The side-scrolling platformer Occultus Command is available on Steam. The game which has a 90’s comic book art style features local co-op. A demo for the game is also available to try out. Here’s a description of the game’s plot from its Steam page.
“It is the year 3260, a cosmic storm named Father’s Wrath threatens to end life on Earth’s upper layer. The surest way to survive Father’s Wrath is to escape underground to a world called Occultus. Information on the incoming storm and Occultus is encrypted, hidden and monitored.”
SOURCE: Press Release