Games like Blood Flowers
Games like Blood Flowers include Firework, Tales of the Black Forest, Outer Wilds, The Room, and Danganronpa 2: Goodbye Despair. We matched them by the tags players give Blood Flowers on Steam (JRPG, Puzzle, Indie, Mystery, and Visual Novel): closest matches first, and among equally close ones the better-known games.

Firework
Shared: Puzzle · Indie · Horror

Tales of the Black Forest
Shared: Indie · Horror · Visual Novel

Outer Wilds
Shared: Mystery · Puzzle · Story Rich

The Room
Shared: Puzzle · Mystery · Indie

Danganronpa 2: Goodbye Despair
Shared: Mystery · Visual Novel · Anime

Sally Face - Episode One
Shared: Indie · Puzzle · Horror

Danganronpa: Trigger Happy Havoc
Shared: Visual Novel · Mystery · Anime

Poppy Playtime
Shared: Puzzle · Horror · Singleplayer

The Room Two
Shared: Puzzle · Mystery · Indie

What Remains of Edith Finch
Shared: Mystery · Atmospheric · Story Rich

Return of the Obra Dinn
Shared: Puzzle · Mystery · Indie

Firewatch
Shared: Mystery · Atmospheric · Indie

Little Nightmares
Shared: Horror · Puzzle · Atmospheric

Persona 4 Golden
Shared: JRPG · Anime · Mystery

The Room Three
Shared: Puzzle · Mystery · Indie

Blue Prince
Shared: Puzzle · Mystery · Indie

Sanfu
Shared: Puzzle · Mystery · Visual Novel

Raging Loop
Shared: Mystery · Visual Novel · Indie

Danganronpa V3: Killing Harmony
Shared: Visual Novel · Mystery · Anime

Little Nightmares II
Shared: Puzzle · Horror · Singleplayer

Phoenix Wright: Ace Attorney Trilogy
Shared: Visual Novel · Mystery · Puzzle

Cyber Manhunt
Shared: Puzzle · Indie · Mystery

Bendy and the Ink Machine
Shared: Puzzle · Horror · Indie

OneShot
Shared: Indie · Puzzle · Story Rich