Acornsoft

From Wikipedia:

Acornsoft was the software arm of Acorn Computers, and a major publisher of software for the BBC Micro and Acorn Electron. As well as games, they also produced a large number of educational titles, extra computer languages and business and utility packages - these included ROM-based word processor VIEW and the spreadsheet ViewSheet which Acorn supplied on ROM chips/cartridges for the BBC Micro/Acorn Electron and included as standard in the BBC Master and Acorn Business Computer.

While many of their games were clones or remakes of popular arcade games (e.g. Hopper is a clone of Sega's Frogger, Snapper is Namco's Pac-Man, Arcadians is Namco's Galaxian), they also published a number of original, innovative titles (such as Revs and Elite) that went on to spawn entire genres that live on to this day.

Acornsoft also published a number of text adventure games by authors such as Peter Killworth, including Philosopher's Quest and Countdown to Doom, that remain highly regarded within the interactive fiction community.

Although Acorn continued releasing office software in the VIEW family under the Acornsoft name for the BBC Master series, they sold the Acornsoft games brand and back catalogue to Superior Software in 1986. Many games were re-released by them, often as part of compilations such as the Play It Again Sam and Acornsoft Hits series. The Acornsoft brand was also used on the packaging of all subsequent Superior games. Superior chose not to take on Acornsoft's text adventure games, most of which were released in updated versions by Topologika along with some sequels from the same authors.