Official game facts
OFFICIAL PATCH RECORD
What Hotfix 1.0.1 fixes on Steam Deck
Hotfix 1.0.1 fixes Steam Deck-to-PC save synchronization on the same Steam account and fixes an issue that could cause players to lose all menu controls on Steam Deck. These are shipped fixes, not a Valve compatibility classification or a published handheld-performance target.
- Steam Deck-to-PC save synchronization: fixed
- Loss of all menu controls on Steam Deck: fixed
- No official FPS, battery-life or preset target is published
- A Steam storefront purchase alone does not prove a Deck compatibility rating
OFFICIAL PATCH RECORD
Do not confuse three different questions
A game can launch through Steam, receive a developer fix mentioning Steam Deck, and hold a Valve compatibility rating—each is a different claim. The current source set confirms the PC Steam release and the two Hotfix 1.0.1 repairs, but does not publish a Valve rating or a handheld benchmark.
- Store availability: confirmed on Steam
- Cross-device cloud synchronization: fixed in Hotfix 1.0.1
- Valve compatibility classification: not established by the sources cited here
- Exact handheld performance: not established by the sources cited here
OFFICIAL PATCH RECORD
Safe first-session checklist
- Install the current official game update before starting a long run
- Avoid alternating between desktop Steam and Steam Deck until you have confirmed which device has the newest save
- Let one device finish its sync before opening the other
- Take a screenshot of character progress and game version before a device switch
- Do not delete local files or force a cloud overwrite as a first response to uncertain sync state
- Report the device order, account, version and time of the last successful save through official support
OFFICIAL PATCH RECORD
How this page will change
This page will be updated if Valve publishes a compatibility classification or if the developer publishes a numbered note that changes the Steam Deck sync status. A community frame-rate report, a launcher overlay, or a one-off successful session is not enough to turn an unconfirmed performance claim into site guidance.
Related verified guides
Keep cloud synchronization and update-related loss as separate diagnoses.
OPEN GUIDE →CONNECTED INTELLIGENCEPC system requirementsReview the published Windows PC baseline.
OPEN GUIDE →CONNECTED INTELLIGENCELatest patch notesCheck whether a newer numbered update changes the tracked status.
OPEN GUIDE →Recommended path
CONNECTED INTELLIGENCE PATH
Follow the evidence network
How we verify this guide
Our editors prioritize official storefronts and first-party patch notes. Community discoveries do not become confirmed facts without independent verification.
Sources
Facts checked September 7, 2026. Review percentages and prices are time-sensitive snapshots, never editorial scores.
Frequently asked questions
Is Crimson Moon Steam Deck Verified?+
The official sources tracked on this page do not establish a Valve Verified or Playable rating.
Can Crimson Moon saves sync between Steam and Steam Deck?+
Hotfix 1.0.1 explicitly fixes Steam Deck-to-PC syncing on the same Steam account.
Does this page promise a Steam Deck frame rate?+
No. The cited first-party sources do not publish a Deck frame-rate target, graphics preset or battery estimate.