Using the ye olde good old Adventure maker, I made 4 PSP games in total, with only 3 in English.
The Zombie Survivor
This one, I think, is the first ever game I have made (and I was dreaming about such since childhood). Basically, its a "choose your adventure" book, but linear and for PSP. Sounds lame af, but people on that odd russian website kinda liked it. No downloadable has remained, though...