Myth is a cooperative game for 2 to 5 players developed and published by MERCS Miniatures. A complete game in Myth is called a Story. Each Story is played over three Acts. Acts can be played sequentially, or can be split up over three different game sessions. Each Act lasts 2 hours.
This is what you get in the core set:
And of course there are stretch goals! At the captain level pledge, which is $100,-, you get the core game and all unlocked stretch goals. There's a great chart here that explains it all.
Another very promising co-op boardgame with nice miniatures, boards and dice. Worth checking out!