Ink

Ink. is a semi-procedural/random RPG action shooter.
You will play as a small ink creature, living in a book.
Find your way through 10 chapters, and write your story by facing enemies and bosses, finding new items and discovering new synergies and combos.

In addition to the main story there are a lot of different challenges you can try to beat.
Challenges are tipically unique battles with bosses or set of enemies that, when defeated, it unlocks a special reward.
Story mode and challenges can be played in singleplayer or in local coop.

Local Coop can be activated at any moment during the game by plugging a controller (up to 4 players)
The first player can still play with mouse+keyboard or with a joypad too (check game options for this)