Universe Traveler is an adventure game created by the founder of Penguin Ice Creations. It was originally made on the editthis.info wiki 'Create Your Own Story', and it currently can be played on Penguingame Studio. Currently, it is only available as a text adventure (or a CYOA-type game).
In Universe Traveler, you play as a boy named Jazoo who completes missions in outer space, something that would be dubbed a "universe traveler". The player (you) can progress through the game after various missions, sometimes with others that will travel along the way. In some missions, the player has to defeat boss levels, including Denny (the final boss, a character from the 2004 Peg Kehret novel Abduction!).