Echoes of Ethos is a module for FoundryVTT, specifically for the Dnd5e system. It replaces character alignment with a custom mechanic: Morality.

With the default module settings, there are six positive and six negative morality levels. The threshold for each of these levels can be adjusted. Each morality level comes with certain skill bonuses and penalities, which are implemented via automated active effects.

The complete EoE rules can be found here: https://www.dmsguild.com/product/451085/Echoes-of-Ethos