Games like Panthalassa
Games like Panthalassa include Tangle Tower, There Is No Game: Wrong Dimension, The Room 4: Old Sins, Outer Wilds, and Phoenix Wright: Ace Attorney Trilogy. We matched them by the tags players give Panthalassa on Steam (Story Rich, Puzzle, Point & Click, Underwater, and Exploration): closest matches first, and among equally close ones the better-known games.
Tangle Tower
Shared: Puzzle · Point & Click · Story Rich
There Is No Game: Wrong Dimension
Shared: Puzzle · Point & Click · Story Rich
The Room 4: Old Sins
Shared: Puzzle · Point & Click · Story Rich
Outer Wilds
Shared: Story Rich · Exploration · Puzzle
Phoenix Wright: Ace Attorney Trilogy
Shared: Story Rich · Visual Novel · Puzzle
Detective Grimoire
Shared: Point & Click · Puzzle · Exploration
Chants of Sennaar
Shared: Puzzle · Point & Click · Adventure
The Genesis Order
Shared: Point & Click · Story Rich · Puzzle
The House of Da Vinci
Shared: Puzzle · Point & Click · Exploration
Deponia
Shared: Point & Click · Puzzle · Story Rich
No Case Should Remain Unsolved
Shared: Puzzle · Story Rich · Point & Click
Broken Age
Shared: Story Rich · Point & Click · Puzzle
Truberbrook / Trüberbrook
Shared: Point & Click · Story Rich · Puzzle
Botanicula
Shared: Point & Click · Story Rich · Exploration
Fran Bow
Shared: Story Rich · Point & Click · Puzzle
Syberia: The World Before
Shared: Story Rich · Point & Click · Puzzle
DAVE THE DIVER
Shared: Exploration · Underwater · Story Rich
The Silent Age
Shared: Point & Click · Story Rich · Puzzle
Return to Monkey Island
Shared: Point & Click · Puzzle · Story Rich
The Talos Principle 2
Shared: Story Rich · Puzzle · Exploration
Boxes: Lost Fragments
Shared: Puzzle · Point & Click · Story Rich
Carto
Shared: Puzzle · Exploration · Story Rich
Machinarium
Shared: Puzzle · Point & Click · Story Rich
Gorogoa
Shared: Puzzle · Point & Click · Story Rich