Zenonia games aside, Gamevil have another RPG title, Arel Wars, which is a free download on iPhone and iPod Touch as well. Arel Wars is an action RPG/tower defense game. You can command over 50 regular, Unique and Hero units, as well as customize skills and units.
The goal of the game is to conquer enemy towers. Gamevil say Arel Wars has 120 stages and 8 maps, as well as an online player-vs-player mode. You can watch a walkthrough video of the game above, courtesy of YouTube user, Touch Gameplay.