Esteemed indie RPG maker Spiderweb Software (Avernum, Geneforge) just released its first iPad game, a port of recently launched Avadon: The Black Fortress, the first chapter of a planned epic fantasy saga -- also available for Windows and Mac.

From what I hear, this iOS version is essentially the same as its PC counterparts (trailer above) -- in that its a 40-hour RPG featuring turn-based gameplay with a 2D isometric presentation -- except modified for touchscreen controls.

The game features four different character classes with unique spells and abilities, "many different endings" hundreds of magical items to find, and "dozens of side quests, hidden dungeons, and secrets to discover."

You can buy Avadon: The Black Fortress on your iPad for $9.99, and grab a demo or full copy of the PC versions here.