Inertia
Collect every gem by sliding across the board while avoiding mines.
Made by Mindblown
About Inertia
- Kind: Puzzle
- Played 11 times
- Published 2026-11-02
- Mode: single player
- Runs in a web browser, on a phone or a laptop. Free to play.
How to play Inertia
Goal: Collect all the gems on the board without hitting a mine.
Controls
- Arrow keys: slide the ball in that direction until it stops
- touch or mouse: use on-screen arrow buttons to slide the ball
- Escape: close an open panel or menu
Your first game
- Look at the board layout, gem positions and mine positions
- Press an arrow key to slide the ball across the grid
- The ball keeps moving until it hits a wall or block
- Plan moves to pass over gems while avoiding mines
- Collect every gem on the board to finish the level
FAQ
What is the Inertia game?
Inertia is a single-player puzzle game from Simon Tatham’s Portable Puzzle Collection. You slide a ball across a tiled grid to collect gems while avoiding mines.
What is the goal in Inertia?
The goal is to collect every gem on the board without running into a mine.
How do you control the ball?
Use the arrow keys or tap the on-screen arrow buttons to slide the ball. Once launched, the ball continues moving in a straight line until it hits a wall or obstacle.