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 play: bot lab then shipyard in the cove, quick frigate/submarine/destroyer navy to contest sea and hold the coast, transitioning into whatever the sea fight needs.

Usually shipyard in the cove (98%)

#naval #eco · 976 distinct matches · 100 players · 83% of Cortex Geo sea games · team won 52% of 1095 · Recently observed

HOW TO PLAY IT

Key timing: Shipyard by 3:18

  1. Open 3 mex, wind and solar, then Bot Lab.
  2. Get a BP and costal torpedo launcher up before the Shipyard.
  3. Put up Shipyard once you can defend it.
  4. Push out "submarine" and "frigate" to contest the sea.
  5. Add geothermal to fund the fleet transition into "destroyer", "missile corvette".

Phase by phase

TYPICAL OF ITS 976 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
    Order
    1. Bot LabBot Lab after 3 mex, 3 winddone ~1:12, middle half 1:06–1:26

    Some games also: wind for allies (49%)

    By 0:55 in all: 3 mex · 3 wind

    The example game in this phase · 4 steps
    1. Mex ×3
    2. Wind ×2for Air
    3. Wind
    4. 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, 5 wind, 1 energy storagedone ~3:17, middle half 3:02–3:33
    Builders
    • Construction Bot3 Con bot
    • Graverobber2 Graverobber
    Army
    • Grunt1 Grunt

    Some games also: con turret (46%) · trasher (39%) · energy storage (34%) · wind for allies (32%)

    By 2:51 in all: 4 mex · 5 wind

    The example game in this phase · 10 steps
    1. Wind
    2. GraverobberGraverobber
    3. Wind
    4. GraverobberGraverobber
    5. Construction BotCon bot
    6. TrasherTrasher
    7. Construction BotCon bot ×4
    8. Mex
    9. Construction BotCon bot
    10. ShipyardShipyarddone 2:59 · typical 3:17
  3. 3

    Shipyard to 5:00

    Economy
    • Metal Extractor4Mex
    Builders
    • Construction Ship1 Con ship
    Army
    • Riptide2 Frigate
    • Orca1 Submarine
    Other
    • Radar Tower1 Radar Tower

    Some games also: Guard (49%) · wind (48%) · missile corvette (48%) · destroyer (46%) · gunboat (40%)

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

    The example game in this phase · 13 steps
    1. GruntGrunt
    2. Mex
    3. OrcaSubmarinedone 3:34 · typical 4:19
    4. Mex
    5. Construction ShipCon ship
    6. ThistleThistle
    7. RiptideFrigatedone 3:56 · typical 4:35
    8. Mex
    9. OppressorDestroyerdone 5:00 · typical 5:52
    10. Mex
    11. Radar TowerRadar Tower
    12. Mex
    13. Geothermal PowerplantGeodone 6:17 · typical 7:59
  4. 4

    5:00 to 10:00

    Economy
    • Metal Extractor2Mex
    • Wind Turbine8Wind
    • Energy Converter1Converter
    Builders
    • Construction Turret1 Con turret
    • Death Cavalry2 Death Cavalry
    • Construction Ship1 Con ship
    Army
    • Guard2 Guard
    • Riptide5 Frigate
    • Oppressor2 Destroyer
    Other
    • Naval Radar / Sonar Tower2 Naval Radar / Sonar Tower

    Some games also: geo (47%) · Thistle (40%) · submarine (34%)

