Battle of the Planets is a Z-machine interactive fiction game written with Inform 6 and is © 2001 by Gunther Schmidl. It was a participant in the Speed-IF 2001 event.
In this teeny-tiny surreal game, you play as someone who was in New Orleans but now on Jupiter's moon Io for reasons you've currently forgotten. An Ioan yak and your old friend, Aluminum Hamster, are nearby.
This solution is by David Welbourn, and is based on Release 1 of the game.
The hamster is useless to you. The only hint you get for the yak is that it's female. Bah.
> x hamster. x yak. milk yak. (This produces both curd and a path north.)
> x curd. n.
Gigantic Crouton Machine
> x machine. x brutus. put curd in machine.
*** You have won ***
This walkthrough is provided free of charge since I wrote this walkthrough prior to January 2015 when I began my Patreon account, and also because the work it's based on has less than fifteen locations (so I wouldn't have charged for it anyway). I've since reformatted this walkthrough to use my currently preferred style. I hope you enjoy it!
I'm still creating new walkthroughs! Larger ones too! Please visit my Patreon account if you're interested in helping me create more interactive fiction walkthroughs. I appreciate all the help I can get! Thanks again.