Cossacks 3 Out Of Memory

Several players have reported success by manually adjusting this setting:

Some users report that the game manages memory better when "tricked" into thinking it's running on an older environment. cossacks 3 out of memory

Keep only 2-3 active save files and overwrite them manually. Several players have reported success by manually adjusting

Yes. Lowering or disabling shadows and shader usage can reduce memory consumption and help delay or prevent crashes. click Settings in the Performance section.

Now that the primary causes are clear, here is a structured list of fixes, ordered from the simplest and most likely to succeed to the more technical.

Under the tab, click Settings in the Performance section.