Games like Twin Blue Moons
Games like Twin Blue Moons include Tricolour Lovestory, 千面 Melancholy Love, Gaokao.Love.100Days, 寄甡 Symbiotic Love, and 人间 The Lost We Lost. We matched them by the tags players give Twin Blue Moons on Steam (Indie, Casual, Simulation, Adventure, and Visual Novel): closest matches first, and among equally close ones the better-known games.

Tricolour Lovestory
Shared: Visual Novel · Simulation · Casual

千面 Melancholy Love
Shared: Indie · Casual · Visual Novel

Gaokao.Love.100Days
Shared: Visual Novel · Simulation · Casual

寄甡 Symbiotic Love
Shared: Indie · Casual · Simulation

人间 The Lost We Lost
Shared: Indie · Simulation · Casual

1 to 1 humanoid edible toys
Shared: Visual Novel · Female Protagonist · Adventure

Mirror 2: Project X
Shared: Visual Novel · Female Protagonist · Anime

Volcano Princess
Shared: Multiple Endings · Female Protagonist · Simulation

Long Live The Queen
Shared: Visual Novel · Indie · Simulation

Shan Gui (山桂)
Shared: Indie · Visual Novel · Casual

妄想症:Deliver Me
Shared: Indie · Simulation · Adventure

Marco & The Galaxy Dragon
Shared: Visual Novel · Adventure · Casual

Tiny Snow
Shared: Indie · Casual · Visual Novel

Sweet Home
Shared: Visual Novel · Female Protagonist · LGBTQ+

Florence
Shared: Indie · Casual · Adventure

fault - milestone one
Shared: Visual Novel · Fantasy · Female Protagonist

Some Some Convenience Store
Shared: Casual · Visual Novel · Indie

West Sweety
Shared: Casual · Indie · Simulation

他人世界末 On-looker
Shared: Visual Novel · Indie · Casual

Miracle Snack Shop
Shared: Visual Novel · Indie · Simulation

Class of '09: The Re-Up
Shared: Visual Novel · Casual · Female Protagonist

Summer Pockets
Shared: Casual · Adventure · Visual Novel

Emily is Away <3
Shared: Simulation · Indie · Casual

夜永 Eternal Love
Shared: Casual · Simulation · Visual Novel