While it’s not spectacular in technical terms, Rickle looks stylish and slick in an understated sort of way. It’s text-free, too, making it both universally accessible, if slightly confusing for the first few minutes.

And it’s a quietly addictive little casual game. There’s satisfaction to be found in building the highest tower you can and unlocking new worlds, though the dynamic shifts as you work your way through the game and the intervals between new worlds grow larger.

The number of points you need to unlock worlds increases exponentially, but the number of points you earn per attempt stays pretty much the same, creating ever-expanding deserts of progress where all you can do is inch forward one slab at a time.

In that sense, Rickle has more in common with Peter Molyneux’s Curiosity than, say, Rising Sushi – a fact underlined by the Sunflower Race that developer Polyworks Games is running this summer, which comes with a cash prize.

Outside the gameplay, Rickle lets you help make the world a slightly better place.

How? A portion of the revenue from Rickle goes to three environmental charities: the Natural Resources Defense Council, the Union of Concerned Scientists, and the Environmental Working Group.

We won’t give you the spiel on what these charities do, as you can find that info on Google in your own time. Suffice it to say that they all advocate for a safer, cleaner, more sustainable planet.