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In just over 10 years mobile gaming has gone from Snake II on a Nokia 3310 to a multi-billion dollar industry, but what makes a handset or tablet-based game great? What problems can hinder the experience? Usability experts SimpleUsability found out.
In just over 10 years mobile gaming has gone from Snake II on a Nokia 3310 to a multi-billion dollar industry for mobile phones and tablets.
More people than ever are playing mobile games thanks to the rise of cultural phenomena like Angry Birds which, at over 20 million downloads, became the best-selling app of all time.
But what makes a handset or tablet-based game great? What problems can hinder the experience? Usability experts SimpleUsability look at the top ten features in mobile games.
This article is also avalable as a PDF for download: Moble Gaming Usability Study 2012.pdf
1-tiny-wings
Mobiles and tablets present fewer buttons and control options than ergonomic console controllers, meaning mobile game developers need to innovate. Those that have done it successfully have done so by amalgamating intuitive controls with simplicity. Popular games, such as Tiny Wings, require only a single input, pressing and holding the screen to speed up the descent and releasing when travelling uphill.
3-gta3
4-age-of-zombies
Playing the game Age of Zombies for example requires using the two on-screen ‘virtual joysticks’ with your thumbs. This obscures so much of the screen that it makes the game difficult to play.
It is an issue too for tablets, even with their greater field of vision and higher graphic fidelity. Playing the same game on a tablet, the joysticks become hard to use with any degree of accuracy as they are more spaced out than on the mobile phone equivalent.
Another issue with having a larger screen to play the same games is that the Heads-Up Display (HUD) is relegated to the user’s peripheral vision. The smaller screen of a mobile phone means it is always in the user’s eye line, whereas with a tablet screen they will often have to break their focus on the action and look to the edges for important game information.
7-infinity-blade
Infinity Blade, for example, highlights the on screen buttons when the user presses them and displays correlating text on the screen. These immediately inform as to whether attacks or blocks have been successful or not. Similarly, when inflicting or receiving damage, the number of points lost flashes on screen and registers with the health bars, which remove the respective amounts.
8-monopoly
To work however, they must be clear and unequivocally relate to the function: a dollar sign for money, a spanner for tools. When unfamiliar, abstract or ambiguous icons are used they can have the opposite affect with users failing to grasp what they represent.
9-peggle
If when restarted the game has not paused or automatically saved the user’s state of play, a negative opinion of the game is formed. Users will be less inclined to play the game in future for fear that another phone call will disrupt their game and lose their progress.
As the majority of people play games on mobile devices while on the move and in short bursts, a clear pause button (Angry Birds) is always advisable so that users can be confident that they can quickly suspend and return to the game.
12-jetpack-joy
In Jetpack Joyride the start screen displays the command ‘Touch anywhere to play!’ beneath the game title. Upon tapping the screen the game title and command disappear and the game begins instantly.
14-landa-a-panda
Mobile games are often played by users who simultaneously listen to music through their device at the same time. Many games do not recognise dual usage and will play in-game music and sound effects over the user’s personal music. This requires users to search for a manual way of muting the game volume, which can be frustrating.
tutorial
Unlike PC and console games, which come with a manual explaining the controls and basic game play, mobile games lack a physical guide. Simple tutorials that demonstrate what each input does and how to play the game must feature at the start of the game.
Tutorials should be easy-to-understand and stylish. This style should remain consistent and pop-up when new mechanics are introduced in later stages. The opening levels should also start simply and allow rapid progression to create ‘buy-in’ among users.
tiny-wings-objectives
Without a defined aim or objective, whether story driven or high score, users will lose interest in the game and move on. It is also important to keep users invested in a game by offering them rewards for meeting in-game goals. A new level or item not only rewards players for the actions they have just performed, but also incentivises them to continue playing the game with the promise of further unlockables.
multiplayer
Players also receive notification via a prompt on their handset, making mobile the ideal format for these more episodic games. Providing leader boards and in-game rankings is also a good way to challenge others without the need for concurrent presence in the game. Whether displaying high scores, as in Doodle Jump, or showing the ghost data of an opponent’s lap time in Sprint Racers GP, successful multiplayer options no longer means that all players have to be connected at the same time.
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