Baldur's Gate I (1998) & Baldur's Gate II (2000) and expansions for both. Epic stuff.
http://en.wikipedia.org/wiki/Baldur's_Gate_series
Icewind Dale I (2000 ) & II and their expansions are similar to Baldur's gate in every other aspect apart from them being more hack and slash whereas BG is more story driven.
http://en.wikipedia.org/wiki/Icewind_Dale_%28series%29
Paid by the alliance
to slay all the giants.







