What Alive 4-ever was
Alive 4-ever was released for iOS on 26 August 2009 by Meridian Digital Entertainment, a studio based in Hong Kong. It is a top-down survival shooter: the player controls one of the last survivors of a worldwide zombie outbreak, moving and aiming independently in the twin-stick manner that the touchscreen had only just made viable. Objectives go beyond simply staying alive, and include clearing a set number of attackers, and finding survivors and escorting them to an extraction point.
Contemporary reviewers reached for the same comparison almost without exception, describing it as Left 4 Dead for the iPhone. That was generous about the scope and accurate about the intent. The game arrived in the App Store's first full year, when the question of whether a phone could carry a real action game was still genuinely open, and it was one of the titles that answered yes. It was successful enough to produce a sequel, Alive 4-ever RETURNS, the following year.
Two things make it awkward to research now. The App Store keeps no public archive of delisted titles, so the original storefront page is simply gone; and the two games have very similar names, so a great deal of writing about one is filed under the other. The sources below are separated on that basis, and the distinction is noted wherever it matters.