New posts in Baldurs Gate

Are party members expected to be disposable and swapped out when I feel like it or they die?

In what sequence should I play Baldur's Gate, Icewind Dale and Planescape Torment so I can transfer my character?

Once I replace a party member, can I ever get him back?

Why won't Minsc join my party?

Understanding weapon damage

Which NPCs can you keep for the longest time while playing through the trilogy?