If you want to use the hack for the crosshairs :
1. Download notepad++ I prefer the zip/rar file so you don't have to install the program
2. Run it. Inside you can open a file (like you would normal notepad at the top left menu).
3. Browse your computer and select the hack (executable) file for Survarium.
4. Press CTRL F on your keyboard and when the search menu comes up, type in "29b." Everytime the program finds '29b' replace it with '29c' by typing over it.
5. Then save the file.
Now when you run Survarium you won't get the version error message and the hack says '29c' in-game. The crosshair works, but that's about all I can see.
Something else must manage the other features.