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Geo / Cortex / Economy first / OBSERVED BUILD

Standard geo

Cortex Geo build order · Supreme Isthmus

The role's standard eco-first play: Bot Lab then Geothermal into Advanced Metal Extractor and Advanced Geothermal, commander usually blown for T2, into Advanced Bot Lab and Sheldon bot artillery to front.

Usually blows up the commander for T2 (67%)

#eco #t2 #artillery · 152 distinct matches · 46 players · 35% of Cortex Geo games · team won 47% of 153 · Recently observed

THE CATCH, AND WHAT COMES WITH IT
  • SheldonSheldon in 43%20% of all Geo games by then

Then transitions into Sheldon (22% of army), Sumo (9% of army).

HOW TO PLAY IT

Key timing: T2 constructor by 5:01

  1. Take 3 mex, then chain wind and a bot lab by 1:13.
  2. Get geothermal up for the energy to push tech.
  3. Hit T2 constructor and start advanced mex and advanced geo.
  4. Bring up the T2 lab and start pumping Sheldon to front.
  5. Pay allies with cons and rez bots while supplying Sheldon and Arbiter.

Phase by phase

TYPICAL OF ITS 152 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 ~1:13, middle half 0:57–1:21

    By 0:57 in all: 3 mex · 3 wind

    The example game in this phase · 3 steps
    1. Mex ×2
    2. Wind ×4
    3. Bot LabBot Labdone 0:58 · typical 1:13
  2. 2

    Bot Lab to 5:00

    Economy
    • Metal Extractor1Mex
    • Wind Turbine3Wind
    • Energy Converter8Converter
    • Energy Storage1Energy storage
    Order
    1. Geothermal PowerplantGeo after 4 mex, 6 wind, 1 energy storage
    Builders
    • Construction Turret5 Con turret
    • Graverobber4 Graverobber
    • Construction Bot2 Con bot
    • Construction Bot1 Con bot for allies
    • Graverobber1 Graverobber for allies

    By 5:00 in all: 4 mex · 7 wind · 1 geo · 8 converter · 1 energy storage · 5 con turret

    The example game in this phase · 21 steps
    1. GraverobberGraverobber
    2. Wind
    3. Construction BotCon botfor Beach sea
    4. Construction BotCon bot
    5. Wind
    6. Construction BotCon botfor Beach sea
    7. Mex
    8. GraverobberGraverobber
    9. GruntGrunt
    10. Mex
    11. GraverobberGraverobber ×2for Front
    12. GraverobberGraverobber
    13. Mex
    14. Mexfor Beach sea
    15. Geothermal PowerplantGeodone 3:16 · typical 3:21
    16. Mexfor Beach sea
    17. Con turret ×6
    18. Converter ×3
    19. Metal storage
    20. Mexfor Front
    21. Converter
  3. 3

    5:00 to Advanced Bot Lab

    Economy
    • Wind Turbine2Wind
    • Energy Converter2Converter
    Order
    1. Advanced Geothermal PowerplantAdvanced Geothermal Powerplant after 9 wind, 12 converter, 6 con turretin 64% of games
    2. Advanced Bot LabAdvanced Bot Lab after 12 wind, 14 converter, 7 con turretdone ~7:51, middle half 7:28–8:25
    Builders
    • Construction Turret1 Con turret

    By 7:16 in all: 4 mex · 11 wind · 1 geo · 1 Advanced Geothermal Powerplant · 12 converter · 1 energy storage

    The example game in this phase · 10 steps
    1. Converter
    2. Advanced Metal ExtractorT2 mexdone 5:24 · typical 5:37
    3. Converter
    4. Advanced Metal ExtractorT2 mex
    5. Advanced Geothermal PowerplantAdvanced Geothermal Powerplantdone 6:44 · typical 7:08
    6. Bot LabBot Labdone 5:41
    7. GruntGrunt ×4for Front
    8. GruntGrunt
    9. Advanced Metal ExtractorT2 mexfor Tech
    10. Advanced Bot LabAdvanced Bot Labdone 7:56 · typical 7:51
  4. 4

