Logo of the 1990 <a href="https://en.wikipedia.org/wiki/computer_game" class="extiw" title="en:computer game">computer game</a> <i><a href="https://en.wikipedia.org/wiki/Commander_Keen" class="extiw" title="en:Commander Keen">Commander Keen</a></i>, as seen on the cover art of <i><a href="https://en.wikipedia.org/wiki/Commander_Keen_in_Goodbye,_Galaxy" class="extiw" title="en:Commander Keen in Goodbye, Galaxy">Commander Keen in Goodbye, Galaxy</a>!</i>.
id Software
<a rel="nofollow" class="external free" href="https://www.gamerankings.com/pc/619366-commander-keen-goodbye-galaxy/images">http://www.gamerankings.com/pc/619366-commander-keen-goodbye-galaxy/images</a>