Official screenshot · Steam media gallery · © Sunny Lab / Silver Lining Interactive. Illustrative media; see material statement.
The recorded Valve evidence
The retrieved Steam listing displays an Unknown compatibility status. Valve's public compatibility endpoint returns no published assessment in the collected snapshot. Those records do not provide a tested Steam Deck rating that this guide can publish as settled.
The developer’s separate announcement
Sunny Lab's homepage embeds a post announcing Steam Deck verification. The associated Instagram body was not independently retrieved during the research. That developer claim is consequently identified separately from the Valve records rather than silently used to erase the conflict.
Do not infer a handheld benchmark
The collected notes contain no identified release-build Steam Deck performance test. They do not supply a confirmed frame rate, battery-life result or recommended Proton version. Those figures are absent here rather than inferred from the visual style or a video recorded on an unspecified PC.
Controller support and a different console
Controller support and Nintendo Switch availability concern different product features. Neither establishes Valve's Steam Deck rating. The separate platform guides explain those editions without substituting their information for a handheld compatibility assessment.
Use the current Valve product information
The compatibility sources are linked below so the product's current status can be checked. The snapshot described here is the research record from October 14, 2026. It is not a claim that an unresolved rating will remain unchanged after that date.
Sources
Official Steam store · Sunny Lab — developer website · Valve — Steam Deck compatibility report · Checked October 14, 2026