Alessandro wrote: ↑Fri Sep 30, 2022 6:53 pm It seems to be the case. It was presented in a feature about the first games for the 128 on Sinclair User 49, April 1986, together with Daley Thompson's Supertest, The Never Ending Story, Lode Runner, Gladiator, Technician Ted (The Megamix), Knight Tyme (previewed), Sweevo's Whirled and Three Weeks In Paradise.
On a side note: to my knowledge, the first games designed with the 128 as their primary target, i.e. not modified versions of titles originally planned and released for the 48K, were The Kingdom Of Krell and Tai-Pan, both released in 1987.
Now I always thought the Spectrum 128K, being launched in Spain before anywhere else, would have a Spanish game as the first 128K-only game.
According to this very website, via a search of ZXDB of 128K-only releases in 1985, we get just two titles...
Superfile by Tynesoft (which, yes, is a database utility, definitely not a game).
Odd Job Eddie by Strobe (which is 'by' Harry S Price, therefore a rip-off of an existing game, in this case, the 48K Pyramania from 1984).
I had both of these titles in the Curry's +2 pack-in (late 1987), if Odd Job Eddie is 128K only, well, it certainly felt very 48K-ish, never really played it that much to see if it made any use of the extra memory but there wasn't any AY music in it. Is it really 128K only?
Changing that search to games only and the year to 1986:
Blizzard Pass
International Match Day
Sweevo's Whirled
Technician Ted: The Megamix
They Call Me Trooper
Yie Ar Kung-Fu 128K