90's First Person Shooters Wiki
Extreme Paintbrawl

Extreme PaintBrawl is a paintball video game released for MS-DOS and Windows on October 20, 1998. The game is considered to be one of the worst video games ever made. Extreme PaintBrawl was developed in two weeks using the Build engine; its soundtrack was composed by musician Todd Duane, who sent his demo tracks to Head Games. The game was followed by Extreme PaintBrawl 2 in 1999, Ultimate PaintBrawl 3 in 2000, and Extreme PaintBrawl 4 in 2002, all of which were met with negative reviews.

Despite being "distinguished as the first non-violent 3D shooter" by the Philadelphia Daily News, prior examples of non-violent first-person shooters have existed on the market a few years before Extreme PaintBrawl: Super 3D Noah's Ark by Christian video game developer Wisdom Tree and Chex Quest, an advergame total conversion of Doom for children.