No. The **Garden of Eden Creation Kit (GECK)** — Fallout 3's official modding tool — is **Windows PC only**.
Buy Fallout 3: Game of the Year Edition on PC (Steam/GOG — $5–10 sale). Install **GECK**, **FOMM** (Fallout Mod Manager), **LOOT** (load order), and **essential mods** (Unofficial Patch, FO3 Reborn, Mothership Zeta Crew). That's the intended, stable, infinite-content experience.