Not out of the box — but the WKMultiMod mod makes it co-op. White Knuckle is a horror game released in 2025, 99% positive on Steam (3,034 reviews), with 264 playing right now. $16.99 on Steam.
Climb and survive White Knuckle together — movement, enemies and world interactions sync, with team rules and lobbies. Steam lists White Knuckle 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.
White Knuckle is a first-person roguelite speed-climbing game. Ascend through the guts of SUB-STRUCTURE 17 using precision movement mechanics. Sharp reflexes…
Steam tags: Early Access, Parkour, First-Person, 3D Platformer, Horror, Platformer, Adventure, Rogue-like
Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether White Knuckle 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 White Knuckle? 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