Is Onset multiplayer or co-op?

Yes — PvP. Onset is a mmo game released in 2019, 69% positive on Steam (766 reviews). $18.99 on Steam.

Steam tags: RPG, Massively Multiplayer, Simulation, Action, Indie, Open World, Multiplayer, Sandbox

Do you and a friend both own Onset?

Ready Up compares two Steam libraries and shows every multiplayer game you both have — including whether Onset 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 Onset you can play together

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

Quick answers

Is Onset co-op?

Onset does not list co-op on Steam; it has PvP.

Does Onset have PvP?

Yes, Onset has player-versus-player modes.

How many people play Onset?

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