You can consider this a ‘What If?’ of Valve history. Introducing Left 4 Bioshock.
What if Turtle Rock Studios teamed up with Irrational Games? What if Elizabeth, Booker, and the Luteces found themselves time travelling from the airborne city of 18th century Columbia, for current day pandemic struck Pennsylvania?
It would seem if this were a real game, that it eschews Bioshock tropes in favor of L4D style cooperative gameplay. It would also seem we’re using the conceit that the four are immune to the Green Virus, perhaps because they are time displaced.
Seem like fun to you? Check out the rest of the gallery below, and here’s a hat tip to the source.