I bought the game on steam months ago and already play for 100plus hours, and recently I heard that the new dlc comes out so i download again and find it unplayable. I tried many times and it just keep crashing cant even begin the game. I already test the integrity of the game using steam several times, and there is the sole file I could upload (it said i couldnot upload .log and .dmp files XD), i hope it would be helpful.     

output_log.txt

For other users with the same issue, I will post the resolution below

 

The most likely reason this is occurring is due to a networking program called Citrix. All other users with this problem mentioned that their Citrix receivers had recently had updates that caused some of their Unity based Steam games to no longer launch properly. Upon rolling back the updates or uninstalling Citrix, all the users were again able to play Deadfire.

 

Hope this helps all you Citrix users!