SecondLife currently has around 23,000 user-owned regions, with another 5,000 regions owned by Linden Lab.
However, OpenSim-based grids seem to be catching up in total land area, with over 5,600 regions on the public social grids alone, up from around 5,000 from our last count earlier this summer. This number significantly undercounts the total number of OpenSim regions, however, since most private grids, standalones, and behind-the-firewall enterprise grids are not included.
Many of the grids below are connected to the hypergrid, meaning the avatars can teleport freely between them — making, in effect, one large interconnected universe of grids. There is also an uncountable number of private and corporate grids, since anyone can download the OpenSim software and create a grid or standalone mini-grid at home, behind a corporate firewall or on a hosted server.
There is currently no central registration system for grids, no directory or comprehensive search engine. There are some promising projects however attempting to catalog grids, including YoSims, GridHop and MetaverseInk. In addition, the OpenSim open source community maintains a list of grids.
- OSGrid: 2,628 regions
- MyOpenLife: 600 regions
- Avatar Hangout: 383 regions
- The New World Grid: 260 regions
- Cyberlandia: 250 regions
- WorldSimTerra: 191 regions
- FrancoGrid: 164 regions
- Legend City: 164 regions
- ReactionGrid: approximately 150 regions
- K-Grid: 132 regions
- MyOpenGrid: 99 regions
- The Gor Life: 92 regions
- 3rd Rock Grid: 88 regions
- ScienceSim: 66 regions
- Grid4Us: 65 regions
- Virtyou: 60 regions
- Metropolis: 46 regions
- Open Neuland: 33 region
- Pseudospace: 30 regions
- Eden Realm: 26 regions
- Twisted Sky: 19 regions
- Your Alternative Life: 17 regions
- Unica Universe: 17 regions
- German Grid: 15 regions
- Cuon Grid: 11 regions
- AnSky: 11 regions
- V-Business: 9 regions
- Emerald Network: 9 regions
- Open Kansai: 9 regions
- Centro Mimir: 9 regions
- Jamland: 9 regions
- Wilder Westen: 6 regions
- 2lifeGrid: 5 regions
Total: 5,613 regions
For information about hypergrid teleports to the main grids, please see our August Hypergrid List.
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