ORIFLAMME announced the release of the Japanese version Chaos Centurions iOS game. The English version available a long time ago as free to play, Post Apocalypse RTS game.
As you can see from the video and the pictures the game is a side scrolling vide 2D game which is by the way quite popular in North America.

Above you can watch the latest promotion video of the game and you can download the English version from here: https://itunes.apple.com/us/app/id1065834036