App Store is bloated with apps today. In total, there are more than 2 millions apps in the App Store with 25% of it, coming from games alone. From these numbers, I can safely say that most of them are casual gamers. This opinion is supported by the statistics that's coming from Localize Direct.
From this statistics, Puzzle and Arcade are the top two genres that dominating the App Store. It means that game developers are more interested to create games that appealing to more audience. Not just making a game that only targeting hardcore gamers. They want to build games that suitable for any age and can be played in most situation, especially during boring meeting.
Speaking of which, to target casual gamers, developers are tend to create games with portrait view to facilitate the needs of commute casual gamers, playing game with just one hand. Something that's impossible to do when you have a game with landscape mode. Portrait mode game, however, isn't easy to design. Because in terms of UX, it lacks the width that's usually used to give more roomy feeling.
This lack of roomy feeling however, isn't something that can be found in Alex Kupstov from Fireflame Games latest game. Fireflame Games is renown for the classic fantastic match-3 RPG game, Dungeon Raid. After several years inactive from updating his famous game, Alex has come back alive and strong with a Roguelike/Puzzle/Board Game called I Keep Having This Dream.