The video game Muramasa currently has two tags:

sengoku_bushouki_muramasa The original Japanese name

muramasa:_the_demon_blade The localized English name

Do we prefer the original name for accuracy or the English name for ease of use?

we prefer english version. i suggest that we alias the japanese to the english one.

Since the game has been officially localised, we'd usually use the English title.

There's also an oboromuramasa tag, both should be aliased to muramasa:_the_demon_blade IMO.