This steam key is from Humble Choice January. The game is Olliolli World Rad Edition. It contains the main game OLLIOLLI World and also the DLC OlliOlli World Expansion Pass,
https://store.steampowered.com/bundle/23090/OlliOlli_World_Rad_Edition/

This game is region locked. You agree by entering this giveaway that if the key doesn't work for you, I can reroll / delete the giveaway.
Good luck!