ZZT is an ANSI character-based video game, released in 1991 by Tim Sweeney of Potomac Computer Systems (now Epic Games). ZZT itself is not an acronym for anything; its title was chosen so it would always appear at the bottom of newsgroup listings.
Permission was granted by Tim Sweeney to allow re-distribution of ZZT.
For versions of Ubuntu between 14.04 LTS (Trusty Tahr) and 15.10 (Wily Werewolf), as well as Ubuntu flavours that don’t include snap by default, snap can be installed from the Ubuntu Software Centre by searching for snapd.
Alternatively, snapd can be installed from the command line:
Either log out and back in again, or restart your system, to ensure snap’s paths are updated correctly.