Another archive I found back in my computer. Searchers of the unknown has been widely spread in sth OSR and had a nice descendance - the most comle game being Tempora Mutantur, which I warmly suggest you get a look here. But I wonder if many people saw that version, updating the first version with all rules on the character sheet. The pdf can be found here.
The basic idea of SotU is that you can describe a D&D character like you would do with a monster (AC5, DV4, Dg 1d8), so you don't need much more to play. It also emulates at best the descending AC by making it a way to deal with stealth & stunts in addition of combat.
This version adds 8 classes, in the sense of stereotypes, deal differently with after-fight recovery, add a quick'n'easy equipement method and even suggest a skill system, still in one page. Enjoy!