A riddle game. Unfortunately there is no information about total number of levels, so I can't tell about the length.
Link:
http://itb3.mine.nu/stuff/riddles/riddle1/index.html
Attention: Level 12 does not work properly in Firefox--you will have to use Internet Explorer.
RULES AS USUALLY FOR RIDDLE GAMES:
DO NOT POST SOLUTIONS OR LINKS TO LEVELS
Use spoiler tags if necessary [spoiler*]text[/spoiler] but without the *
Link:
http://itb3.mine.nu/stuff/riddles/riddle1/index.html
Attention: Level 12 does not work properly in Firefox--you will have to use Internet Explorer.
RULES AS USUALLY FOR RIDDLE GAMES:
DO NOT POST SOLUTIONS OR LINKS TO LEVELS
Use spoiler tags if necessary [spoiler*]text[/spoiler] but without the *
Comment