KBlocks
Falling blocks game
KBlocks is the classic falling blocks game. The idea is to stack the falling blocks to create horizontal lines without any gaps. When a line is completed it is removed, and more space is available in the play area. When there is not enough space for blocks to fall, the game is over.
KBlocks is a single player falling blocks puzzle game, a Tetris-like replacement for KSirtet. . This package is part of the KDE games module.
How to install KBlocks in Ubuntu
If you are on a supported distro, you can install the application through software center by clicking the below link.
If the above link not working, run the below command in terminal to install kblocks in Ubuntu
sudo apt install kblocks