Games like Elroy and the Aliens
Games like Elroy and the Aliens include Syberia: The World Before, Strange Horticulture, Murders on the Yangtze River, Tangle Tower, and Outer Wilds. We matched them by the tags players give Elroy and the Aliens on Steam (Adventure, Point & Click, Puzzle, Sci-fi, and Mystery): closest matches first, and among equally close ones the better-known games.

Syberia: The World Before
Shared: Adventure · Point & Click · Puzzle

Strange Horticulture
Shared: Puzzle · Mystery · Point & Click

Murders on the Yangtze River
Shared: Adventure · Puzzle · Detective

Tangle Tower
Shared: Point & Click · Puzzle · Detective

Outer Wilds
Shared: Adventure · Exploration · Mystery

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

The Case of the Golden Idol
Shared: Mystery · Puzzle · Point & Click

Sherlock Holmes: Crimes and Punishments
Shared: Adventure · Mystery · Puzzle

Phoenix Wright: Ace Attorney Trilogy
Shared: Mystery · Detective · Adventure

Sherlock Holmes: The Devil's Daughter
Shared: Adventure · Puzzle · Mystery

No Case Should Remain Unsolved
Shared: Puzzle · Point & Click · Adventure

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

The Roottrees are Dead
Shared: Puzzle · Point & Click · Mystery

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

The Silent Age
Shared: Point & Click · Adventure · Puzzle

Blue Prince
Shared: Puzzle · Mystery · Exploration

Broken Sword 5 - the Serpent's Curse
Shared: Adventure · Point & Click · Puzzle

The Rewinder
Shared: Adventure · Puzzle · Mystery

The White Door
Shared: Adventure · Puzzle · Point & Click

Deponia
Shared: Adventure · Point & Click · Puzzle

Servant of the Lake
Shared: Adventure · Puzzle · Point & Click

The Painscreek Killings
Shared: Mystery · Puzzle · Investigation

Return to Monkey Island
Shared: Adventure · Point & Click · Puzzle

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