I've been playing System Shock 2, the original version i got from GOG (it took a bit to make the controls work but it works fine, though i found a weird bug with non-Steam games in that if you rename the game it loses the control settings - e.g. i set up the controls when the icon was named "SS2.exe" but when i renamed it to "System Shock 2" later it lost the settings until i renamed it back to "SS2.exe" :-P).
I also played a bit of Stranger of Sword City, a turn-based and grid-based blobber. I find the deck works fine with such games.
Also both games play just fine at ~5Watt settings (i like to optimize the settings per-game to get more battery life out of the system).
I remember when those were considered cool at the time and i modded my PC case to replace the dull green LED with a bright blue one.
It lasted for only a few days before i added some tape in front of it (and it lasted so long because i was trying to convince myself it wasn't annoying) :-P