hopIQ found 10 beers with the same malty and dry character as Spital Festbier. A Märzen festbier from Regensburg, Germany with rich malt character, subtle spice notes, and balanced bitterness. Medium-bodied with a smooth, dry finish and 5.7% alcohol. Ranked by flavour match rather than popularity.
Closest match: Spaten Oktoberfestbier — 89%. No twin in the catalogue yet.
1 countrymatched across 56 flavour tagsbest match 89%

No beer in the catalogue yet — these come closest.
Close on what matters, with one thing they do differently.
Same idea, less detail — open a beer to see the full comparison.