Confirmed facts checklist

Confirmed in official descriptions

• Graceful Decay develops Uncanyon; Annapurna Interactive publishes it.
• Sonia is the central character and the Finder of Lost Things.
• The world sits between unparallel realities.
• Fragmentstone devices let Sonia morph the environment.
• Described effects include changing paths, stone, shadow and dangers.
• The adventure covers five biodiverse, semi-open regions.
• Records, ancient equipment, ruins, riddles and secret challenges are mentioned.
• The announced release window is 2027.

Confirmed by the Steam listing

The store identifies a Windows PC release, single-player play and full controller support. Detailed PC hardware specifications remain pending in the reviewed snapshot. Platform-specific store information should be rechecked before purchase.

Blending can be paused

The developer-authored PlayStation Blog introduction confirms that reality blending can be frozen so players can explore the mixture. Some points can place players in multiple realities at the same time. Exact controls and scene-specific limits still need a playable build.

Not yet a tested rulebook

Exact device inputs, ability counts, cooldowns, upgrade paths, puzzle totals, official region names, full maps, achievement lists and completion times are not established by the material used for this guide.

“Not confirmed” means the cited material does not establish a point. It does not mean the feature is impossible or will never appear.

Use the right source for the question

Use official listings for platforms and release status, the developer description for the premise and mechanics, and clearly labeled footage for visible observations. Our source directory records the reference and review date for each source.