# Ontogeny Recapitulates Phylogeny *Created:* 2025-08-15, *Modified:* 2026-10-21 As an RPG develops, it passes through stages that resemble its adult ancestors: first a single-celled organism, then a fish-like creature, then an amphibian, and so on. As ever, I simply strive to break the wheel. %% BEGIN GENERATED:entries %% | Sub-collection | Entries | What it is | | ------------------------------------------------------------------------------------------------------------------------------- | --------- | -------------------------------------------------------------------------------------------------------------------- | | [[Ontogeny Recapitulates Phylogeny - Battledroids to Steel Rift\|Ontogeny Recapitulates Phylogeny: Battledroids to Steel Rift]] | 3 entries | Converting the original Battledroids, BattleTech's ancestor, into Steel Rift terms - at three levels of starter set. | | [[Ontogeny Recapitulates Phylogeny - DND to Ironsworn\|Ontogeny Recapitulates Phylogeny: D&D to Ironsworn]] | 6 entries | A serious effort to convert classic elements of D&D into content compatible with Ironsworn. | %% END GENERATED:entries %%