From wikipedia description:
"Seiklus is a puzzle platformer written on GML (Game Maker Language) with an emphasis on exploration. There is no dialogue or literary exposition of the plot. The game consists of various different, loosely connected areas the player has to explore, collecting both items to help on the way and floating "wisps" of various colours, which should optimally be all obtained. Seiklus has no weapons and no violence. There are various "hostile" lifeforms in some areas, but at worst they only set you back a little. It is impossible to die or get stuck."
- Official Game Page
- The music (Note, to play the game with music, you'll need to get the six files from the FAQ page and unzip them into the Seiklus directory on your PC.)
Andrew Marrero has a walkthrough (Local Mirror 5th Feb '08) for the game.
In an interview with the Gamer's Quarter, the author talked an interesting easter egg: "In the volcano, there's a little hill that you walk by, and it's just a hill. There's a timer on that, and if you walk by at a certain time... something happens!