I'd like to thank Vector Interactive for the review key to this title.

Lots of kids start out playing with simple toys growing up, I was no different. One of those early toys was marbles, which were fun to roll around, set up in race track-like toys, and generally just fun to combine with other construction-style toy sets. Marble World is the digital version of setting this all up, with some mild issues but generally good results.

Marble World is a 3D constructor game all about setting up marble tracks. Whether you want to make a simple race track, set up a device to fling marbles all over the room or make some complicated Rube Goldberg-like marble moving track, the sky is the limit to your creativity.

The game is basically divided into two parts. Constructing your tracks, then testing them out and uploading them for others to enjoy if you wish. The constructor aspect is a level editor where using the mouse, you set up the courses your marbles will be generated on and will move around as you deem fit. You have a choice of two pre-generated rooms with existing obstacles or a "blank room" where you can set whatever you like.

Graphically, this uses bright, cartoony colors, much like those found on children's toys, which fits the motif. Aside from the marbles themselves having an oddly faded look, the color scheme works fine for the game concept. The game is fully 3D modeled, and the physics, while billed as "realistic", can occasionally have some odd movements and a hitch or two in apparent frames. The game is in development at the time of this writing, so these are likely some issues that will be cleared up as it gets further polish.

Sounds are nothing special, mostly generic blips and bleeps that are serviceable but nothing remarkable. The music is also similarly undistinguished, mostly limited to one laid-back, vaguely Hawaiian island-sounding track that is if nothing else, easy on the ears.

The game is controlled by keyboard and mouse, and then almost entirely by the latter, with the former only used when saving level names. I found the controls mostly straightforward, as they are similar to practically every program and game with a 3D level editor I've ever used in the last decade or so. My only complaints are that the part snapping hitboxes seem a bit off and rotating certain constructed items is a bit of a hassle, though the developer is still working on fixing that.

Stability is excellent. As long as you can play on minimum requirements this should run fine on Windows, and is likely to run well via Proton on Linux, as it uses the Unity Engine. There is nothing to complain about morally. No violence, language, sexual content, supernatural references, or ethical issues are present.

Overall, this needs further polish, but at present is worth the price if you are willing to put up with the things that need improvement, as this is still under active development. Otherwise, I'd wait for a sale or after it receives further polish and optimization.