The games Galaxy on Fire 2 and Need for Speed Shift have been added to the latest firmware for the Nokia N950. However, they do not come in the OTA update. To install those games, this is what needs to be done using the Terminal app:

devel-su

apt-get update

apt-get install gof2

apt-get install nfsshift

The games are fairly large (100+ MB), so using WLAN is recommended.