Before you hunt for that download link, ensure your rig can handle the journey down the rabbit hole: Windows XP/Vista/7/10/11 Processor: 2.0 GHz Intel Pentium 4 or equivalent RAM: 1 GB (2 GB recommended for "extra quality" settings)
Run any .exe or .zip file through updated antivirus software.
Stick to well-known community archives or "old game" repositories.