For PC/ Mac, and 360. PS3 to be a few days after.
Episode 1 will be $4.99 and you can buy a season pass for episodes 2-5 for $14.99, saving $4.99 if you bought them all individually. There's also a 10% discount for pre-ordering on Steam right now.
Edit: It appears that Steam is charging the full $25 for all 5 episodes, instead of saving $4.99 like on consoles.
Sorry, Wii U Owners
Episode 1 will be $4.99 and you can buy a season pass for episodes 2-5 for $14.99, saving $4.99 if you bought them all individually. There's also a 10% discount for pre-ordering on Steam right now.
Edit: It appears that Steam is charging the full $25 for all 5 episodes, instead of saving $4.99 like on consoles.