Values of some European games, homebrews and Gamester81 for resale?

[lucifershalo]

Hello

I need your help to estimate how much are worth

the following games

even if only the box is on the picture the game is complete (box, cart, manual)

 

thanks for your help

 

 

 

[AtariBuff]

Interested in Steamroller if you want to part with it someday.

[Manoau2002]

Well the homebrew games you have tend to go for about the original purchase price. (give or take 10-20 dollars) For example I purchased a copy of star force on ebay a few months ago. I paid about 35 dollars for it.