Games like Sunflower Code
Games like Sunflower Code include Poppy Playtime, Atomic Heart, The Room, The Room 4: Old Sins, and The Room Two. We matched them by the tags players give Sunflower Code on Steam (Adventure, Horror, Mystery, Puzzle, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Puzzle · Mystery

Atomic Heart
Shared: Adventure · FPS · Horror

The Room
Shared: Mystery · Puzzle · Adventure

The Room 4: Old Sins
Shared: Mystery · Adventure · Puzzle

The Room Two
Shared: Mystery · Puzzle · Horror

Little Nightmares II
Shared: Adventure · Horror · Puzzle

Inside the Backrooms
Shared: Horror · Puzzle · Adventure

Bendy and the Ink Machine
Shared: Horror · Puzzle · First-Person

Amnesia: Rebirth
Shared: Action-Adventure · Puzzle · Horror

The Room Three
Shared: Adventure · Mystery · Puzzle

Outer Wilds
Shared: Mystery · Adventure · Puzzle

Resident Evil Requiem
Shared: Horror · FPS · Action-Adventure

Garten of Banban
Shared: Horror · Puzzle · First-Person

Lorelei and the Laser Eyes
Shared: Adventure · Puzzle · Horror

Five Nights at Freddy's: Security Breach
Shared: Horror · Adventure · Singleplayer

Hello Neighbor 2
Shared: Adventure · Horror · Puzzle

Firewatch
Shared: Adventure · Mystery · First-Person

Bendy and the Dark Revival
Shared: Horror · Adventure · First-Person

Portal 2
Shared: Puzzle · First-Person · Singleplayer

Amanda the Adventurer
Shared: Horror · Puzzle · Mystery

Blue Prince
Shared: Mystery · Puzzle · Adventure

Choo-Choo Charles
Shared: Horror · First-Person · Singleplayer

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

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