I would also recommend adventure game creator with unity. It is a unity extension made by Animation director Chris Burton and it is really awesome. You can make 2d 2.5d and 3d adventure games with it really easily without doing any code. If you want to make a telltale type or heavy rain type game with direct control instead of point and click it is really good for that (although it's good for point and click games too.)

But if you make games in 3d be sure to purchase extended licenses for everything.