I experimented with writing a whole bunch of 2 sentence games, and this is what happened.
Here's a sneak peak:
#20. Shadow-tag is to be played in an open field when the sun isn't directly overhead. Whoever is It must get their shadow to tag someone else's shadow.
Play them if you want. Morph them if you want.
I want you to make your own 2 sentence games! It's a good exercise of creativity :).