Games like 100 hidden aliens
Games like 100 hidden aliens include Hidden Folks, 100 hidden dogs, TOEM: A Photo Adventure, Carto, and 100 hidden cats. We matched them by the tags players give 100 hidden aliens on Steam (Casual, Hidden Object, Hand-drawn, Creature Collector, and Adventure): closest matches first, and among equally close ones the better-known games.

Hidden Folks
Shared: Casual · Hidden Object · Hand-drawn

100 hidden dogs
Shared: Casual · Hidden Object · Adventure

TOEM: A Photo Adventure
Shared: Adventure · Casual · Puzzle

Carto
Shared: Hand-drawn · Puzzle · Cute

100 hidden cats
Shared: Hidden Object · Hand-drawn · Casual

100 hidden cats 2
Shared: Hidden Object · Hand-drawn · Casual

Labyrinth City: Pierre the Maze Detective
Shared: Hidden Object · Casual · Adventure

100 hidden snails 2
Shared: Casual · Hidden Object · Creature Collector

100 hidden birds
Shared: Casual · Hidden Object · Adventure

100 hidden mice
Shared: Casual · Hidden Object · Creature Collector

Travellin Cats in Paris
Shared: Hidden Object · Casual · Puzzle

Gorogoa
Shared: Hand-drawn · Casual · Puzzle

100 hidden birds 2
Shared: Casual · Hidden Object · Adventure

100 hidden turtles
Shared: Casual · Hidden Object · Adventure

Milo and the Magpies
Shared: Hand-drawn · Hidden Object · Adventure

Machinarium
Shared: Hand-drawn · Puzzle · Casual

Hidden Through Time
Shared: Casual · Hidden Object · Puzzle

Thank Goodness You're Here!
Shared: Adventure · Hand-drawn · Casual

Strange Jigsaws
Shared: Casual · Adventure · Puzzle

100 hidden eternals
Shared: Casual · Hidden Object · Adventure

100 hidden cups
Shared: Casual · Hidden Object · Adventure

Slime Rancher
Shared: Adventure · Exploration · Cute

Sizeable
Shared: Casual · Hidden Object · Puzzle

A Building Full of Cats
Shared: Hidden Object · Hand-drawn · Creature Collector