To play with AI (Artificial Intelligence), you need a special "AI Map." Look for files named DotA v6.83d AI.w3x . Standard maps do not have bots.
Here is the most reliable method to get the classic experience running on Windows 10 or Windows 11. Dota 1 Warcraft 3 Download
For those seeking the authentic 2008-2011 experience, the path is more complicated. To play with AI (Artificial Intelligence), you need