They contain...
Game Data (names it goes by, release data, creator's data, system, type and player number)
Character Profiles
Story Outline
Facts on the translation (if I have access to the Japanese version)
Sections filled with random information about the game (if I have enough material to work with)
Sections involving my own thoughts on situations or characters (including pairings or unanswered questions)
Pictures (usually wallpapers and other fanworks such as icons or sigs)
My strange alternate interpretations of the characters in random fanfics
An attempt to explain why I created the shrine
Shrine to Arcana, an SNES RPG
Shrine to CIMA: The Enemy, an overlooked GBA hack 'n slash RPG