If you liked this
Games like Mountain
If you finished Mountain, the closest matches are Touhou Mystia's Izakaya, K-Pop Idol Stories: Road to Debut, DJ Life Simulator: From Your Bedroom to the Mainstage, Mukke and Bluegrass. All 36 share its indie genre and are ranked by how closely their themes and modes overlap.
Touhou Mystia's Izakaya
K-Pop Idol Stories: Road to Debut
DJ Life Simulator: From Your Bedroom to the Mainstage
Mukke
Bluegrass
King of the Arcade
Lovebirb
Touhou Mystia's Izakaya DLC 2.5 Pack
Freaked Fleapit
A Buttload of Free Games
March to a Million
Terminal House
Star Citizen
80
Hytale
91
Mewgenics
89
Fields of Mistria
92
Abiotic Factor
90
Welcome to Elderfield
80
Pathologic 3
90
Thank You For Your Application
89
Nighthawks
94
Caves of Qud
93
Cult of the Lamb: Woolhaven
94
Discounty
85
Starsand Island
95
Slay the Princess: The Pristine Cut
80
Tiny Bookshop
86
Everything Is Crab
90
Rift of the NecroDancer
87
Promise Mascot Agency
76
Restaurats
80
Strange Antiquities
90
Keep Driving
86
Core Keeper
86
Dredge
87