The Humble Store does publisher weeks from time to time and the latest one for Square Enix is a doozy. There's hefty discounts on Nier: Automata, Rise of the Tomb Raider and pretty much every Final Fantasy game available on PC.
It's been an outstanding couple of months for mouse-based video games. In February we got PlayStation VR adventureMoss, and now we have the PC release of Ghost of a Tale, an action RPG about a mouse bard slinking through a dangerous fantasy world in order to save his true love.
I'm not sure if a nice, summer day is the best time to play the likes of Frictional's Amnesia: The Dark Descent or A Machine for Pigs. Then again, if you're easily terrified, maybe it's the absolute best time... especially if you can snag both, right now, for free.