Waveform: Eris | Mythic Sword

Summary pulled directly from Steam - Some text may only be applicable to Steam platform

Eris, a world of discord and darkness, needs your help! Restore the light to a new planet in Waveform's first DLC pack.

Key Features:

7 new levels to explore. Re-play them in Challenge Mode for remastered experiences too!
Interact with a brand new object - the Pulsar
Experience another mind-bending bonus level in Reverse Mode!
New Deep Space Mode with a new leaderboard to conquer
5 new achievements

To access this content in-game once you've purchased it, scroll left from Pluto in the "Select Level" screen and you'll be able to play the levels of Eris. The content is playable no matter how far you've progressed in the main game.