John Twiddy
The conversion is the game
A C64 programmer whose name the magazines used as a quality signal, and who spent the nineties putting console games onto the Amiga — the most-practised and least-credited craft of the era.
John Twiddy programmed on the Commodore 64 through its best years and then moved to Amiga conversions of console games. What makes him worth an entry is that the magazines treated his name as information — ZZAP!64 would tell readers that a game was his, in the expectation that this meant something to them.
Fast facts
- On the C64: Last Ninja 2, International Karate +, California Games and others for System 3 and Epyx.
- On the Amiga: Aladdin, Cool Spot, Global Gladiators — console games brought across, credited in Amiga Power review headers, 1993–94.
- ZZAP!64: “John Twiddy’s programming keeping it all very slick to play.”
A programmer as a selling point
“John Twiddy’s programming keeping it all very slick to play” is a small sentence doing an unusual job. It assumes the reader knows the name, and it uses the programmer as evidence about the product — the way a film review uses a director.
This was normal for a few years and then stopped. In 1987 a C64 game was one or two people’s work and the gap between a good programmer and an average one showed in the first ten seconds of play, so magazines named names. By 1995 a game had a team of twenty and the same sentence would have been meaningless.
That shift is why the Vault’s people list thins out after the 8-bit era, and why it is worth recording the individuals while the record still names them.
Conversion, again
Twiddy’s nineties work is the same craft the Krisalis and Probe entries describe, seen from the programmer’s side.
Aladdin, Cool Spot and Global Gladiators are Mega Drive and SNES games. Bringing them to the Amiga meant reproducing the feel of hardware built for exactly this — hardware scrolling, big sprite budgets, a console’s fixed frame timing — on a computer that had different strengths and a floppy drive. Nobody gets credit for a conversion that works; they only get blamed for one that does not, and the target is a game the reviewer has already played on better hardware.
Doing that repeatedly, well enough that a magazine still names you, is a real distinction.
Why he matters
Twiddy worked in the brief window of the programmer as a known quantity, when British magazines credited individuals by name and readers followed them.
He also connects the two halves of the British industry’s story. The same person is on Last Ninja 2 in the C64’s golden years and on an Amiga Aladdin in the machine’s last ones, which is the whole decade in one credit line — and the only reason it is traceable is that two magazines happened to print his name.