Disclaimer: I pledged the campaign for a modest amount.
I never owned Kobolds Ate My Baby RPG (KAMB), but they have a new Kickstarter campaign: https://www.kickstarter.com/projects/9thlevel/kobolds-ate-my-baby-20th-anniversary-zine-quest. Wikipedia article: https://en.wikipedia.org/wiki/Kobolds_Ate_My_Baby!. Link to earlier Kickstarter campaigns by the company: https://www.kickstarter.com/profile/9thlevel/created. Here’s their website: https://www.9thlevel.com/. Old website: https://www.koboldsatemybaby.com/.
You can find some of the old items on Amazon: https://www.amazon.com/Kobolds-Ate-My-Baby-Colour/dp/1940621011 (not an affiliate link). General search on Amazon: https://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias%3Dstripbooks&field-keywords=Kobolds+Ate+My+Baby&rh=n%3A283155%2Ck%3AKobolds+Ate+My+Baby (not an affiliate link).
DriveThru RPG (DTRPG): https://www.drivethrurpg.com/browse/pub/4797/9th-Level-Games.