The VOIDRUNNER'S CODEX is LIVE! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
Question: Does WoTC own the use of 1d20 roll equal or over? I've created a system different* from D&D but use 1d20 roll equal or over for roll resolution. Do I need to put the OGL in it?
(*no classes, armour, damage, magic work differently)