Games like A Serene Trip
Games like A Serene Trip include Volcano Princess, Class of '09: The Re-Up, FTL: Faster Than Light, Long Live The Queen, and 60 Seconds! Reatomized. We matched them by the tags players give A Serene Trip on Steam (Simulation, Strategy, Visual Novel, Choose Your Own Adventure, and Sci-fi): closest matches first, and among equally close ones the better-known games.

Volcano Princess
Shared: Simulation · Life Sim · Visual Novel

Class of '09: The Re-Up
Shared: Visual Novel · Dark Humor · Simulation

FTL: Faster Than Light
Shared: Strategy · Sci-fi · Indie

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

60 Seconds! Reatomized
Shared: Choose Your Own Adventure · Strategy · Dark Humor

Stellaris
Shared: Strategy · Sci-fi · Simulation

Growing Up
Shared: Simulation · Life Sim · Choose Your Own Adventure

The Test
Shared: Simulation · Choose Your Own Adventure · Visual Novel

Plague Inc: Evolved
Shared: Simulation · Strategy · Indie

BAD END THEATER
Shared: Visual Novel · Choose Your Own Adventure · LGBTQ+

Spacebase DF-9
Shared: Simulation · Strategy · Sci-fi

1 to 1 humanoid edible toys
Shared: Visual Novel · Simulation · LGBTQ+

Sweet Home
Shared: Visual Novel · LGBTQ+ · Simulation

I Was a Teenage Exocolonist
Shared: Visual Novel · Life Sim · Choose Your Own Adventure

Reigns
Shared: Choose Your Own Adventure · Indie · Simulation

Slay the Princess — The Pristine Cut
Shared: Visual Novel · Choose Your Own Adventure · Hand-drawn

Cosmoteer: Starship Architect & Commander
Shared: Sci-fi · Strategy · Indie

Magical Girl Witch Trials
Shared: Visual Novel · Female Protagonist · LGBTQ+

Reigns: Her Majesty
Shared: Indie · Simulation · Strategy

Monster Prom 4: Monster Con
Shared: Visual Novel · LGBTQ+ · Dark Humor

School Days
Shared: Choose Your Own Adventure · Visual Novel · Life Sim

Game Dev Tycoon
Shared: Simulation · Strategy · Indie

BidKing
Shared: Strategy · Simulation · Life Sim

Monster Prom 3: Monster Roadtrip
Shared: Visual Novel · LGBTQ+ · Choose Your Own Adventure