    Advanced Bot Lab to 10:00

    Economy
    • Energy Converter3Converter

    Some games also: Sheldon (47%) · radar bot (46%) · T2 con bot for allies (46%) · jammer bot (44%) · con turret (42%)

    By 10:00 in all: 4 mex · 15 wind · 1 geo · 1 Advanced Geothermal Powerplant · 18 converter · 1 energy storage

    The example game in this phase · 23 steps
    1. Advanced Metal ExtractorT2 mexfor Tech
    2. Con turret
    3. Converter ×3
    4. Advanced Construction BotT2 con botfor Suicide front
    5. Converter ×2
    6. Advanced Construction BotT2 con botfor Beach sea
    7. Converter
    8. SheldonSheldonfor Frontdone 8:26 · typical 8:43
    9. Converter
    10. SheldonSheldonfor Front
    11. Converter
    12. SheldonSheldonfor Front
    13. Converter
    14. SheldonSheldonfor Front
    15. Converter
    16. SheldonSheldonfor Front
    17. AugurRadar botfor Front
    18. DeceiverJammer botfor Front
    19. SheldonSheldonfor Front
    20. SheldonSheldon
    21. ManticoreManticoredone 9:24
    22. SAMSAM
    23. PawnPawn

Counts are medians over the build's games: half of them build more, half fewer. The example game is [FFS]WatchBehind's (38 OS, 09/08/2026); pick another.

Team trades

IN AT LEAST 30% OF ITS GAMES

You hand over

  • Graverobber1 Graverobber to Beach sea or Frontfirst at 2:25 · in 76% of games
  • Construction Bot1 Con bot to Beach sea or Pondfirst at 2:44 · in 86% of games
  • Advanced Construction Bot1 T2 con bot to Suicide front or Frontfirst at 8:28 · in 53% of games

You get

  • Advanced Construction Bot1 T2 con bot from Techfirst at 4:51 · in 92% of games

How it plays out

Typical game of this build, running totals by minute

Metal produced

020k40k
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

153 games.

Show as table
ByMetal produced: This buildEnemy metal destroyed: This buildOwn metal lost: This build
1:0033700
2:0086800
3:00150000
4:00266200
5:00375600
6:00569200
7:00796900
8:001104400
9:001407343120
10:0016930375259
11:00198531255720
12:002268924991642
13:002560543652640
14:002849759294359
15:003174777486280
WHAT THE NUMBERS SAY

Standard geo won under half its games while destroying far more metal than it lost by 15:00, showing the T2 push pays off when it lands.

  • + Enemy metal destroyed hits 7969 by 15:00 versus only 6290 lost.
  • + Advanced geothermal reached in 67% of games, funding a fast T2 lab.
  • − Team win rate sits at only 45%, below an even split.
  • − First Sheldon only appears by 9:06 in 31% of games, so T2 units often arrive late.
THE EXAMPLE YOU ARE READING

[FFS]WatchBehind

37.9 OS · 09/08/2026

Open source match ↗

1 received units · includes a constructor
614 metal received · 12351 energy received

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

Typical milestones

Bot Lab1:13Middle 50%: 0:57–1:21 · n=153
Geothermal Powerplant3:21Middle 50%: 3:07–3:37 · n=153
Advanced Metal Extractor5:37Middle 50%: 5:18–5:58 · n=139
Advanced Geothermal Powerplant7:08Middle 50%: 6:44–7:34 · n=103
Advanced Bot Lab7:51Middle 50%: 7:28–8:25 · n=113
Sheldon8:43Middle 50%: 8:05–9:20 · n=91

Played most by

_Hawkey_13games of this buildRogShotz12games of this buildzeus_on_god12games of this buildAmrissa9games of this buildGodmother139games of this build