24 games ranked by how much the tags Steam players vote on them overlap with a Museum of Dubious Splendors's. A rare tag counts for far more than one that sits on half the store, and popularity never moves a game up.
What they share most: Free to Play, Walking Simulator, Casual, Experimental, Alternate History.

1·The Awesome Adventures of Captain Spirit
90% match · Free to Play, Walking Simulator
93% of 15,132 reviews positive

2·Bodyless
89% match · Free to Play, Experimental
82% of 61 reviews positive

3·A Raven Monologue
88% match · Free to Play, Experimental
94% of 2,743 reviews positive

4·TAKANARIA
88% match · Free to Play, Casual
91% of 260 reviews positive

5·The Way of Life Free Edition
85% match · Free to Play, Walking Simulator
74% of 6,127 reviews positive

6·Color Symphony
85% match · Free to Play, Experimental
73% of 1,294 reviews positive

7·Cloud Climber
84% match · Free to Play, Walking Simulator
92% of 4,157 reviews positive

8·Port of Call
84% match · Free to Play, Experimental
88% of 1,282 reviews positive

9·Only If
83% match · Free to Play, Walking Simulator
62% of 5,958 reviews positive · 2 playing

10·Awkward Dimensions Redux
83% match · Free to Play, Walking Simulator
80% of 2,963 reviews positive

11·Velvet Sundown
82% match · Free to Play, Walking Simulator
60% of 1,758 reviews positive

12·Mýrdalssandur, Iceland
82% match · Free to Play, Walking Simulator
91% of 1,571 reviews positive

13·The Plan
82% match · Free to Play, Experimental
92% of 23,675 reviews positive

14·Banyu Lintar Angin - Little Storm -
81% match · Free to Play, Experimental
96% of 918 reviews positive

15·Marie's Room
81% match · Free to Play, Walking Simulator
93% of 6,710 reviews positive

16·Bientôt l'été
80% match · Walking Simulator, Experimental
48% of 287 reviews positive

17·Devolverland Expo
80% match · Free to Play, Walking Simulator
89% of 5,727 reviews positive

18·Explore Fushimi Inari
80% match · Free to Play, Walking Simulator
95% of 1,395 reviews positive

19·All Is Dust
79% match · Free to Play, Walking Simulator
45% of 1,321 reviews positive

20·We Went Back
78% match · Free to Play, Walking Simulator
85% of 4,781 reviews positive

21·Off-Peak
78% match · Free to Play, Walking Simulator
89% of 1,848 reviews positive

22·AltspaceVR
77% match · Free to Play, Casual
71% of 596 reviews positive

23·The Backrooms Game FREE Edition
77% match · Free to Play, Walking Simulator
80% of 3,606 reviews positive

24·What Never Was
77% match · Free to Play, Walking Simulator
95% of 5,112 reviews positive
The closest matches to a Museum of Dubious Splendors on Steam are The Awesome Adventures of Captain Spirit, Bodyless, A Raven Monologue, TAKANARIA, The Way of Life Free Edition. They rank highest because their Steam community tags overlap most with a Museum of Dubious Splendors's, and shared tags include Free to Play, Walking Simulator, Casual.
Every game is described by the tags Steam players vote on it. Rare, specific tags such as Free to Play, Walking Simulator, Casual count far more than catch-all ones like "Indie" or "Singleplayer", and each game is scored on how closely its whole tag profile matches a Museum of Dubious Splendors's. Popularity never affects the ranking.