Overhaul Games on Thursday revealed more plans for its resurrection of the classic computer role playing game Baldur’s Gate. Its version, Baldur’s Gate Enhanced Edition, is coming to OS X, iOS and Windows in September.

Baldur’s Gate is a turn-based computer role-playing game originally developed in the late 90s by BioWare, which went on to develop the Dragon Age and Mass Effect game series. Baldur’s Gate follows Advanced Dungeons & Dragons rules, which won it high praise from RPG enthusiasts. It’s set in the “Forgotten Realms,” a campaign setting for Dungeons & Dragons.

Baldur’s Gate Enhanced Edition isn’t the exact same game you may have played before, when MacPlay released it for Mac OS more than a decade ago. The game features a new adventure called “The Black Pits,” which Overhaul says adds another six hours of gameplay. New non-playable characters to add to your party, including a monk and and a mage, enhanced interface, multiplayer improvements, the ability to use class kits, new cinematics and more.

Mac users will get the full Baldur’s Gate Enhanced Edition experience upon release, but Overhaul is releasing the iOS version with unlockable content – specifically, the monk and mage NPCs, and new player voice sets and player portraits. Overhaul founder Trent Oster explained that this keeps the price of the iPad version low for the initial game, but puts it on par with the Mac and Windows releases with all content unlocked.