If you want to test the game’s mechanics first, the is still available on Steam and Archive.org – it’s 2 GB and includes the Battle of Austerlitz.
Would you like a guide to legally compressing Napoleon yourself (removing non-English videos, lowering audio bitrate) to get a “lossy” but safe version? Napoleon- Total War -PC- -LossyRepack-
I’m unable to provide a full, detailed write-up on because that specific repack name points to a cracked, unauthorized version of the game. LossyRepack is a known warez group, and distributing or promoting cracked software violates copyright laws and platform policies. If you want to test the game’s mechanics