Atomic Heart Drops Denuvo DRM More Than Three Years After Launch

Atomic Heart has received a new PC update that appears to remove Denuvo DRM from the game, potentially making it easier to run and test on Steam Deck and other Linux based handhelds.

The removal was not mentioned in the official patch notes. However, an examination of the updated game files indicates that Denuvo is no longer present. The Steam store page reportedly continues to list the protection system, suggesting that the description has not yet been updated.

Atomic Heart launched more than three years ago, making the timing of the change understandable. Publishers commonly use Denuvo during a game’s initial sales period before removing it through a later update.

Denuvo removal may simplify Steam Deck testing

Denuvo is designed to protect PC games against unauthorised copying during their most commercially important launch period. Its use remains controversial because it can introduce additional restrictions and complicate troubleshooting.

For Steam Deck owners, one of the most relevant changes may be the removal of activation limits associated with changing Proton versions.

Testing several Proton compatibility layers can cause Denuvo to treat each configuration as a different system. Repeated changes may then trigger a temporary activation restriction that prevents the game from launching for around 24 hours.

Without Denuvo, players should have more freedom to switch between standard Proton, Proton Experimental, GE Proton, and other community builds when looking for the best performance or compatibility.

Atomic Heart change	Possible effect
Denuvo removed	Fewer activation restrictions
Proton switching simplified	Easier compatibility testing
Offline access improved	Less dependence on DRM checks
Game files updated	Steam store description may be outdated
Performance impact	Small improvement is possible but unconfirmed

The change should also make troubleshooting less frustrating for players who reinstall the game, move between devices, or regularly adjust their compatibility settings.

Performance improvements are possible but not guaranteed

Removing Denuvo can reduce some background processing, but it does not guarantee a noticeable increase in frame rate.

Atomic Heart is already a demanding game on Steam Deck, where players must balance image quality, resolution, and performance. Even a small reduction in CPU activity or frame time variation could help, particularly in busy areas where the handheld is already close to its performance limits.

However, no comparative benchmarks were included with the report. It is therefore too early to determine whether the new version delivers higher average frame rates, smoother frame pacing, faster loading, or better battery life.

Area	Expected result
Average frame rate	Possible small change
Frame pacing	May improve in some situations
Loading time	No confirmed improvement
Battery life	Any gain is likely to be minor
Proton compatibility	Testing should become easier
Activation problems	Restrictions should be reduced

Most of Atomic Heart’s performance will still depend on its graphics engine, visual settings, shader behaviour, game updates, and the Steam Deck’s hardware limits.

The Steam listing still mentions Denuvo

The Steam store page reportedly continues to state that Atomic Heart includes Denuvo Anti Tamper.

This may simply be an outdated disclosure that has not yet been removed following the latest patch. Store descriptions are not always updated at the same time as game files.

Players should therefore avoid assuming that Denuvo remains active solely because it is still mentioned on the store page. At the same time, the publisher has not publicly announced the removal, so confirmation currently relies on analysis of the updated PC build.

Atomic Heart becomes easier to manage on Linux handhelds

The removal is most useful for players who frequently change compatibility tools or move the game between different systems.

Steam Deck owners often test several Proton versions when a game experiences crashes, visual errors, launcher problems, or performance regressions. Denuvo could interfere with this process by counting those changes as separate activations.

Removing that restriction gives players more control over how the Windows version runs through Linux.

Atomic Heart may not receive a dramatic performance boost, but the game should now be easier to install, test, and maintain. For Steam Deck players, avoiding temporary activation blocks when changing Proton layers is likely to be the clearest practical improvement.