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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%) · geo on time (83%)

#naval #eco · 1270 distinct matches · 170 players · 55% of Cortex Geo sea games · team won 54% of 1413 · 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 1270 GAMES · AGAINST STANDARD GEO SEA
  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 Turbine2Windfor allies+2 vs standard
    Order
    1. Bot LabBot Lab after 3 mex, 3 winddone ~1:12, middle half 1:08–1:21

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 3 steps
    1. Mex ×3
    2. Wind ×3
    3. Bot LabBot Labdone 1:04 · typical 1:12
  2. 2

    Bot Lab to Shipyard

    Economy
    • Metal Extractor1Mex
    • Wind Turbine2Wind
    Order
    1. ShipyardShipyard after 4 mex, 4 wind, 1 energy storagedone ~3:19, middle half 3:02–3:38
    Builders
    • Graverobber3 Graverobber
    • Construction Bot3 Con bot
    Army
    • Grunt1 Grunt

    Some games also: con turret (47%) · trasher (40%) · energy storage (38%)

    By 2:54 in all: 4 mex · 4 wind · 1 energy storage

    The example game in this phase · 20 steps
    1. Wind
    2. Construction BotCon bot
    3. Wind
    4. GraverobberGraverobber
    5. Wind
    6. GraverobberGraverobber
    7. Mex
    8. Construction BotCon bot
    9. TrasherTrasher
    10. Con turret
    11. TrasherTrasher
    12. GruntGrunt ×2
    13. JellyfishJellyfish
    14. Construction BotCon bot
    15. GraverobberGraverobber
    16. Energy storage
    17. Mex
    18. Wind
    19. Mex
    20. ShipyardShipyarddone 3:31 · typical 3:19
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Order
    1. Bot LabEat Bot Lab
    Builders
    • Construction Ship1 Con ship
    Army
    • Guard1 Guard
    • Riptide2 Frigate
    • Orca1 Submarine
    • Herring1 Missile corvette
    Other
    • Radar Tower1 Radar Tower

    Some games also: wind (48%) · gunboat (44%) · destroyer (43%) · converter (40%) · con turret (31%)

    By 5:00 in all: 8 mex · 6 wind · 1 energy storage · 1 con turret

    The example game in this phase · 11 steps
    1. Bot LabEat Bot Labreclaimed for its metal
    2. Wind
    3. Radar TowerRadar Tower
    4. RiptideFrigate ×2done 3:46 · typical 4:46
    5. Wind
    6. Construction ShipCon ship
    7. Wind
    8. OrcaSubmarinedone 5:02 · typical 4:20
    9. Geothermal PowerplantGeodone 7:08 · typical 8:13
    10. Wind
    11. Mex
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine6Wind−8 vs standard
    • Energy Converter3Converter+3 vs standard
    Order
    1. Geothermal PowerplantGeo after 9 mex, 9 wind, 2 converterin 78% of games
    Builders
    • Construction Turret1 Con turret
    • Death Cavalry2 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Guard2 Guard
    • Riptide5 Frigate
    • Herring2 Missile corvette

    Some games also: Thistle (41%) · submarine (31%) · Urchin (30%)

    By 10:00 in all: 10 mex · 13 wind (standard 21) · 1 geo · 4 converter (standard 2) · 1 energy storage · 2 con turret

