Gravity Ninja is a free adventure game you can play right here in your browser. It leans on physics, so expect plenty of replay value. Everything runs client-side, so it starts fast even on a modest connection.
About Gravity Ninja
In “Gravity Ninja”, you take on the role of an incredibly skilled ninja, on an exciting journey full of challenges and unbridled action. In this game, gravity is not an obstacle, but rather a tool in your character’s nimble hands.
How to play Gravity Ninja
You can work the whole thing out by playing it. Load the game above and it fills the player in portrait. On a phone you can play one-handed; on desktop the frame stays centred so nothing is cropped. Take the first run as practice and the second one seriously.
Controls
| Input | Action |
|---|---|
| Mouse | Navigate menus and interact |
| Arrow keys / WASD | Move |
| Spacebar | Primary action |
On mobile: Tap and swipe directly on the screen. The game is built for portrait, so you can play one-handed without rotating your phone.
Why it is worth playing
Gravity Ninja is easy to start and harder to master, which is the balance the best browser games hit.
At a glance
- Free to play with no account required
- Runs in the browser — nothing to download or install
- Portrait layout, comfortable one-handed on mobile
- Keyboard and mouse on desktop, full touch support on mobile.
- Physics gameplay — Momentum and gravity do half the work
- Added to our catalogue from a 2023 release
Frequently asked questions
Is Gravity Ninja free to play?
Yes. Gravity Ninja is completely free and runs in your browser. There is no purchase, no subscription and no account needed — open the page and play.
Do I need to download or install anything?
No. Gravity Ninja is an HTML5 game that runs inside the page itself. There is nothing to install, no plugin and no launcher — it loads like any other web page.
Can I play Gravity Ninja on my phone?
Yes. Tap and swipe directly on the screen. The game is built for portrait, so you can play one-handed without rotating your phone.
What are the controls for Gravity Ninja?
Keyboard and mouse on desktop, full touch support on mobile. Mouse — navigate menus and interact; Arrow keys / WASD — move; Spacebar — primary action.
Can I play Gravity Ninja fullscreen?
Yes. Use the fullscreen button in the top-right of the game player to expand it to the whole screen, and press Escape to come back out.
What kind of game is Gravity Ninja?
Gravity Ninja is a adventure game built around physics. If that is the sort of thing you enjoy, the related games further down the page are picked using the same tags.
