Runbow is a multiplayer-focused platformer in which players aim to be the first to reach a trophy at the end of each level.

[4] The game supports features such as achievements, time trials, a special mode called "Master the Bowhemoth", and many more.

[7] On 13 April 2015, 13AM Games revealed several independent game characters that would guest-star in the Runbow roster: Shovel Knight from the eponymous Shovel Knight, Rusty from SteamWorld Dig, Juan and Tostada from Guacamelee!, Swift Thornebrooke from Sportsball, Scram Kitty from Scram Kitty and His Buddy on Rails, along with CommanderVideo and CommandgirlVideo from the Bit.Trip series.

On 11 April 2016, 13AM Games revealed via Nintendo Life additional downloadable content released on 14 April, which includes themed packs that come with costumes and music, a complimentary addition of guest playable character Lilac from Freedom Planet, and a 48-level story expansion called Satura's Space Adventure.

It has a score of 82 on Metacritic, indicating "generally favorable reviews", based on 34 critics.