Games like Oneiros
Games like Oneiros include The Room 4: Old Sins, The Room, The Room Three, Servant of the Lake, and The Room Two. We matched them by the tags players give Oneiros on Steam (Adventure, Puzzle, Surreal, Escape Room, and Point & Click): closest matches first, and among equally close ones the better-known games.

The Room 4: Old Sins
Shared: Puzzle · Adventure · Point & Click

The Room
Shared: Puzzle · Adventure · Point & Click

The Room Three
Shared: Puzzle · Adventure · Point & Click

Servant of the Lake
Shared: Adventure · Puzzle · Escape Room

The Room Two
Shared: Puzzle · Point & Click · Adventure

The House of Da Vinci
Shared: Puzzle · Hidden Object · Point & Click

Rusty Lake Paradise
Shared: Puzzle · Adventure · Point & Click

There Is No Game: Wrong Dimension
Shared: Puzzle · Adventure · Point & Click

Samsara Room
Shared: Puzzle · Adventure · Point & Click

Antichamber
Shared: Puzzle · Surreal · Adventure

Superliminal
Shared: Puzzle · Surreal · Adventure

Morphopolis
Shared: Puzzle · Adventure · Point & Click

Chants of Sennaar
Shared: Adventure · Puzzle · Point & Click

Boxes: Lost Fragments
Shared: Puzzle · Adventure · Point & Click

Deponia
Shared: Adventure · Puzzle · Point & Click

Obduction
Shared: Adventure · Puzzle · Surreal

Outer Wilds
Shared: Adventure · Exploration · Puzzle

Underground Blossom
Shared: Adventure · Puzzle · Escape Room

Cube Escape Collection
Shared: Puzzle · Point & Click · Escape Room

Blue Prince
Shared: Puzzle · Exploration · Adventure

Firewatch
Shared: Adventure · Exploration · Story Rich

Fran Bow
Shared: Puzzle · Point & Click · Adventure

Moncage
Shared: Puzzle · Adventure · Surreal

Gorogoa
Shared: Puzzle · Point & Click · Adventure