Games like Guild Wars: Collector's Edition

If you finished Guild Wars: Collector's Edition, the closest matches are Eiyuden Chronicle: Hundred Heroes, The Seven Deadly Sins: Origin, Aion 2, Alaloth: Champions of the Four Kingdoms and Penny Arcade's On the Rain-Slick Precipice of Darkness 3. All 7 share its adventure genre and are ranked by how closely their themes and modes overlap.