The independently developed rhythm roguelike action game is also is development for for Nintendo Switch, PS4 and PlayStation 5 consoles. Previously announced under the title “Project JabberWocky,” Ratatan is produced by Kazuto Sakajiri and directed by Patapon designer Hiroyuki Kotani, with art illustrated by Nelnal, and featuring music by Patapon sound designer Kemmei Adachi.
"We’ve chosen to release Ratatan into Early Access because we want to involve even more players in shaping the final game," writes Sakajiri. "We believe that gathering broad feedback is essential to help us improve the stability of online multiplayer, fine-tune game balance and difficulty, and enhance overall usability—including controls, flow, and playability."
Preview music tracks are also streaming on SoundCloud and the developer's YouTube channel, co-composed by Sadaki Naoe.
From the Steam product page:
Ratatan is a rhythm roguelike action game that combines rhythm games and side-scrolling action, with online co-op gameplay supporting up to 4 players. An intense battle unfolds with over 100 characters fighting in a massive melee. Let's defeat the enemies together with the dynamic rhythmic music.YouTube - RATATAN
Ratatan Early Access Trailer has been released🎉
— RATATAN (ラタタン) (@ratatan_game) June 7, 2025
Early Access begins July 25!
Ratatan Demo Now Available on Steam : https://t.co/b7zZjxkc08#ラタタン #Ratatan pic.twitter.com/7LYLu184i8