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Proton vs CrossOver: catalog facts
Proton	CrossOver
Free Free and open source, distributed through Steam.	Paid Costs $74 with a free 14-day trial.
Linux	macOS, Linux
Integrated into Steam with no setup Bundles DXVK and other translation layers	Runs Windows programs without a Windows licence No full virtual machine needed
Linux only Tied to the Steam client for normal use	Paid after the trial Not every Windows program or game works
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.