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Geo sea / Cortex / Economy first / OBSERVED BUILD

Standard geo sea

Cortex Geo sea build order · Supreme Isthmus

Builds a bot lab then shipyard (usually in the cove), eats the bot lab for metal, and pumps out submarines, frigates and destroyers to contest the sea while supporting allies with energy.

Usually shipyard in the cove (98%)

#naval #eco · 1967 distinct matches · 199 players · 80% of Cortex Geo sea games · team won 53% of 2279 · 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 1967 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 ~1:12, middle half 1:07–1:25

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 7 steps
    1. Mex ×2
    2. Windfor Air
    3. Mex
    4. Solar
    5. Windfor Air
    6. Wind
    7. Bot LabBot Labdone 1:14 · 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 3:02–3:37
    Builders
    • Graverobber3 Graverobber
    • Construction Bot3 Con bot
    Army
    • Grunt1 Grunt

    Some games also: con turret (47%) · trasher (39%) · energy storage (36%)

    By 2:52 in all: 4 mex · 4 wind · 1 energy storage

    The example game in this phase · 8 steps
    1. Wind
    2. GraverobberGraverobber ×3
    3. Construction BotCon bot ×2
    4. TrasherTrasher
    5. Con turret
    6. GruntGrunt ×2
    7. Mex
    8. ShipyardShipyarddone 3:19 · typical 3:19
  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 (48%) · Guard (48%) · wind (48%) · destroyer (43%) · gunboat (39%)

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

    The example game in this phase · 13 steps
    1. Energy storage
    2. Mex
    3. Construction ShipCon ship
    4. Mex
    5. Bot LabEat Bot Labreclaimed for its metal
    6. OppressorDestroyerdone 4:09 · typical 5:55
    7. Mex
    8. HerringMissile corvette
    9. Mex
    10. RiptideFrigatedone 4:39 · typical 4:40
    11. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    12. RiptideFrigate
    13. Geothermal PowerplantGeodone 7:14 · typical 8:07
  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 54% 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 (40%) · submarine (30%)

