10/2026

Open source match ↗

7 received units · includes a constructor
136 metal received · 117997 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
Standard geo sea · Cortex Geo sea build order · BAR Build Atlas