Using fancy text on Steam (and the limit nobody mentions)
- Profile name: ✅ accepts most Unicode letters and symbols.
- Custom URL (vanity ID): ❌ only plain letters, numbers and dashes — no fancy text.
The real catch: Steam limits your name to 32 bytes, not 32 characters. Fancy Unicode letters use about 4 bytes each, so a fully-styled name gets cut off after roughly 7–8 characters. For a longer name, style just one word and keep the rest plain.