You should get to know Cuboid [Free]. It’s a chill, isometric puzzle game that tasks you with sliding and positioning rectangular pegs so they can fit into square holes. It hit PSN back in 2008, and now a free take on the experience is available on iPhone and iPad as of this morning. It looks just as good as the original, and in some ways, feels better, but it’s also not as atmospheric thanks to bolted on free-to-play functionality.

We’ve only spent a few minutes thus far, but we’ve noticed horrible low-resolution ads and peeped the title’s in-game currency, which you can use to progress. You can turn off the ads, but it appears as though you’re stuck with the currency.

We’ll have a lot more on Cuboid at a later date, but our qualm with the game stems from the fact that Cuboid was a better game without this stuff. F2P systems just don’t gel with it mechanically, and they also get in the way of the game’s laid-back atmosphere, which was a big draw in the original version.

But since its free and all, go ahead and give it a look if you have the time. The puzzle action is still as stellar as ever, despite the new system surrounding it. Who knows. It might hook you long enough to see the expansions developer HeroCraft plans to release for it.