Friday, January 31, 2025

Sleuth (mapped)





Inspector Clouseau

Many moons ago when the Crypt was young I stumbled upon a Berzerk game called Sleuth. It's by Larry Scholz and originally came on an ST Review cover disk. It sucked compared to the Dave Munsie conversion but I still liked it. In fact, I liked it enough to warrant spending many hours over Christmas mapping it.

However, without a trainer, I had to save my progress each time I entered a new room. It was a tedious process, and I desperately needed a better solution. That’s when Mug UK came to the rescue, kindly creating a hack for extra lives. Remarkably, the change only required 4 bytes. Not that I'd understand the jargon:

"I disassembled it using EasyRider4. Then converted the huge source file using Stew's Convert program to make it smaller.

Using Notepad++, I search for all occurrences of '5' being moved into a value. I then worked out which address the lives were (at a guess) being stored in, then looked elsewhere in the code for that same address.

Found a SUBQ.W #1, address and removed it using 2 x NOPS (4E71 twice, hence 4 bytes). Tested it and it worked the first time 🙂 "

This was a game-changer. It's remarkable how such a small change made a big difference - I could suddenly map Sleuth a hundred times faster so it wasn't long before the entire game was fully mapped - complete with all the extra details: key locations, locked doors, and bonus lives. I might be the only person left on Earth to play this quirky Berzerker, but I hope my map sparks curiosity and inspires someone else to try it.

And you should download it because Mug UK went the extra mile - Sleuth now boots up with a trainer option screen before the game begins. So I’ve created a floppy disk image (which you can optionally copy to your Ultrasatan or hard drive). Of course, it’s free to download and exclusively available first here on AtariCrypt. Now, the big question: what should I name this new disk? Arghh, surely not SleuthCrypt you cry? O_o

All credit goes to Mike Mee ~~> aka Mug UK <~~ for his fantastic hacking skills. My sincere gratitude as I doubt I would have made it past the first locked door without the extra lives (not without spending several months of my life). Okay, I imagine somebody out there is eager to play the Crypt version of Sleuth?

I sure hope so; keeping my fingers crossed. Here are all the links...




I would never have seen the final room without a trainer. Flashy place, uh?


Can you beat me? Will anyone ever play this game again?



It was only after completing the game I noticed it was on "Novice".
I replayed on "Expert", the controls seem quicker but everything else is the same?


Yep, I have fully mapped the game and the download link is above!

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