Zero-gap co-op roguelite where every run sparks fresh team builds
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!



Jump straight into a run together with zero progression mismatch.
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!
Selected for the Logpier co-op catalog with a 80% positive rating across 2,645 Steam reviews (Popular Hit: 2,000+ reviews). Built for 1–4 Players via Online Co-op (All Players Must Own).
Structured around 2+ hrs (Multi-Session) (Survival / Story Campaign) sessions with easy to join at the start of each 40-min run, making it an easy shortlist contender for game night.
Note: This guide is an AI-assisted curation summary synthesized from public Steam store metadata and user review signals. First-hand squad play notes submitted by community reviewers appear separately below.
Everyone starts each run on equal footing with explosive co-op builds.