Use this guide to understand how compression works, but consider supporting developers when possible. If budget is a zero barrier, look into free open-source alternatives like Goal! or Hattrick (web-based).
Many "highly compressed" versions are not the full game. Repackers often remove certain language packs (keeping only English), commentary files for languages other than the primary one, and sometimes even the soundtrack or cinematic intro videos. Fifa 14 Highly Compressed 200mb Pc
When a ripper compresses a 6GB game down to 200MB, you things. Before you download, understand the compromises: Use this guide to understand how compression works,