Not out of the box — but the Blasphemous Multiplayer mod makes it co-op. Blasphemous is a co-op platformer game released in 2019, 90% positive on Steam (51,484 reviews), with 479 playing right now. $6.24 on Steam.
See each other in Cvstodia and share items, stats and progress — a companion rather than a full co-op campaign. Steam lists Blasphemous as single-player, so it won't show up in Steam's own "games we both own" view as something you can play together — Ready Up counts it anyway, marked "Via mod", and you can hide mod-only games with one filter if that's not your thing.
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Blasphemous is a brutal action-platformer with skilled hack’n slash combat set in the nightmare world of Cvstodia. Explore, upgrade your abilities, and perform…
Steam tags: Metroidvania, Pixel Graphics, Souls-like, Dark Fantasy, Gore, 2D, Violent, Action
Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Blasphemous is one of them — then helps you pick tonight's game with a weighted roll or a bracket.
Or open the Steam store page.
Tired of Blasphemous? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.
Ready Up is a free tool: enter two Steam usernames and it lists the multiplayer games you both own, runs a bracket to pick one, and suggests new co-op games that fit how you both play. Ratings, tags and player counts from Steam and SteamSpy; page updated 2026-09-09. Powered by Steam — not affiliated with or endorsed by Valve Corporation or Microsoft. How the data works · Legal & privacy · All types · Game Pass