Going Going Gone: Race The Sun Is Free For One Day
That there Race the Sun [official site] is a fine game. You skim across abstract landscapes in a solar-powered vehicle, trying desperately to outrun the impending sunset while not smashing into the odd architecture like a ruddy great fool. It's fast and exciting. I'd recommend you pay money for it, and I'll certainly recommend you snag it for free.
To celebration the launch of an iOS version (and its new chillout DLC on PC), developers Fippfly have made Race the Sun free for one day. Head on over to Steam to nab it and it'll be yours forever.
You have, I believe, until about 6:30pm tomorrow to grab it. You don't even need to install it today, as long as you move quickly and register it - you can do it all in your browser, no Steam client required.
What more need I say? It's free, it's fun, and it looks like this:
Go get it.