Package: steam Version: 1.0.0.50-6 Severity: normal this fix from the steam forums worked out for me:
http://steamcommunity.com/app/353370/discussions/0/490123197945710268/#c490123197945767207 -- System Information: Debian Release: stretch/sid APT prefers testing APT policy: (990, 'testing'), (500, 'stable-updates'), (500, 'unstable'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 4.2.0-1-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.utf8, LC_CTYPE=en_GB.utf8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) Versions of packages steam depends on: ii debconf [debconf-2.0] 1.5.57 ii libc6 2.19-22 ii libgl1-mesa-dri 10.6.8-1 ii libgl1-mesa-glx 10.6.8-1 ii libstdc++6 5.2.1-22 ii libtxc-dxtn-s2tc0 [libtxc-dxtn0] 0~git20131104-1.1 ii libudev1 227-2 ii libx11-6 2:1.6.3-1 ii libxinerama1 2:1.1.3-1+b1 ii xz-utils 5.1.1alpha+20120614-2.1 Versions of packages steam recommends: ii fonts-liberation 1.07.4-1 ii gnome-terminal [x-terminal-emulator] 3.18.0-1 ii konsole [x-terminal-emulator] 4:15.08.1-1 ii lxterminal [x-terminal-emulator] 0.2.0-1 ii terminator [x-terminal-emulator] 0.97-4 ii xfce4-terminal [x-terminal-emulator] 0.6.3-2 ii xterm [x-terminal-emulator] 320-1 ii zenity 3.18.0-1 steam suggests no packages. -- debconf information: * steam/question: I AGREE steam/purge: * steam/license: -- debsums errors found: debsums: package steam is not installed