Comment # 16 on bug 988273 from Matthias Mail�nder

Neither

find ~/.local/share/Steam/ubuntu12_32/steam-runtime -type f -name "libcrypto*"
-print -delete

nor

find ~/.local/share/Steam/ubuntu12_32/steam-runtime -type f -name "libgpg*"
-print -delete

as suggested in https://bugs.archlinux.org/task/48994 did help on my TW system.