    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 · 232 steps
    1. Mex
    2. HerringMissile corvette
    3. GuardGuard ×2
    4. OrcaSubmarine
    5. GuardGuard
    6. Construction ShipCon ship
    7. Mex
    8. RiptideFrigate
    9. GuardGuard
    10. OppressorDestroyer
    11. Mex
    12. GuardGuard
    13. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    14. Advanced Metal ExtractorT2 mexdone 7:33
    15. Con turret
    16. HerringMissile corvette
    17. Radar TowerRadar Tower
    18. RiptideFrigate
    19. Construction ShipCon ship
    20. Con turret
    21. Advanced Metal ExtractorT2 mex
    22. Construction ShipCon ship
    23. Con turret
    24. Construction ShipCon ship ×2
    25. Wind
    26. Advanced Metal ExtractorT2 mex
    27. GuardGuard
    28. Construction ShipCon ship
    29. Wind
    30. GuardGuard
    31. Wind
    32. Construction ShipCon ship
    33. Naval Construction Turret
    34. Mex
    35. Bot LabBot Labdone 8:56
    36. Naval Construction Turret
    37. GuardGuard
    38. Tidal ×2
    39. Naval Energy Converter
    40. Tidal
    41. Advanced Metal ExtractorT2 mex
    42. Naval Energy Converter
    43. Tidal ×4
    44. Naval Energy Converter
    45. Mex
    46. Dragon's TeethDragon's Teeth
    47. Tidal
    48. Wind
    49. Dragon's TeethDragon's Teeth
    50. GruntGrunt
    51. Tidal ×2
    52. Dragon's TeethDragon's Teeth ×2
    53. Naval Energy Converter
    54. Dragon's TeethDragon's Teeth ×4
    55. Wind
    56. GruntGrunt
    57. Dragon's TeethDragon's Teeth
    58. Tidal
    59. Wind
    60. Naval Energy Converter
    61. GruntGrunt
    62. Wind
    63. GruntGrunt
    64. Wind
    65. Tidal
    66. GruntGrunt
    67. Wind
    68. Mex
    69. GruntGrunt
    70. Naval Energy Converter
    71. Wind
    72. Tidal
    73. GruntGrunt
    74. Wind
    75. GruntGrunt
    76. Wind
    77. GruntGrunt
    78. Tidal
    79. Naval Energy Converter
    80. Wind
    81. GruntGrunt
    82. Tidal
    83. Wind
    84. GruntGrunt
    85. Wind
    86. GruntGrunt
    87. Naval Energy Converter
    88. Advanced Metal ExtractorT2 mex
    89. GruntGrunt
    90. Wind
    91. GruntGrunt
    92. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    93. Advanced ShipyardAdvanced Shipyarddone 10:44
    94. GruntGrunt
    95. Wind
    96. Tidal
    97. Naval Energy Converter
    98. Con turret
    99. Naval Energy Converter
    100. SlingshotSlingshot
    101. Tidal
    102. Wind
    103. Naval Energy Converter
    104. Mex
    105. Advanced Metal ExtractorT2 mex
    106. Tidal
    107. Naval Energy Converter
    108. GuardGuard
    109. SlingshotSlingshot
    110. Tidal
    111. GuardGuard
    112. Tidal ×2
    113. Dragon's TeethDragon's Teeth ×3
    114. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    115. UrchinUrchin
    116. Wind ×2
    117. Dragon's TeethDragon's Teeth
    118. Wind
    119. Advanced Construction SubAdvanced Construction Sub
    120. Wind
    121. GuardGuard
    122. Con turret
    123. Wind
    124. GruntGrunt
    125. UrchinUrchin
    126. GruntGrunt
    127. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 14:21
    128. Con turret
    129. Wind ×2
    130. GruntGrunt
    131. Wind
    132. GruntGrunt
    133. Wind ×2
    134. PathfinderPathfinder
    135. GruntGrunt
    136. Naval Construction Turret
    137. Wind
    138. Naval Construction Turret
    139. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    140. Wind
    141. GruntGrunt
    142. Wind
    143. PathfinderPathfinder
    144. GruntGrunt
    145. Wind
    146. Naval Construction Turret
    147. Naval Advanced Metal ExtractorNaval Advanced Metal Extractordone 12:39
    148. GruntGrunt
    149. Con turret
    150. Naval Construction Turret
    151. GruntGrunt
    152. Wind
    153. GruntGrunt
    154. PathfinderPathfinder
    155. Wind
    156. GruntGrunt ×2
    157. Wind
    158. PathfinderPathfinder
    159. GruntGrunt
    160. Wind
    161. GruntGrunt
    162. Wind
    163. PathfinderPathfinder
    164. Wind
    165. UrchinUrchin
    166. GruntGrunt
    167. Wind
    168. GruntGrunt
    169. Wind
    170. GruntGrunt ×2
    171. Wind ×2
    172. GruntGrunt
    173. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    174. Wind
    175. GruntGrunt
    176. Wind
    177. GruntGrunt ×3
    178. Wind
    179. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    180. GruntGrunt ×2
    181. Wind
    182. GruntGrunt ×2
    183. Naval Energy Converter
    184. GruntGrunt
    185. Wind
    186. GruntGrunt ×4
    187. Wind
    188. GruntGrunt ×2
    189. Naval Energy Converter
    190. Wind
    191. GruntGrunt
    192. Wind
    193. Energy storage
    194. Bot LabBot Labdone 13:26
    195. Con turret ×2
    196. Wind
    197. Naval Energy Converter
    198. Wind ×3
    199. Naval Energy Converter
    200. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    201. Wind
    202. Advanced Metal ExtractorT2 mex
    203. Wind
    204. Advanced Metal ExtractorT2 mex
    205. Naval Energy Converter
    206. Wind ×2
    207. Naval Energy Converter
    208. Wind ×2
    209. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    210. Wind
    211. BrimstoneAnti-swarm shipdone 14:07
    212. Wind
    213. Naval Energy Converter
    214. Wind
    215. BrimstoneAnti-swarm ship
    216. Wind
    217. BrimstoneAnti-swarm ship
    218. Wind ×2
    219. CyclopsCyclops
    220. Wind
    221. Naval Advanced Metal ExtractorNaval Advanced Metal Extractor
    222. Wind ×2
    223. Fusion ReactorFusionnot finished by 15:00
    224. Wind
    225. Twin GuardTwin Guard
    226. Naval Radar / Sonar TowerNaval Radar / Sonar Tower
    227. BrimstoneAnti-swarm ship
    228. Death CavalryDeath Cavalry
    229. Wind
    230. BrimstoneAnti-swarm ship
    231. Death CavalryDeath Cavalry
    232. Wind

