CHAOS In the Darkness Update v20151710
4Realms Protection: Steam
"This Update/Patch requires CHAOS.In.the.Darkness-ALiAS installed"
Whats new: do not know, only found about previously
A patch will be deployed tonight, to fix java's problem.
You have to install java 64bits (Last version, not necessarily Java 7.)
How to play until next patch
They will patch this later but here it is
Step 1: Uninstall Java 8 (If you are running Java 8)
Step 2: Install Java 7
Step 3: Go to your steam folder and run server.exe
Step 4: Run the game through steam
NOTE: "To play, first start Server.exe and set it up. Then push Run. When the server is loaded you can start the game with Chaos.exe."