Games like Toilet 101
Games like Toilet 101 include The Exit 8, Stray, Outer Wilds, Moncage, and COCOON. We matched them by the tags players give Toilet 101 on Steam (Puzzle, 3D Platformer, Adventure, Exploration, and 3D): closest matches first, and among equally close ones the better-known games.

The Exit 8
Shared: Puzzle · Exploration · Horror

Stray
Shared: Adventure · Exploration · Puzzle

Outer Wilds
Shared: Exploration · Adventure · Puzzle

Moncage
Shared: Puzzle · Adventure · Singleplayer

COCOON
Shared: Puzzle · Adventure · Exploration

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

Poppy Playtime
Shared: Puzzle · Horror · Singleplayer

Little Nightmares II
Shared: Adventure · Puzzle · Horror

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

Monument Valley
Shared: Puzzle · Adventure · Exploration

Spirit of the North
Shared: Adventure · Puzzle · Exploration

Inside the Backrooms
Shared: Puzzle · Horror · Adventure

Chants of Sennaar
Shared: Puzzle · Adventure · Singleplayer

A Game About Digging A Hole
Shared: Exploration · Horror · Adventure

The Last Campfire
Shared: Puzzle · Adventure · Singleplayer

Little Nightmares
Shared: Adventure · Puzzle · Horror

Blue Prince
Shared: Puzzle · Exploration · Adventure

Sonic Frontiers
Shared: 3D Platformer · Adventure · Exploration

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

Slime Rancher
Shared: Adventure · Exploration · Singleplayer

SchoolBoy Runaway
Shared: Puzzle · Adventure · Horror

The Room
Shared: Puzzle · Adventure · Singleplayer

FEZ
Shared: Puzzle · Exploration · Adventure

MiSide
Shared: Horror · 3D · Singleplayer