For people who only wishes to play Baldur's Gate II (GOG):
1. Install Baldur's Gate II
2. Download
Baldur's Gate II Fixpack (Download links are on the left side) and extract it to your Baldur's Gate II directory.
3. Run the newly extracted setup-bg2fixpack.exe (if not automatically started).
4. It is safe to select yes for all the optional fixes, but if you want to learn about each in detail, consult the readme file that comes with the fixpack.
5. OPTIONAL: Download and install
BG 2 Unfinished Business. This mod restores things that were previously cut from the released product, so while you don't need it, and it does add new content, it's pretty nice to have, especially if this is not your first time playing.
6. Download the
widescreen mod and apply it in the same manner as the fixpack. This makes it possible to play the game in high resolutions and in widescreen format.
7. OPTIONAL: Download foreign language packs: and copy the files to the game folder:
*
Translation patch for German (including Throne of Bhaal, default installation)
*
Translation patch for German (WITHOUT Throne of Bhaal)
8. OPTIONAL: Download and install any user-created material (banter packs, expansion mods, new NPCs, etc.).
9. OPTIONAL: (for more experienced users) Download
Baldur's Gate II Tweak Pack and apply it in the same way as the fixpack. Consult the readme file for details of each tweak - too many to list here. If you don't know what a tweak does even after consulting the readme, just skip it.
Enjoy!