If you're not familiar with Grim Dawn yet, it's a steal at 2.49 € (probably the same in USD). I haven't really played this particular Worms game almost at all, but Worms W.M.D is available for 1.49 € (also probably the same in USD), which is also a steal. I imagine many still consider Worms Armageddon to be the best in the series, and it's definitely still fun. Not sure how enjoyable the Worms games are in single-player, but if you can find people to play with, they ought to be fun.

If you don't mind strategy games (like fairly slow-paced ones), you could also pick some Total War game. Every Total War game I've played has been fun so far. Pick whichever has the most interesting theme for you and you can still stand looking at (the oldest games look quite rough). Shogun 2 is one classic and quite cheap too. I believe Medieval II is considered the best by many (although obviously opinions vary a lot), but it looks quite a bit rougher and might not be perfect on non-4:3 screens (haven't tried it though).

Congratulations. 8bitDo controllers have earned a fairly good reputation over the years.

The extra buttons are an extra, they come in handy for some games, but are completely useless in others.

I've been using a XboxOne controller for years now, and the only signs of wear are a small drift on the right stick and the USB cable disconnecting some times. How do you manage to break the new Xbox ones so quickly? Has their quality dropped so much with the new ones?

Also, if you're up to it, I'd be interested in knowing how the replacement pasts worked and if you had any problems to replace the parts.

The shape of the Xbox controller seems very popular among third party gamepads, and it's easy to see why as their quite ergonomical.

The cyclone has Hall Effect sticks or the new TMR ones?

Good ridance.

They may have seen how likely they were going to be sued by almost everybody except Disney, and decided that it wasn't worth it to keep it, at least for the public. I don't think they'll get rid of it entirely, but instead it will be a service for marketing and/or other professionals.

Wait a minute! Aren't you the same guy who made a thread about being overwhelmed by so many games? And you still want more?!

You've come to the right place!

I seem to recall that you weren't into violent games (my apologies if I'm confusing you with someone else), and with that in mind, here are some titles I think could interest you that Zkuq didn't list:

If you like platformers, you can't go wrong with Ori and the Blind Forest 75% off_$4.99 (link) 

For jRPGs, there is Tales of Zestiria, 90% off_$4.99 (link), tho I think a remake/remaster is in the works? I'm not sure. If you're more interested in western RPGs, Fallout: New Vegas is 90% off_$0.99 (link), but the graphics are dated.

If you like strategy games,Shadow Tactics: Blades of the Shogun is excellent and it's 90% off_$3.99 (link). Also strategy, but very different, is Warpips, 85% off_$2.54 (link)

If you want to try some adventure games, the so called point'n'click games, Deponia: The Complete Journey has the first three games ant it has a great price 90% off_$2.99 (link), or you can get the first one for just $0.99 (sadly, they gave it away for free a couple weeks ago).

The Steamworld games are also a good option, and they're all deeply discounted right now (link) 

It's a bit old, but if you want a GTA-like with LEGO, there's LEGO City Undercover 85% off_$4.49 (link). There are also many other LEGO games to get.

Scott Pilgrim vs. The World is a good Beat'em'Up, or brawler game, and it's 67% off_$4.94 (link)

And I don't know, there are many, many more good cheap games. You can also check the Steam deals for less than $10 or less than $5, and sort them out by user reviews. 

I wish you good luck. Both to be selected and to find a good game.