LinuxTechi - https://www.linuxtechi.com/install-supertux-2-game-kids-ubuntu-16-04-debian-9-linux-mint-18-03/
SuperTux 2 is an exciting 2D jump and run game that is pretty much similar to the ever popular series of Super Mario Games. It is a free and open-source linux game that was originally conceived and developed by Bill Kendrick and currently being handled by the SuperTux Development Team. In the Super Tux 2 game, you play as Tux the Penguin that takes on a dangerous journey through thick and dense forests and collecting coins and power ups on the way and also fighting with all kinds of enemies. Simply stay alive and advance through each level.