Planetis 3D was a program from the late 1990s/early 2000s that allowed you to explore a virtual world. It was made by Packard Bell, who also made the operating system Packard Bell Navigator. In fact, the final version of Navigator, Packard Bell Navigator 3D, contained a link to Planetis 3D.

Three dimensions must have been on Packard Bell's mind back then. No longer content with mere two dimensions, they were now trying to conquer the third dimension as well.

passion-pb.fr says:

Planetis 3D was made so all Packard Bell users could interact with each other. You could move around different streets from real-world locations, all in 3D. It brought together people from different nationalities. It was also possible for people to communicate with one another, subject to registration. Sadly, due to lack of funds and users, the servers closed quickly.

schellert.com says

[Planetis 3D is] an online community from Packard Bell / NEC. It´s very large and interesting.

There's also an image:

That may be the only image we have left of Planetis 3D.

When I first got a pc I got a Packard Bell and Planetis 3D came with it. you joined up and became this person type thing mooching about a town square and could go into different rooms, it was very good but not well populated, when you saw someone else they stood in front of you or if it was a group there were lots of them and you talked with typing.

Planetis 3D apparently had a website at scol://213.11.70.102:planetis3D/, which doesn't exist anymore. It's a bizarre web address. Instead of starting with http, it starts with scol. Scol was some kind of software that made it easy to build 3D worlds apparently.

A Spanish news article from 2001 says

Planetis 3D is an online community that connects users together to participate in organised activities.

Here's an excerpt from another Spanish article from 2001:

The most recent example of a virtual online world is Planetis 3D, a Packard Bell creation that is just a glimpse of what's to come. Thanks to the use of a small program called Scol, developed by the company Cryo Networks, users can access a 3D city where they can move and interact with the rest of the visitors. There are Dutch, Spanish, English and French neighbourhoods, and even a Segovian town.

Planetis 3D also has a children's area, a classroom and, of course, a disco. Of all the Planetis 3D environments, the disco is by far the best well-made and realistic. The only problem is that, for the moment, it is always empty.

If you remember Planetis 3D, let me know in the comments below.