Planet Half-Life was created in 1999.
Lonely Planet was created in 1972.
Big Planet was created in 1957.
Wrong Planet was created in 2004.
A Patchwork Planet was created in 1998.
Fifth Planet was created in 1963.
Illadelph Halflife was created on 1996-09-24.
Lonely Planet was created in 1972.
On This Planet was created in 1997.
Yes.
Dark Planet was created in 2007.
Planet Mu was created in 1995.
Planet PC was created in 1999.
How I Conquered Your Planet was created in 2006.
Planet Sketch was created in 2005.
Planet of Exile was created in 1966.
Tasty Planet was created in 2006.
Planet Mikey was created in 2005.