@Tim_Eagon OSRIC 1.0 through 2.2 are from the 3x SRD. OSRIC 3.0 references the 5.2 SRD CC-BY. Ironically chapters 1-3 of 2.2 are declared open content, so if you want to hack I’d start there and you can add magic items, monsters, and spells from the 3.0 book. ️
