Hill Climb Racing is a very addictive game with a simple concept: the user drives a vehicle in which they have to reach the end of the level, collecting coins along the way, which can be used for upgrades and unlocking content.
While the game is free, it has in-game purchases, which are completely optional and unobtrusive.
But that's just the beginning. It is possible to perform some acrobatic actions, which will be rewarded with additional coins and achievements.
The game boasts a physics engine that, while a bit exagerated (at least on Earth), proves to provide very fun bounces.
There are many vehicles available, which can be unlocked with in-game coins. Each vehicle has different features and therefore a different driving style, so playing a level with different vehicles proves to be a very different experience.
Some of these vehicles are really funny!
This is a very simple and fun game, and best of all, it's free.