vectorORC

@fatalevalkyrie: Leslie was a former patient of ruviks and ruvik sensed the STEM would be used on him so he conditioned Leslie's mind to be weak so he could take over Leslie's body and use it to escape the details are above in my theory

This is my second time righting this so I'm summing it down. Seb is a former detective turned mental patient who is in a shutter island like rpg as a form of therapy to help with his psychological issues this explains the save room and the nurse . The secret organization thought he could be of value so they plugged him into the STEM . Kidmen and Joseph are part of the organization but kidmen understood what was needed to be done. The doctor turned on ruvik and was in the STEM to help find ruviks secrets but went crazy and wanted to escape. Leslie was a former patient of ruviks and ruvik sensing betrayel conditioned Leslie's mind to be weak so ruvik could take his body later on in the STEM . Leslie was in the STEM to help draw out ruvik but failed due to Sebs intervention . Kidmen realized all hope was lost during the mission and tried killing Leslie because Leslie was the key to escaping. Seb intervened like ruvik predicted also left this part out but ruvik was using Seb to get Leslie closer to him which of course happened. Ruvik is defeated and his brain destroyed just like he wanted. In the end Seb is still in the STEM with ruvik but this time ruvik is in Leslie's body trying to find the exit and Sebs shattered psyche is controlling the world so most likely the manifestations of his psychological trauma will try and stop him as he hunts down ruvik. Question any one also sorry for the shit spelling I wrote this in a hurry. Also I created this theory after reading other theories so please no omg you stole my idea