Deus Ex: Invisible War
  
Xbox
  






This is how to get the four alternate endings in the game: 





The Templar Flood Ending:


Upload Aquinas Spec to the Templars. 


Use the machine at the statue's base.


Kill JC and Paul Denton, but keep Saman alive.





Illuminati Age of Light Ending:


Upload Aquinas Spec to the Illuminati. 


Destroy the machine at the statue's base.


Kill JC and Paul Denton, but keep Chad or Nicolette alive.





Omar Invasion Ending:


Do not upload Aquinas Spec.


Destroy the machine at the statue's base.


Kill every faction leader.





ApostleCorp Great Advance Ending:


Upload Aquinas Spec to JC Denton. 


Use the machine at the statue's base. 


Keep JC Denton alive.





Secret Level:


In the UNATCO Ruins, pick up the flag in the first large room you are in. Go to the room that used to be Joseph Manderly's office and search around for 
a bathroom. Stand the flag on the floor, and flush the toilet. You will be then transported to the Dev Team's Wrap Party!

Thanks to Revolution readers Dalton, Sam Maldonado, and keeperofthefayth!