Games like Aemaso 1: Containment Breached
Games like Aemaso 1: Containment Breached include Little Nightmares, Little Nightmares II, Poppy Playtime, Layers of Fear (2016), and Firewatch. We matched them by the tags players give Aemaso 1: Containment Breached on Steam (Adventure, Dark, Horror, Walking Simulator, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Little Nightmares
Shared: Adventure · Horror · Dark

Little Nightmares II
Shared: Adventure · Horror · Dark

Poppy Playtime
Shared: Horror · Singleplayer · Dark

Layers of Fear (2016)
Shared: Horror · Walking Simulator · Adventure

Firewatch
Shared: Adventure · Walking Simulator · Singleplayer

Blair Witch
Shared: Adventure · Horror · Indie

INSIDE
Shared: Dark · Horror · Adventure

Among the Sleep - Enhanced Edition
Shared: Horror · Adventure · Indie

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

Visage
Shared: Horror · Dark · Adventure

Slender: The Arrival
Shared: Horror · Dark · Indie

Outlast
Shared: Horror · Singleplayer · Dark

Bendy and the Dark Revival
Shared: Horror · Singleplayer · Adventure

Hellblade: Senua's Sacrifice
Shared: Dark · Adventure · Singleplayer

LIMBO
Shared: Dark · Indie · Adventure

Still Wakes the Deep
Shared: Horror · Walking Simulator · Dark

What Remains of Edith Finch
Shared: Walking Simulator · Adventure · Singleplayer

From The Darkness
Shared: Horror · Dark · Indie

Buckshot Roulette
Shared: Dark · Horror · Singleplayer

ROUTINE
Shared: Singleplayer · Dark · Adventure

Layers of Fear 2 (2019)
Shared: Horror · Dark · Walking Simulator

Fran Bow
Shared: Adventure · Horror · Dark

Lucius
Shared: Adventure · Horror · Singleplayer

Bendy and the Ink Machine
Shared: Horror · Singleplayer · Dark