Games like Observa
Games like Observa include Slime Rancher, Outer Wilds, Internet Cafe Simulator 2, SLUDGE LIFE 2, and Firewatch. We matched them by the tags players give Observa on Steam (Exploration, Action-Adventure, 3D, First-Person, and Simulation): closest matches first, and among equally close ones the better-known games.
Slime Rancher
Shared: Exploration · First-Person · Colorful
Outer Wilds
Shared: Exploration · Mystery · Atmospheric
Internet Cafe Simulator 2
Shared: Exploration · 3D · Simulation
SLUDGE LIFE 2
Shared: Exploration · Action-Adventure · First-Person
Firewatch
Shared: Exploration · First-Person · Atmospheric
Hamster Hunter
Shared: Exploration · Action-Adventure · 3D
PEAK
Shared: Exploration · First-Person · 3D
Five Nights at Freddy's: Secret of the Mimic
Shared: First-Person · Exploration · 3D
The Witness
Shared: Exploration · First-Person · Colorful
Starfield
Shared: Exploration · First-Person · Action-Adventure
Mirror's Edge™
Shared: Action-Adventure · Exploration · First-Person
Slime Rancher 2
Shared: First-Person · Colorful · Simulation
Elite Dangerous
Shared: Exploration · Simulation · First-Person
COCOON
Shared: Exploration · 3D · Stylized
Cairn
Shared: Exploration · Stylized · Action-Adventure
No Man's Sky
Shared: Exploration · Sci-fi · First-Person
Prison Escape Simulator: Dig Out
Shared: 3D · Simulation · Exploration
Goat Simulator 3
Shared: Exploration · 3D · Action-Adventure
The Long Dark
Shared: Exploration · First-Person · Atmospheric
Blue Prince
Shared: Exploration · First-Person · Mystery
Lethal Company
Shared: First-Person · Exploration · Sci-fi
Far Cry® 5
Shared: Action-Adventure · Exploration · First-Person
What Remains of Edith Finch
Shared: Exploration · First-Person · Atmospheric
RV There Yet?
Shared: Exploration · First-Person · 3D