GitHub - KirbyPaint/effects-generator: Browser tool built to assist with our D&D game nights. A simple webpage that holds various critical success and fumble effects.
d20pfsrd Recolored — UserStyles.world
Critical Fumble Charts for 5e D&D
All it does is make your players afraid to roll (and screws over martial players even more) : r/dndmemes
D&D 5e Critical Fail Generator ― Perchance
A Critical Hit and Fumble Generator for Pathfinder and d20/3.0/3.5