there might be a 4 coming but it probably wont be under he same title. one reason i say this is because after the game finishes it says "the end" and then a ? mark flashes briefly.
When i tried to pause the game it said pause pending and it would not let me shoot even though the game was still playing and the enemies were still shooting at me .
 "The Grinns Tale"){kind=icon}
 "Kingdom Rush"){kind=icon}
 "Zombotron 2"){kind=icon}
 "Alice is Dead Episode 3"){kind=icon}
 "The Gun Game 2"){kind=icon}
 "Alice is Dead - Ep 1"){kind=icon}
 "FPA: Sneak Peek"){kind=icon}
 "Sierra 7"){kind=icon}
 "Collapse It"){kind=icon}