Illusion Carnival isn't at all under 50 reviews, but it's basically never talked about despite seeming like the sort of thing that will probably become the next Project Moon in a few years. It's also free.
https://store.steampowered.com/app/2796340/Illusion_Carnival/

Quite literally everything from 727NotHound
https://store.steampowered.com/developer/727nh/

Torutaru, which has only 63 reviews in total
https://store.steampowered.com/app/1650250/ToruTaru/

Tarnished Blood, which is basically vidya Kingdom Death.
https://store.steampowered.com/app/2291700/Tarnished_Blood__Tactic_RPG/

Endgame: Road to Salvation which is a pretty massive sandbox kind of survival-horror mixture
https://store.steampowered.com/app/1264920/Endgame_Road_To_Salvation/

Urge, which is the spooky piss game
https://store.steampowered.com/app/1304350/Urge/

Enigma of Fear, which definitely doesn't fall under 50 reviews but never gets any (good) threads here and has zero actual discussion
https://store.steampowered.com/app/1507580/Enigma_of_Fear/