Games like Russian Train Trip 3
Games like Russian Train Trip 3 include Firewatch, What Remains of Edith Finch, Outer Wilds, Night in the Woods, and Fallout 4. We matched them by the tags players give Russian Train Trip 3 on Steam (Adventure, Story Rich, Visual Novel, Atmospheric, and Exploration): closest matches first, and among equally close ones the better-known games.

Firewatch
Shared: Adventure · Story Rich · Atmospheric

What Remains of Edith Finch
Shared: Story Rich · Atmospheric · Adventure

Outer Wilds
Shared: Story Rich · Adventure · Exploration

Night in the Woods
Shared: Adventure · Story Rich · Atmospheric

Fallout 4
Shared: Adventure · Exploration · Atmospheric

The Suicide of Rachel Foster
Shared: Adventure · Atmospheric · Story Rich

Amnesia: A Machine For Pigs
Shared: Story Rich · Atmospheric · Exploration

Quern - Undying Thoughts
Shared: Adventure · Atmospheric · Exploration

Red Dead Redemption 2
Shared: Story Rich · Adventure · Realistic

Riven
Shared: Adventure · Exploration · Story Rich

CARIMARA: Beneath the forlorn limbs
Shared: Story Rich · Adventure · Exploration

Blue Prince
Shared: Exploration · Story Rich · Mystery

SOMA
Shared: Story Rich · Atmospheric · Exploration

DEATH STRANDING DIRECTOR'S CUT
Shared: Story Rich · Atmospheric · Adventure

Gone Home
Shared: Atmospheric · Exploration · Story Rich

Journey
Shared: Adventure · Atmospheric · Exploration

The Vanishing of Ethan Carter
Shared: Atmospheric · Adventure · Mystery

Higurashi When They Cry Hou - Ch.1 Onikakushi
Shared: Visual Novel · Story Rich · Mystery

Dagon: by H. P. Lovecraft
Shared: Visual Novel · Atmospheric · Story Rich

INFRA
Shared: Exploration · Atmospheric · Adventure

Layers of Fear (2016)
Shared: Atmospheric · Story Rich · Adventure

The Forgotten City
Shared: Adventure · Exploration · Story Rich

Danganronpa 2: Goodbye Despair
Shared: Visual Novel · Story Rich · Adventure

The Beginner's Guide
Shared: Story Rich · Atmospheric · Adventure