Khalil's_Black_Excellence
The King of Fighters
Bro 15 hours isn't even high expectations though. Fallout 3 gave you Point Lookout for the same price and added like 20 hours. Far Harbour in Fallout 4 same amount of time same price. Skyrim had Dragonborn and Dawnguard and both were like the same price with waaay more than 20 hours of content. Borderlands DLCs are all long DLCs.
5-10 hours of DLC content is trash bro.
A bunch of games that aren't really the same type of game as this one, but are mostly of similar ilk within themselves.
15 hours is a full price game in some cases. You can stretch something out until it's thin as paper or plow thru something in no time. It's all relative really. So I'd temper expectations. Could it be 15 hours or more. It's not impossible, but I'm certainly not coming in the door with the anticipation or expectation of that.