Action/RPG... on autopilot.
This is a game where you literally started from scratch. You had no set traits, no set skills. You play the game as you want to. Want to be a ranged combatant? Use those ranged weapons. Like getting up close and personal in the fights? Use those melee weapons. The game was based on useage of weapons to determine what you became as you progressed, leaving the freedom entirely up the user themselves.
This added for a great mixture of strategy as you could make a character into whatever you wished them to, so long as you focused on those specific traits.
Combat wise, it is your typical dungeon style romp, be it above ground or below. The funniest part I had in playing this game is I could literally set my characters on autopilot and they would do all the work for me. If a particially large hoard of monsters was in my way, I could send my characters off into them, go grab a bite to eat, and come back to watch the remainder of the battle.
For some this was a turn off, but for others (like myself) many enjoyed this aspect. Not having to babysit and micromanage characters was a godsend at times.
Another great aspect to this game is that if you wanted, you could take your characters online and continue the battle there, with other players, thus expanding the fun factor.