Looking for a fight

Well too bad, since Bethesda just keeps cutting their Arenas.

Fallout 3, Evergreen Mills (though they did add one in the Pitt)

Skyrim, Windhelm.

Fallout 4, Combat Zone

Probably Fallout76. (they did scrap a LOT of PVP content after players were friendlier to each other than they’d expected)

Starfield, Space - Cut Ship Fighting.