Greenbak

I think you were asking for PPC games because you may not be able to access PC based games while in the shelter...

In that case, here is a list of the games I keep on my x50v:

CE Zebra 1.0 (Othello) - can be 1 or 2 player.

http://www.pocketpcfreewares.com/en/index.php?soft=392

PacMAN by Namco

http://www.pocketpcfreewares.com/en/index.php?soft=1339

Tetris 1.0 - Ramon de Klein version

http://www.pocketpcfreewares.com/en/index.php?soft=246

Tic-Tac-Toe - cool graphics - my 6 yr old son likes it.

http://www.gameenergy.com

Jawbreaker - try shifter or megashift option for longer games
Stuntcar Extreme
Both came with my x50v, hopefully on yours too.

Notice most are from pocketpcfreewares.com. It is a great source for free downloads.

My best wishes go out to your and yours.