From developer Kenney (who makes lots of assets for game developers), MakeRoom is a cute sandbox building game all about building rooms to look sweet. Released back in August, it's gone onto receiving a Very Positive overall rating from users on Steam.
Currently, it has a Steam Deck Playable rating but Kenney has made a whole bunch of changes as they hope to get it bumped up to Verified.

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Writing in a Steam announcement the developer said: "Many changes have been made to improve compatibility with Steam Deck. Controller icons are more accurate, the interface is bigger (by default) and text has been adjusted. It's currently being tested by Steam and hopefully the game will reach Steam Deck Verified status soon!".
All the changes:
New features
Added 10 new Steam Achievements
Overhauled the tutorial (now teaches selection, rotation, room resizing & more)
Changes & improvements
Added 5 new sample objects (made by Silthulhu)
Added loading screen when preparing Steam Workshop items
Steam Workshop items are no longer reloaded when returning to the title screen
Added new animation and sound when downloading or uploading to Steam Workshop
Steam Workshop uploads now include a list of custom objects used
Adjusted the maximum scale from 2× to 3×
Increased interface size on Steam Deck; removed option to shrink
Adjusted custom mode interface to prevent overlapping elements
Changed the colors of the offset arrows to match the gizmo in custom mode
Added dividers to toolbar menus
Improved toolbar icons
Added tooltips to toolbar menu
Improved the round bathtub object
Fixes
Added boundaries for scaling objects via hotkeys
Fixed issue with tracking completed requests
Correct input glyphs now display on Steam Deck
Fixed input glyph sizing on Steam Deck
Fixed settings not applying in custom mode
New items
4× Flat roof window (Construction)
Tea pot (Food)
Tea kettle (Food)
Chimney top (Fireplaces)
Chimney top narrow (Fireplaces)
Moon shape (Shapes, custom mode)
Moustache shape (Shapes, custom mode)
Crystal (Accessories)
Crystal quartz (Accessories)
Crystal salt (Lamps)
Guitar acoustic (Accessories)
Guitar electric (Accessories)
I'm curious if anyone has played - is it the same kind of game as those washing simulators or house flipping simulators?
I'm curious if anyone has played - is it the same kind of game as those washing simulators or house flipping simulators?
No. It's basically some kind of diorama builder.
I bet there is an audience. Not everyone wants Hades/Hollow Knight/Torchlight/COD games.