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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 · 6 steps
    1. Windfor Air
    2. Mex ×3
    3. Solar
    4. Windfor Air
    5. Wind
    6. Bot LabBot Labdone 1:19 · 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. Wind
    2. GraverobberGraverobber
    3. Wind ×2
    4. GraverobberGraverobber
    5. TrasherTrasher
    6. Wind ×2
    7. Construction BotCon bot
    8. Wind
    9. Construction BotCon bot ×2
    10. ShipyardShipyarddone 3:47 · 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 · 29 steps
    1. Construction BotCon bot
    2. Wind ×2
    3. Mex
    4. Construction BotCon bot
    5. Con turret
    6. GruntGrunt
    7. Wind
    8. GruntGrunt
    9. Con turret
    10. Wind
    11. Converter
    12. Construction ShipCon ship
    13. Mex
    14. Converter
    15. GruntGrunt
    16. Mex
    17. Energy storage
    18. GruntGrunt
    19. Construction ShipCon ship
    20. Mex
    21. GruntGrunt
    22. Converter
    23. Mex ×2
    24. Radar TowerRadar Tower
    25. SupporterGunboat
    26. Mex
    27. SupporterGunboat
    28. GruntGrunt
    29. 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 · 125 steps
    1. GuardGuard
    2. RiptideFrigatenot finished by 15:00 · typical 4:40
    3. GruntGrunt
    4. OppressorDestroyernot finished by 15:00 · typical 5:54
    5. Wind
    6. GruntGrunt ×2
    7. GuardGuard
    8. Wind
    9. Mex
    10. GruntGrunt
    11. Radar TowerRadar Tower
    12. GruntGrunt ×2
    13. Wind
    14. GruntGrunt
    15. RiptideFrigate
    16. Wind
    17. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    18. GruntGrunt
    19. GraverobberGraverobber
    20. RiptideFrigate
    21. GuardGuard
    22. Mex
    23. Wind
    24. OppressorDestroyer
    25. GraverobberGraverobber
    26. Mex
    27. Wind
    28. Radar TowerRadar Tower
    29. Wind
    30. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    31. Radar TowerRadar Tower
    32. GuardGuard
    33. GraverobberGraverobber
    34. Converter
    35. Radar TowerRadar Tower
    36. Advanced Metal ExtractorT2 mexdone 8:33 · typical 9:25
    37. GuardGuard
    38. Geothermal PowerplantGeodone 9:04 · typical 8:13
    39. HerringMissile corvette
    40. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    41. Wind
    42. GuardGuard
    43. Death CavalryDeath Cavalry
    44. Wind
    45. HerringMissile corvette
    46. RiptideFrigate
    47. Wind
    48. Advanced Metal ExtractorT2 mex
    49. Construction BotCon bot
    50. GuardGuard
    51. Wind
    52. Advanced Metal ExtractorT2 mex
    53. Construction BotCon bot
    54. Con turret
    55. Wind
    56. Con turret
    57. Construction BotCon bot
    58. Hovercraft PlatformHovercraft Platformdone 9:57
    59. EradicatorEradicator
    60. Con turret
    61. Wind
    62. Construction HovercraftCon hovercraft
    63. Advanced Metal ExtractorT2 mex
    64. Construction HovercraftCon hovercraft
    65. Wind
    66. GoonGoon ×5
    67. BirdeaterHover anti-air
    68. Con turret
    69. BirdeaterHover anti-air
    70. Wind
    71. GoonGoon ×10
    72. Wind
    73. GraverobberGraverobber
    74. Advanced Metal ExtractorT2 mex
    75. Con turret
    76. Bot LabEat Bot Labreclaimed for its metal
    77. Wind
    78. Con turret
    79. Twin GuardTwin Guard
    80. Con turret
    81. ShipyardShipyarddone 11:49
    82. Advanced Metal ExtractorT2 mex
    83. Wind
    84. Construction ShipCon ship ×2
    85. Naval Construction Turret
    86. Radar TowerRadar Tower
    87. Naval Construction Turret
    88. Advanced ShipyardAdvanced Shipyarddone 12:34
    89. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    90. Wind ×2
    91. Hovercraft PlatformEat Hovercraft Platformreclaimed for its metal
    92. Radar TowerRadar Tower
    93. Wind ×3
    94. Fusion ReactorFusiondone 13:34
    95. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    96. Wind
    97. BrimstoneAnti-swarm shipdone 13:03
    98. GuardGuard
    99. BrimstoneAnti-swarm ship
    100. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    101. Wind
    102. Advanced Construction SubAdvanced Construction Sub
    103. Converter
    104. Fusion ReactorFusion
    105. BrimstoneAnti-swarm ship
    106. GuardGuard
    107. Death CavalryDeath Cavalry
    108. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 14:24
    109. BrimstoneAnti-swarm ship
    110. Wind
    111. Death CavalryDeath Cavalry
    112. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    113. Naval Construction Turret
    114. GuardGuard
    115. Wind
    116. Converter
    117. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantnot finished by 15:00
    118. Death CavalryDeath Cavalry
    119. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    120. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    121. Con turret
    122. Wind
    123. BrimstoneAnti-swarm ship
    124. Converter
    125. Death CavalryDeath Cavalry

Counts are medians over the build's games: half of them build more, half fewer. The example game is Cinnamon18's (31 OS, 16/08/2026); 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

Cinnamon18

30.6 OS · 16/08/2026

Open source match ↗

3 received units · includes a constructor
813 metal received · 80578 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