    The example game in this phase · 106 steps
    1. RiptideFrigate
    2. Wind
    3. Mex
    4. Wind
    5. HerringMissile corvette
    6. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    7. Mex ×2
    8. Death CavalryDeath Cavalry
    9. Radar TowerRadar Tower
    10. GuardGuard
    11. RiptideFrigate
    12. GuardGuard ×2
    13. RiptideFrigate
    14. GuardGuard
    15. Advanced Metal ExtractorT2 mexdone 8:37
    16. Converter
    17. RiptideFrigate
    18. Converter
    19. OppressorDestroyernot finished by 15:00 · typical 5:58
    20. RiptideFrigate
    21. Converter
    22. RiptideFrigate
    23. Converter
    24. RiptideFrigate
    25. Converter ×2
    26. RiptideFrigate
    27. Advanced Metal ExtractorT2 mex
    28. RiptideFrigate ×3
    29. Con turret
    30. RiptideFrigate ×2
    31. Advanced Metal ExtractorT2 mex
    32. RiptideFrigate
    33. Radar TowerRadar Tower
    34. CastroCastro
    35. RiptideFrigate
    36. OppressorDestroyer
    37. Advanced Metal ExtractorT2 mex
    38. JellyfishJellyfish
    39. Advanced Metal ExtractorT2 mex
    40. CastroCastro ×2
    41. Metal storage
    42. Con turret
    43. Advanced Metal ExtractorT2 mex
    44. GuardGuard
    45. Radar TowerRadar Tower
    46. GuardGuard
    47. Twin GuardTwin Guard
    48. GruntGrunt
    49. RascalRascal
    50. Advanced Metal ExtractorT2 mex
    51. GruntGrunt
    52. RascalRascal
    53. GruntGrunt
    54. RascalRascal
    55. GruntGrunt
    56. RascalRascal
    57. GruntGrunt
    58. RascalRascal
    59. GruntGrunt
    60. RascalRascal
    61. GruntGrunt
    62. RascalRascal
    63. GruntGrunt
    64. CastroCastro
    65. RascalRascal
    66. GruntGrunt
    67. ScorpionScorpion
    68. RascalRascal
    69. GuardGuard
    70. GruntGrunt
    71. RascalRascal
    72. GruntGrunt
    73. CastroCastro
    74. RascalRascal
    75. GruntGrunt
    76. RascalRascal
    77. GruntGrunt
    78. RascalRascal
    79. GruntGrunt
    80. RascalRascal
    81. GruntGrunt
    82. RascalRascal
    83. Advanced Metal ExtractorT2 mex
    84. GruntGrunt
    85. RascalRascal
    86. GruntGrunt
    87. Radar TowerRadar Tower
    88. RascalRascal
    89. GraverobberGraverobber
    90. RascalRascal
    91. GraverobberGraverobber
    92. RascalRascal
    93. Radar TowerRadar Tower
    94. Bot LabBot Labdone 14:46
    95. GraverobberGraverobber
    96. RascalRascal
    97. Bot LabBot Labdone 14:51
    98. GraverobberGraverobber
    99. RascalRascal
    100. GraverobberGraverobber
    101. RascalRascal
    102. GruntGrunt
    103. RascalRascal
    104. GruntGrunt
    105. RascalRascal
    106. GruntGrunt

Counts are medians over the build's games: half of them build more, half fewer. The example game is SkyFireEX's (42 OS, 14/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:41 · in 75% of games

You get

  • Finch1 Finch from Airfirst at 1:52 · in 83% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 77% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 7:42 · 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

1413 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00155300
4:002865050
5:00405815052
6:005404465250
7:006875920551
8:0085571551910
9:001039924551343
10:001255235432041
11:001514246792801
12:001819060503692
13:002150672774461
14:002526386485371
15:002910799476381
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

SkyFireEX

42.0 OS · 14/10/2026

Open source match ↗

103 received units · includes a constructor
1242 metal received · 55024 energy received

Allied construction assistance is unknown. Timings are observations, not a promise of solo reproducibility.

Typical milestones

Bot Lab1:12Middle 50%: 1:08–1:21 · n=1404
Shipyard3:19Middle 50%: 3:02–3:38 · n=1408
Orca4:20Middle 50%: 3:51–5:01 · n=918
Riptide4:46Middle 50%: 4:11–5:29 · n=1371
Oppressor5:58Middle 50%: 5:13–6:47 · n=1321
Geothermal Powerplant8:13Middle 50%: 7:13–9:26 · n=1346
Advanced Metal Extractor9:24Middle 50%: 8:48–10:21 · n=1244

Played most by

Elpoloow113games of this buildhihimik67games of this buildSHOGVN59games of this buildPRO_Rerory52games of this buildAlphacure50games of this build