Counts are medians over the build's games: half of them build more, half fewer. The example game is tedsterr's (45 OS, 20/09/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Wind Turbine2 Wind to Airfirst at 1:48 · in 72% of games

You get

  • Finch1 Finch from Airfirst at 1:51 · in 83% of games
  • Hercules1 Light transport from Airfirst at 2:00 · in 75% of games
  • Advanced Construction Bot1 T2 con bot from Techfirst at 7:44 · in 89% 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

1095 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0039700
2:0092800
3:00156700
4:002900051
5:00410813052
6:005463440241
7:006945930551
8:0086091570904
9:001049124521351
10:001261236252061
11:001521948812901
12:001812163983761
13:002141473934451
14:002501686485371
15:002879197536300
WHAT THE NUMBERS SAY

Standard Cortex geo sea sits at an even 50% win rate, trading a slower start for a big resource lead by 15:00.

  • + Metal produced hits 28451 by 15:00, well above both front roles
  • + Own metal lost stays far below enemy metal destroyed at every checkpoint
  • − Only 50% team win rate, the lowest of these six builds
  • − T2 factory only completes in 40% of games by 12:53
THE EXAMPLE YOU ARE READING

tedsterr

45.5 OS · 20/09/2026

Open source match ↗

3 received units · includes a constructor
65 metal received · 84084 energy received

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

Typical milestones

Bot Lab1:12Middle 50%: 1:06–1:26 · n=1084
Shipyard3:17Middle 50%: 3:02–3:33 · n=1089
Orca4:19Middle 50%: 3:54–5:00 · n=754
Riptide4:35Middle 50%: 4:08–5:20 · n=1063
Oppressor5:52Middle 50%: 5:08–6:35 · n=991
Geothermal Powerplant7:59Middle 50%: 7:01–9:00 · n=654
Advanced Metal Extractor9:22Middle 50%: 8:45–10:10 · n=940

Played most by

sirniho122games of this buildSHOGVN92games of this buildOptimusprimenutt84games of this buildPRO_Rerory47games of this buildhihimik41games of this build