Single-player games like Inertia 2: Definitive Edition
Below are 12 single-player Steam games similar to Inertia 2: Definitive Edition, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Inertia 2: Definitive Edition page.
Ranked picks
- 1
Speedonauts
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action with Inertia 2: Definitive Edition.
Compete against the galaxy in this fast-paced speedrunning game. Create and share levels. Break records. Be the best.
- 2
Frog & Roll
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
Surf, Bhop, Climb, and blast your way to victory in Frog & Roll. A truly hardcore 3D platformer focused on speed and fast reactions. Chase the records of your friends and the world's best players.
- 3
Bulletkour
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
Bulletkour is an action-parkour game about using a gun to shoot your way through various obstacles as you try to escape an abyss with virtually nothing except skill.
- 4
SEUM: Speedrunners from Hell
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
Like a bastard child of Quake 3 and Super Meat Boy, SEUM: Speedrunners from Hell is truly hardcore and focuses on speed and fast reaction.
- 5
Celerity
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
Celerity is a fast-paced FPS parkour game. Use Wall Running, Grappling Hooks, Hookshots and many more, chain your moves and never lose momentum.
- 6
Neon White
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
Neon White is a single-player speedrunning FPS where you can sacrifice your guns for godlike parkour moves.
- 7
Hirilun
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
Hirilun is a fast-paced first-person platformer set in a dark, strange city. Run, jump, glide, sprint and dash to achieve the best time and compete on global leaderboards. Can you beat your friends in these intense time trials?
- 8
Impulsion
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
Impulsion is a fast-paced first-person platformer designed to play with your nerves and reflexes! Make your way through 25 levels of increasing difficulty by manipulating physics to your advantage, shooting force fields to slow down or speed yourself up and the environment!
- 9
Inertia
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
Inertia is a first-person platformer with free-running aspects. Inspired by various other free-running and movement based games/game-modes.
- 10
Exertus
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
Through use of the fluid movement set and dynamic level elements, players have the simple aim of getting from point A to point B, either by using the beaten path or the off-path environment within semi-linear levels.
- 11
ADVERSE
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
ADVERSE is an arcade first-person shooter platformer set in an idyllic world of corruption.
- 12
Off The Tracks
Single-player alternative to Inertia 2: Definitive Edition — playable solo, no multiplayer required. Shares Action and Indie with Inertia 2: Definitive Edition.
Combine a heap of chaos, some physics-based fun, a dash of fluid movement and some poorly driven trains, and what do you get? Off The Tracks - a chaotic physics-based first person platformer.