    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 · 190 steps
    1. OppressorDestroyer
    2. Mex
    3. Converter
    4. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    5. Mex ×2
    6. RiptideFrigate
    7. Converter
    8. Radar TowerRadar Tower
    9. ThistleThistle
    10. Converter
    11. ThistleThistle
    12. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    13. Death CavalryDeath Cavalry
    14. Converter
    15. Wind ×2
    16. Con turret
    17. Wind ×3
    18. Radar TowerRadar Tower
    19. Wind
    20. Construction ShipCon ship
    21. Wind
    22. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    23. ThistleThistle
    24. Wind
    25. Construction ShipCon ship
    26. Wind
    27. HerringMissile corvette
    28. Wind
    29. HerringMissile corvette
    30. Wind
    31. ThistleThistle
    32. Wind
    33. HerringMissile corvette
    34. Wind
    35. HerringMissile corvette
    36. Wind
    37. HerringMissile corvette
    38. Wind ×3
    39. Naval Construction Turret
    40. Wind
    41. Naval Construction Turret
    42. Wind ×4
    43. Twin GuardTwin Guard
    44. Advanced Metal ExtractorT2 mexdone 10:28 · typical 9:24
    45. Wind
    46. OppressorDestroyer
    47. Wind
    48. Con turret
    49. Wind
    50. Con turret
    51. Wind ×3
    52. Tidal
    53. Con turret
    54. Tidal
    55. OppressorDestroyer
    56. Wind
    57. Death CavalryDeath Cavalry
    58. Wind
    59. Tidal
    60. Advanced Metal ExtractorT2 mex
    61. Converter
    62. Wind
    63. Tidal
    64. Twin GuardTwin Guard
    65. Converter
    66. Wind
    67. Tidal
    68. Wind
    69. Converter
    70. Tidal
    71. Death CavalryDeath Cavalry
    72. Wind
    73. Converter
    74. Wind
    75. Tidal
    76. Wind
    77. Converter
    78. Tidal
    79. Death CavalryDeath Cavalry
    80. Wind
    81. Converter
    82. Wind
    83. Tidal
    84. Converter
    85. Wind
    86. RiptideFrigate
    87. Tidal
    88. Converter
    89. Wind
    90. Converter
    91. Wind
    92. RiptideFrigate
    93. Tidal
    94. Converter
    95. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    96. Wind
    97. Advanced Metal ExtractorT2 mex
    98. RiptideFrigate
    99. Converter
    100. Dragon's TeethDragon's Teeth
    101. Tidal
    102. Dragon's TeethDragon's Teeth
    103. Wind
    104. Converter
    105. Dragon's TeethDragon's Teeth ×2
    106. Tidal
    107. Wind
    108. Dragon's TeethDragon's Teeth
    109. RiptideFrigate
    110. Dragon's TeethDragon's Teeth
    111. Wind
    112. Tidal
    113. Dragon's TeethDragon's Teeth ×2
    114. Wind
    115. Dragon's TeethDragon's Teeth
    116. RiptideFrigate
    117. Wind
    118. Dragon's TeethDragon's Teeth ×2
    119. Tidal
    120. Wind
    121. Dragon's TeethDragon's Teeth ×2
    122. OppressorDestroyer
    123. Tidal
    124. Wind
    125. Dragon's TeethDragon's Teeth ×2
    126. Wind
    127. Tidal
    128. HerringMissile corvette
    129. Dragon's TeethDragon's Teeth
    130. Wind
    131. Dragon's TeethDragon's Teeth
    132. OppressorDestroyer
    133. Tidal
    134. Dragon's TeethDragon's Teeth
    135. Wind
    136. Dragon's TeethDragon's Teeth
    137. Advanced Metal ExtractorT2 mex
    138. Tidal
    139. Dragon's TeethDragon's Teeth
    140. Wind
    141. Dragon's TeethDragon's Teeth
    142. Wind
    143. Dragon's TeethDragon's Teeth
    144. Tidal
    145. OppressorDestroyer
    146. Dragon's TeethDragon's Teeth
    147. Wind
    148. Dragon's TeethDragon's Teeth
    149. Tidal
    150. Dragon's TeethDragon's Teeth
    151. Wind
    152. Dragon's TeethDragon's Teeth
    153. Tidal
    154. Wind
    155. Dragon's TeethDragon's Teeth
    156. OppressorDestroyer
    157. Dragon's TeethDragon's Teeth
    158. Wind
    159. Dragon's TeethDragon's Teeth
    160. Tidal
    161. Dragon's TeethDragon's Teeth
    162. Wind
    163. Construction ShipCon ship
    164. Dragon's TeethDragon's Teeth
    165. Wind
    166. Dragon's TeethDragon's Teeth ×2
    167. EllysawFrigate
    168. Wind
    169. Dragon's TeethDragon's Teeth ×2
    170. Wind
    171. Dragon's TeethDragon's Teeth
    172. RiptideFrigate
    173. Dragon's TeethDragon's Teeth
    174. Advanced ShipyardAdvanced Shipyarddone 14:27
    175. Dragon's TeethDragon's Teeth ×2
    176. HerringMissile corvette
    177. Dragon's TeethDragon's Teeth
    178. Mex
    179. Advanced Construction SubAdvanced Construction Sub
    180. Advanced Metal ExtractorT2 mex
    181. Energy storage
    182. Converter
    183. PathfinderPathfinder
    184. EllysawFrigate
    185. Converter
    186. PhantasmRadar jammer ship
    187. Naval Construction Turret
    188. Naval Advanced Metal ExtractorNaval Advanced Metal Extractornot finished by 15:00
    189. Energy storage
    190. Converter

Counts are medians over the build's games: half of them build more, half fewer. The example game is FrugalResources's (30 OS, 15/10/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:42 · in 73% of games

You get

  • Finch1 Finch from Airfirst at 1:52 · in 81% 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

2279 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039800
2:0092900
3:00156000
4:002865051
5:00406714652
6:005416440231
7:006893905526
8:0085771530891
9:001043024351321
10:001255434711984
11:001508846402761
12:001807160153621
13:002131572124345
14:002484384805186
15:002875597316200
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

FrugalResources

30.4 OS · 15/10/2026

Open source match ↗

3 received units · includes a constructor
978 metal received · 15922 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:07–1:25 · n=2252
Shipyard3:19Middle 50%: 3:02–3:37 · n=2270
Orca4:18Middle 50%: 3:52–4:59 · n=1540
Riptide4:40Middle 50%: 4:09–5:21 · n=2219
Oppressor5:55Middle 50%: 5:13–6:43 · n=2098
Geothermal Powerplant8:07Middle 50%: 7:10–9:24 · n=1537
Advanced Metal Extractor9:24Middle 50%: 8:46–10:21 · n=1995

Played most by

SHOGVN227games of this buildElpoloow178games of this buildsirniho124games of this buildOptimusprimenutt92games of this buildhihimik79games of this build
Standard geo sea · Cortex Geo sea build order · BAR Build Atlas