This + some other quirks are what have kept me off KDE for a good while. I understand wanting to do things differently, possibly easier – but it’s hard to break old habits.

I’m a big fan of the sniper elite series, but they may be a bit newer than what you are looking for.

I’m partial to Captain Lou Albano’s mario.

Check out the Sniper Elite series. The most recent games have a good, challenging, and engaging Stealth mechanic to them.