A big update just hit Steam. It adds a campaign mode for 1 or 2 players and a bunch of other goodies! We know that you don't always have friends over to play, so the campaign mode is there to give you another way to enjoy Paperbound.

Plus we added some other game modes and ways to modify existing game modes.

Here's the full list of additions:

• A new campaign that lets 1 or 2 players work together in a series of challenges across all 18 arenas. The campaign mode all includes 2 new, campaign-specific game types: Stalwart and Gatekeeper (more on these below).
• New mutators allows you to mix it up with things like weapon pickups, infinite ink bombs, vampire mode, or a variety of other edits to give you a lot of new stories to tell.
• Random match rotation that picks random game type, arena, and mutators in free play
• Added a secret soccer mode...
• Improvements to AI navigation and behavior, including difficulty levels
• Some visual changes to add clarity, such as larger glows for exit points and an option to decrease background color saturation (some players experienced a bit of difficulty tracking the fast-paced action, so this should help them out).
• Gatekeeper is much like your classic tower defense. A bunch of baddies spawn, and you have to prevent them from reaching any of the exit points that randomly spawn in the arena. But they have laser-like focus on getting to those exit point.
• Stalwart is similar, but each enemy has to kill you once before opening their own personal exit point.
• Mouse input support (gamepad is still the best way to play, but we discovered that not everyone has one handy)