Is KallaX multiplayer or co-op?

Yes — co-op and PvP. KallaX is a physics sandbox game released in 2023, 86% positive on Steam (320 reviews). $9.99 on Steam.

Steam tags: Casual, Online Co-Op, Team-Based, Puzzle, Physics, 3D, Character Customization, Moddable

Do you and a friend both own KallaX?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether KallaX is one of them — then helps you pick tonight's game with a weighted roll or a bracket.

Or open the Steam store page.

Games like KallaX you can play together

Tired of KallaX? The Swap tab finds the closest unowned games of the same type that are newer or rated higher.

Quick answers

Is KallaX co-op?

Yes, KallaX supports co-op.

Does KallaX have PvP?

Steam's store page doesn't flag a PvP category, but KallaX is tagged Team-Based — it's player-versus-player.

How many people play KallaX?

Player counts were not available when this page was built.

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