it works perfectly after the symlink fix, but be aware that doing so you might bork other games (it happened to me). So I suggest you remove the links after the game closes. This can be easily done by adding the code below to the game launch options (pay attention to the names of the libs and their path and change it accordingly to your case, since I can almost guarantee it will be different if you use a different distro than mine): ln -s /usr/lib64/libgnutls.so.30.14.11 ~/.local/share/Steam/ubuntu12_32/steam-runtime/pinned_libs_64/libgnutls.so.26 && ln -s /usr/lib/libgnutls.so.30.14.11 ~/.local/share/Steam/ubuntu12_32/steam-runtime/pinned_libs_32/libgnutls.so.26 && %command%; rm ~/.local/share/Steam/ubuntu12_32/steam-runtime/pinned_libs_64/libgnutls.so.26 ; rm ~/.local/share/Steam/ubuntu12_32/steam-runtime/pinned_libs_32/libgnutls.so.26 &