Hi.
Do you like Tetris?
Then you need to try BlockOut.
Its a 3 Dimensional Tetris that was made 1989 by Dalifornia Dreams.
https://en.wikipedia.org/wiki/Blockout
I have made a Youtube video on how to set it up for level "Out of control".
Today this DOS game can be played in a browser so just
Google: blockout online
and you can find and try some online versions.
If you want to join a global community and see where you get ranked globaly then download the program
blockout2.
http://www.blockout.net/blockout2/
There is a facebook page on the game.
https://www.facebook.com/blockout3dtetris
Regards MagI