The latest is PowerWash Simulator,
I've never been a gamer, but I can relate to the appeal. I once got hooked for a short time watching pressure washing videos on youtube. 
A few months ago I bought myself a small electric pressure washer, and it's my new favorite thing. 
Sounds cool. I might look into a smaller one when my old one gives up or pisses me off again.
I went to a small electric chainsaw years ago. Got rid of the gas one.
OMG, I love my pressure washer, but mine is old school and I have to put gas in it and maintain another lawnmower type engine.
However it is very powerful (it can whiten concrete) and if you accidentally let it go and it swipes your skin, you will have a scar from the water hitting you at Mach speed. Ask me how I know this.
Yeah, not a toy, but a very cool tool!
I was surprised how well it performed on the driveway and sidewalk. Granted, I also used chemicals and I'm certain it took much longer to do than a powerful gas model would take, but I figure it will be fairly easy to maintain if I don't let it get so bad again in the first place. 
It's not so much that I am vying for favor with Mother Nature by going Fake Greenie, getting all these electric tools, but I just do not need the kind of big power available with these gas powered machines as a modern homeowner.
When gas powered machines was all I could get, OK, I still have occasional need for a chainsaw and a weed whacker and a pressure washer, but those all spent way more time idle than in use.
If I did this kind of shit for a living, yeah, I would have a big, powerful, quick one I would probably pull behind a truck, but if it takes me an extra twenty minutes to de-winter-creepify my shed, that will be fine!
