Stardew Valley is currently reduced to around £7.3 which is a brilliant price for a brilliant game.
I've clocked over 50 hours in the past 2 weeks. Definitely one of my favourite games of 2016. Developed by a single developer mostly in his free time, it definitely deserves all the support it gets. An impressive game.
If you prefer Steam, it's £7.36 there at the moment: http://store.steampowered.com/app/413150/
GOG at £7.39: https://www.gog.com/game/stardew_valley