Sorry, but this is the AD&D alignment system. Well, OK, only sort of:
D&D basic has two systems for alignment:
- Holmes had 5 option matrix
- Original D&D, Moldvay and BECMI, and 90s Black Box had 3 option matrix
- 3e, 3.5e, 4e, and 5e are branded “D&D” instead of AD&D even though they are a branch off of AD&D and and have the full AD&D alignment system
/me pushes glasses up the bridge of his nose WELL ACKSHUALLY