We reported that DiRT Rally was available for free on the Humble Store should you subscribe to their newsletter a little while ago, but should you have not been to keen to sign over your e-mail address in exchange, you can actually now pick the same game up, for nothing on Steam, too, without any catch.
The game originally released in late 2015, so it's a pretty good deal for such a recent game, and honestly I've always found the DiRT series of games excellent fun. Codemasters are veterans in the racing genre, and this is another solid entry in that linage - with 17 cars and 36 rally stages to race on.
The game features various locations including Monte Carlo, Powys, and Argolis, and supports both single and multplayer. Reception to the game was very positive on release, so it's well worth picking up for free.
The deal runs out tomorrow, September 16th, so if you've still not picked the game up yet, you better be quick. It's free, after all, so why not?