A prim with a Klein bottle generator, and a Klein bottle. The Klein bottle is a single object, has 2889 linked prims (!!!), glows, and slowly rotates along its Z axis. Here’s an article giving more information: 2889: Working with very large linksets in Opensim
Author: Zonja Capalini

Platforms: Opensim, Modrex
Download the oar file here.

This work is licensed under a Creative Commons Attribution 3.0 Unported License.
This is a terrain set of the Maledives, Ziyaarafushi island (the resort is called Summer Island Village). It is made of 3 regions (oar files included), 4 unique terrain textures and some panorama walls (if you like that kind of stuff). Photos, google earth landmark etc are included. Take a look at Ralf’s post from Maledives at Maxping. (his trip emptied Maxping’s expenses jar so we’re not going to get biscuits for the next 324 years).
Author: Ralf Hülsmann, Ulli Wunderle

Platform: Opensim
Download the set here.
License:
- free usage, personal or commercial
- limited redistribution: this content is not allowed for distribution at any places/medium other than rexxed.com
Other medium are for example: inworld-copy, http, ftp, DV, CD, fileserver and any other similar
You may use as many copies as you like, but in case you want to share this with someone else, they need to download it from rexxed.com.
- modifying is allowed (selling modified version is not..)
- selling this content is not allowed (however products based on e.g. the textures are allowed)
- if you need special commercial licenses (e.g. resell) or have question – contact the creator by Email
- some items are not self-made, so 3rd party license may applie. we got that, however as “freebie” in opensim grids like osgrid/Hypergrid. These items are marked as “3rd party content – most likely opensource/freebie – be careful in the properties.
A simulation with Mars terrain, rocks, landing pods, and enviro-bots.
Author: Greenbush

Platforms: Opensim, Modrex
Download the sim oar file here.

This work is licensed under a Creative Commons Attribution 3.0 Unported License.
Cyberlandia landscape designed by the architect Simone Riccardi aka turboy. Contemporary architecture surrounded with a natural/synthetic context .

Platforms: Opensim, realXtend
Download here: http://www.secondlifelab.it/downloads/cyberlandia.tar.gz

Quest’opera è pubblicata sotto unaCreative Commons License
Nu Athens contains four connected sims. Best viewed at night. More info here.
Author: Josh Eikenberry


Platforms: Opensim, realXtend
Download the zip file.

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.
Description: A Mexican-themed sim. It includes large houses with courtyards, small thatched palapas, and a model of the Temple of the Inscriptions Maya pyramid from Palenque, Mexico.
Author: Dave Pentecost


Download the sim oar file here.

This work is licensed under a Creative Commons Attribution 3.0 Unported License.