The mobile take on the popular Hitman series, Hitman GO, is currently on sale for just $0.99 on the Windows Store. Given that the game usually runs a much pricier $4.99, that's a pretty solid discount.
If you're unfamiliar with Hitman GO, it's a slightly different take on the assassination-focused series, opting for puzzle-like gameplay as you sneak by guards to complete your missions. The game released in early 2015 for Windows and Windows Phone, and has remained pretty popular since.
In any case, you can grab Hitman GO from the Windows Store now for just $0.99. Just be aware that the sale is only set to last for 4 more days (as of this writing), and the store specifies that the discount only applies to Windows 10 and Windows 10 Mobile devices.
Thanks to Rahul for the tip!