Yes, here are some games I know of..
1.ToonTown
3.Bin Weevils
4.RuneScape
5.Neopets
6.Millsberry Save
7.Creature Breeder
yes there is
bin weevils,
woozworld,
secret builders and
fantage.
dizzywood
club penguinhabbo hotelpanfubarbiegirlszwinkypetsocietyneopetspowerpetsmarapets
no there isn't .
Club Penguin Moshi Monsters
Moshi monsters, etc.
moshi monsters
no i havenot seen any but if i do ill tell
Binweevils
yes adoptme,bellasara
yes there is moshi monsters and fantage
Any game similar to Moshi Monsters is going to have members. If you are asking about free memberships, there are some games similar to Moshi Monsters that have free memberships: Neopets Creature Breeder PanFu has a free Basic Membership
Neopets - you can build and decorate a house