Games like Inertia 2
Games like Inertia 2 include Portal 2, Rogue Legacy 2, Ori and the Will of the Wisps, Defy Gravity Extended, and Portal. We matched them by genre: closest matches first, and among equally close ones the better-known games.

Portal 2
Shared: Platformer · Puzzle · Action

Rogue Legacy 2
Shared: Arcade · Platformer · Action

Ori and the Will of the Wisps
Shared: Platformer · Action · Puzzle

Defy Gravity Extended
Shared: Platformer · Puzzle · Action

Portal
Shared: Puzzle · Action · Platformer

Lara Croft and the Guardian of Light
Shared: Action · Puzzle · Platformer

Planet of Lana
Shared: Action · Puzzle · Platformer

Unravel
Shared: Action · Puzzle · Platformer

Out There Somewhere
Shared: Platformer · Puzzle · Action

Tomb Raider: Legend
Shared: Action · Puzzle · Platformer

Puyo Puyo™ Tetris® 2
Shared: Puzzle · Action · Arcade

Tomb Raider: Underworld
Shared: Action · Puzzle · Platformer

Darwin's Paradox!
Shared: Action · Platformer · Puzzle

I wanna be the Creator
Shared: Action · Platformer · Puzzle

Broforce
Shared: Action · Platformer · Arcade

Fireboy & Watergirl 1: The Forest Temple
Shared: Action · Arcade · Platformer

LIMBO
Shared: Puzzle · Platformer · Action

BEEP
Shared: Platformer · Puzzle · Action

METAL SLUG 3
Shared: Arcade · Action · Platformer

Rogue Legacy
Shared: Platformer · Action · Arcade

Zuma's Revenge!
Shared: Action · Puzzle · Arcade

ANIMAL WELL
Shared: Puzzle · Platformer · Action

Ninja Kiwi Archive
Shared: Arcade · Action · Platformer

Puyo Puyo™Tetris®
Shared: Puzzle · Action · Arcade