The only other threads like this I could find have been closed, so here's a new one.
What unreleased games have you been keeping an eye on? Why should we be interested in them?
I rarely pre-order games, but I pre-ordered Abyss Odyssey yesterday. It can currently be had for $10, which will increase to $15 when it's released on July 15th. It's developed by ACE, who created the fantastically weird and unique Zeno Clash games. It's a semi-roguelike 2-D side scrolling beat-em-up with supposedly deeper fighting mechanics than your average beat-em-up. I really like the concept as well as the beautiful hand-drawn art style.
Official Site:
http://abyssodyssey.com/
Preview:
http://www.rockpapershotgun.com/2014/06/20/abyss-odyssey-release-date/#more-214561
E3 Trailer:
http://www.youtube.com/watch?v=xtKd6paqhEg