How to install supertuxkart without console or ubuntu software?

Solution 1:

Version 1.3 is available as a snap:

~$ snap find supertuxkart
Name          Version  Publisher   Notes  Summary
supertuxkart  1.3      diddledani  -      A 3D arcade racer with a variety of characters, tracks, and modes to play

You can install it with the terminal command

snap install supertuxkart

Solution 2:

Add the official ppa

sudo add-apt-repository ppa:stk/dev
sudo apt-get update

Install the program

sudo apt install supertuxkart

Resulting version

$ apt policy supertuxkart
supertuxkart:
  Installed: 1.3+build2~ubuntu20.04.1