Found some old game cartridges

Wait a few years till they are "really rare" and then sell them for millions!

Probably not.

They look to be old Famicom pirate carts, I used to see a lot of those at flea market years ago. Similarly to Chinese originals, the collector market it just too small for them to grow in value.

Ah, multicarts. Unless you've got some notorious one, you won't get much for them. A few € at best.

There are from the "fake" consoles, we had them here alot back in days, they were called terminator consoles. And cartridges like these, you can still buy them in china shops here. On here they are worth like 0.3eur.

so nice, most of them even came with different versions of the game with cheats. 💜❤️💖

Agreed, they're all Famiclone carts.

One of the carts (the "36 in 1") appears to be one which comes with a BASIC interpreter, and possibly other tools such as a calculator/word processor/etc for Famiclones with built in keyboards such as some of the Subors. That one may be worth a few £ to the right person, but unless any of the other carts contain "original" games, they'll be worth little more than the price of the plastic.

*edit - a picture of a "keyboard" Famiclone for those interested. I have one with mechanical keys ^^

https://dendygames.files.wordpress.com/2012/02/suborbbg1.jpg?w=645

they are moslt likely not worth anything, those are illegal compilations of games, usually the valuable stuff is genuine.