Also carried by Letraset and Mecanorma. Latter’s Prisma Neo is a distant cousin. Numerous adaptations and extensions from the phototype era, including Bauhaus Prisma, Futura Prisma & Prisma Graphic and Prismania.
RMU offers the only commercial digital revival (Prisma Pro, 2011), but others have been produced, such as Pentaprism NF (referencing Prismania et al.), and Practise/Lineto’s Prismaset, which is not yet publicly available.