So I am playing an 8-player large custom map created in Campaign Editor. I am Terran, and the other AI players are random.

I, so far, did 56/72 units and have about 20 buildings. I can no longer create any new units or buildings. I get the error: "Cannot create new units."

I removed the fog of war... and I see the AI players are able to create new buildings and units.

Any idea why?

  • 1
    who made the custom map? Might be a joke of the creator.
    – A.bakker
    Dec 25, 2023 at 9:11
  • Is there a guide? How do I modify it?
    – Si8
    Dec 25, 2023 at 14:24
  • Sorry I made a edit in my question... The map is created in campaign editor. I didn't see any settings to change the units...
    – Si8
    Dec 25, 2023 at 14:27
  • Old Starcraft does have a limit to how many "units" including buildings and random animals can be on a map at a time. But seeing your enemy can still make them... that should only be possible if something else dies first.
    – A.bakker
    Dec 25, 2023 at 14:29
  • That I agree with you 100%! I am guessing I may have missed something.... Thanks for your feedback.
    – Si8
    Dec 25, 2023 at 14:33

1 Answer 1


The official error should be:

Cannot create more units.

See screenshot enter image description here

This indicates that the map has hit the "Map Max" of 1700 units, buildings, doodads, animals, and some spells. This is really hard to do on anything other than "money maps".

I assume the opponent units which you see are coming from Zerg larvae. Larvae is a unit which gets traded into a new unit instantaneously; however, new larvae should not be getting produced. Ditto for drone -> building.


  • Thank you! Is this limit for all players as a whole OR as a player? It seems I was terrans and I couldn't build anymore but other Terrans and Zergs were building....
    – Si8
    Jan 4 at 11:31
  • 1
    @Si8 It's the map limit, period. No player should be able to produce new units nor buildings unless something gets killed. It's been a number of years since I've played OG StarCraft so I do not remember if a special provision exists for CPU players. The fact that you were only at 56/72 units is really suspicious; maybe you encountered a one-off bug. Were you turtling with mass turrets? What map were you playing exactly? Were you playing OG StarCraft or remastered? Can you repeat the issue and provide a screenshot after using "black sheep wall"?
    – MonkeyZeus
    Jan 4 at 12:53
  • @Si8 Any luck reproducing the issue?
    – MonkeyZeus
    Jan 5 at 20:27
  • I haven't gotten a chance to get back in the game but I am going to try it. I did play another round where I was a Zerg and although I did get a "cannot create more units" in the beginning of the game... I was able to complete all 200 units! Although two of the races were destroyed in the beginning of the game.
    – Si8
    Jan 7 at 19:04
  • @Si8 Very strange, sounds like a poorly built map.
    – MonkeyZeus
    Jan 8 at 15:38

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